vx_ext_opencv.h

/*
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*/

/*!
 * \file
 * \brief The AMD OpenVX OpenCV Nodes Extension Library.
 *
 * \defgroup group_opencv Extension: AMD OpenCV Interop API
 * \brief AMD OpenVX OpenCV Interop Nodes for OpenCV Functionality within OpenVX Graph.
 */

#include "VX/vx.h"
#include <VX/vx_compatibility.h>

#include "opencv2/opencv.hpp"
#if USE_OPENCV_CONTRIB
#include "opencv2/xfeatures2d.hpp"
#endif
#if USE_OPENCV_4
#define CV_DIST_L1 DIST_L1
#endif

#ifndef dimof
/*! \def dimof(x)
 *  \brief A macro to get the number of elements in an array.
 *  \param [in] x The array whose size is to be determined.
 *  \return The number of elements in the array.
 */
#define dimof(x) (sizeof(x) / sizeof(x[0]))
#endif

#if _WIN32
#define SHARED_PUBLIC __declspec(dllexport)
#else
/*! \def SHARED_PUBLIC
 *  \brief A macro to specify public visibility for shared library symbols.
 */
#define SHARED_PUBLIC __attribute__((visibility("default")))
#endif

/*! \brief Creates a node in a graph using a predefined kernel structure.
 *  \param [in] graph The handle to the graph.
 *  \param [in] kernelenum The enum value representing the kernel to be used.
 *  \param [in] params An array of parameter references for the kernel.
 *  \param [in] num The number of parameters in the params array.
 *  \return A handle to the created node.
 */
vx_node vxCreateNodeByStructure(vx_graph graph, vx_enum kernelenum, vx_reference params[], vx_uint32 num);

#ifdef __cplusplus
extern "C"
{
#endif

	/*!***********************************************************************************************************
						OpenCV VX_API_ENTRY C Function NODE
	*************************************************************************************************************/

	/*! \brief [Graph] Creates a OpenCV blur function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> or <tt>\ref VX_DF_IMAGE_U16</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] kwidth The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set normalized box filter width.
	 * \param [in] kheight The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set normalized box filter height.
	 * \param [in] Anchor_X The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set anchor point x.
	 * \param [in] Anchor_Y The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set anchor point y.
	 * \param [in] Bordertype The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set borderType.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_blur(vx_graph graph, vx_image input, vx_image output, vx_uint32 kwidth, vx_uint32 kheight, vx_int32 Anchor_X, vx_int32 Anchor_Y, vx_int32 Bordertype);

	/*! \brief [Graph] Creates a OpenCV boxFilter function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> or <tt>\ref VX_DF_IMAGE_U16</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] ddepth The input <tt>\ref VX_TYPE_INT32</tt> scalar to set output image depth.
	 * \param [in] kwidth The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set box filter width.
	 * \param [in] kheight The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set box filter height.
	 * \param [in] Anchor_X The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set anchor point x.
	 * \param [in] Anchor_Y The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set anchor point y.
	 * \param [in] Normalized The input <tt>\ref VX_TYPE_BOOL</tt> scalar for Normalized argument.
	 * \param [in] Bordertype The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set borderType.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_boxFilter(vx_graph graph, vx_image input, vx_image output, vx_int32 ddepth, vx_uint32 kwidth, vx_uint32 kheight, vx_int32 Anchor_X, vx_int32 Anchor_Y, vx_bool Normalized, vx_int32 Bordertype);

	/*! \brief [Graph] Creates a OpenCV GaussianBlur function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> or <tt>\ref VX_DF_IMAGE_U16</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] kwidth The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set gaussian filter width.
	 * \param [in] kheight The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set gaussian filter height.
	 * \param [in] sigmaX The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set gaussian filter standard deviation in x-direction.
	 * \param [in] sigmaY The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set gaussian filter standard deviation in y-direction.
	 * \param [in] border_mode The input <tt>\ref VX_TYPE_ENUM</tt> scalar to set border mode.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_gaussianBlur(vx_graph graph, vx_image input, vx_image output, vx_uint32 kwidth, vx_uint32 kheight, vx_float32 sigmaX, vx_float32 sigmaY, vx_int32 border_mode);

	/*! \brief [Graph] Creates a OpenCV medianBlur function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_U16</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] ksize The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set the aperture linear size.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_medianBlur(vx_graph graph, vx_image input, vx_image output, vx_uint32 ksize);

	/*! \brief [Graph] Creates a OpenCV filter2D function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] ddepth The input <tt>\ref VX_TYPE_INT32</tt> scalar to set ddepth.
	 * \param [in] Kernel The input <tt>\ref vx_matrix</tt> scalar to set Kernel.
	 * \param [in] Anchor_X The input <tt>\ref VX_TYPE_INT32</tt> scalar to set Anchor_X.
	 * \param [in] Anchor_Y The input <tt>\ref VX_TYPE_INT32</tt> scalar to set Anchor_Y.
	 * \param [in] delta The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set delta.
	 * \param [in] border The input <tt>\ref VX_TYPE_INT32</tt> scalar to set border.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_filter2D(vx_graph graph, vx_image input, vx_image output, vx_int32 ddepth, vx_matrix Kernel, vx_int32 Anchor_X, vx_int32 Anchor_Y, vx_float32 delta, vx_int32 border);

	/*! \brief [Graph] Creates a OpenCV sepFilter2D function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] ddepth The input <tt>\ref VX_TYPE_INT32</tt> scalar to set ddepth.
	 * \param [in] KernelX The input <tt>\ref vx_matrix</tt> matrix to set KernelX.
	 * \param [in] KernelY The input <tt>\ref vx_matrix</tt> matrix to set KernelY.
	 * \param [in] Anchor_X The input <tt>\ref VX_TYPE_INT32</tt> scalar to set Anchor_X.
	 * \param [in] Anchor_Y The input <tt>\ref VX_TYPE_INT32</tt> scalar to set Anchor_Y.
	 * \param [in] delta The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set delta.
	 * \param [in] border The input <tt>\ref VX_TYPE_INT32</tt> scalar to set border.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_sepFilter2D(vx_graph graph, vx_image input, vx_image output, vx_int32 ddepth, vx_matrix KernelX, vx_matrix KernelY, vx_int32 Anchor_X, vx_int32 Anchor_Y, vx_float32 delta, vx_int32 border);

	/*! \brief [Graph] Creates a OpenCV BilateralFilter function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] d The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set K width.
	 * \param [in] Sigma_Color The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set sigmaX.
	 * \param [in] Sigma_Space The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set sigmaY.
	 * \param [in] border_mode mode The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set border mode.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_bilateralFilter(vx_graph graph, vx_image input, vx_image output, vx_uint32 d, vx_float32 Sigma_Color, vx_float32 Sigma_Space, vx_int32 border_mode);

	/*! \brief [Graph] Creates a OpenCV BRISK compute node to detect keypoints and optionally compute descriptors.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [in] mask The mask image in <tt>\ref VX_DF_IMAGE_U8</tt> format (optional).
	 * \param [out] output_kp The output keypoints <tt>\ref vx_array</tt> of <tt>\ref VX_TYPE_KEYPOINT</tt>.
	 * \param [out] output_des The output descriptors <tt>\ref vx_array</tt> of user defined data type with 64/128 byte element size depending upon extended argument (optional).
	 * \param [in] thresh The input <tt>\ref VX_TYPE_INT32</tt> scalar for thresh argument.
	 * \param [in] octaves The input <tt>\ref VX_TYPE_INT32</tt> scalar for octaves argument.
	 * \param [in] patternScale The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar for patternScale argument.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_briskCompute(vx_graph graph, vx_image input, vx_image mask, vx_array output_kp, vx_array output_des, vx_int32 thresh, vx_int32 octaves, vx_float32 patternScale);

	/*! \brief [Graph] Creates a OpenCV BRISK detector node to detect keypoints and optionally compute descriptors.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [in] mask The mask image in <tt>\ref VX_DF_IMAGE_U8</tt> format (optional).
	 * \param [out] output_kp The output keypoints <tt>\ref vx_array</tt> of <tt>\ref VX_TYPE_KEYPOINT</tt>.
	 * \param [in] thresh The input <tt>\ref VX_TYPE_INT32</tt> scalar for thresh argument.
	 * \param [in] octaves The input <tt>\ref VX_TYPE_INT32</tt> scalar for octaves argument.
	 * \param [in] patternScale The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar for patternScale argument.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_briskDetect(vx_graph graph, vx_image input, vx_image mask, vx_array output_kp, vx_int32 thresh, vx_int32 octaves, vx_float32 patternScale);

	/*! \brief [Graph] Creates a OpenCV FAST feature detector node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output_kp The output keypoints <tt>\ref vx_array</tt> of <tt>\ref VX_TYPE_KEYPOINT</tt>.
	 * \param [in] threshold The input <tt>\ref VX_TYPE_INT32</tt> scalar for threshold argument.
	 * \param [in] nonmaxSuppression The input <tt>\ref VX_TYPE_BOOL</tt> scalar for nonmaxSuppression argument.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_fast(vx_graph graph, vx_image input, vx_array output_kp, vx_int32 threshold, vx_bool nonmaxSuppression);

	/*! \brief [Graph] Creates a OpenCV GoodFeaturesToTrack detector node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output_kp The output keypoints <tt>\ref vx_array</tt> of <tt>\ref VX_TYPE_KEYPOINT</tt>.
	 * \param [in] maxCorners The input <tt>\ref VX_TYPE_INT32</tt> scalar for maxCorners argument.
	 * \param [in] qualityLevel The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar for qualityLevel argument.
	 * \param [in] minDistance The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar for minDistance argument.
	 * \param [in] mask The mask image in <tt>\ref VX_DF_IMAGE_U8</tt> format (optional).
	 * \param [in] blockSize The input <tt>\ref VX_TYPE_INT32</tt> scalar for blockSize argument.
	 * \param [in] useHarrisDetector The input <tt>\ref VX_TYPE_BOOL</tt> scalar for useHarrisDetector argument.
	 * \param [in] k The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar for k argument.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_goodFeaturesToTrack(vx_graph graph, vx_image input, vx_array output_kp, vx_int32 maxCorners, vx_float32 qualityLevel, vx_float32 minDistance, vx_image mask, vx_int32 blockSize, vx_bool useHarrisDetector, vx_float32 k);

	/*! \brief [Graph] Creates a OpenCV MSER feature detector node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_RGB</tt> format.
	 * \param [out] output_kp The output keypoints <tt>\ref vx_array</tt> of <tt>\ref VX_TYPE_KEYPOINT</tt>.
	 * \param [in] mask The mask image in <tt>\ref VX_DF_IMAGE_U8</tt> format (optional).
	 * \param [in] delta The input <tt>\ref VX_TYPE_INT32</tt> scalar for delta argument.
	 * \param [in] min_area The input <tt>\ref VX_TYPE_INT32</tt> scalar for min_area argument.
	 * \param [in] max_area The input <tt>\ref VX_TYPE_INT32</tt> scalar for max_area argument.
	 * \param [in] max_variation The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar for max_variation argument.
	 * \param [in] min_diversity The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar for min_diversity argument.
	 * \param [in] max_evolution The input <tt>\ref VX_TYPE_INT32</tt> scalar for max_evolution argument.
	 * \param [in] area_threshold The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar for area_threshold argument.
	 * \param [in] min_margin The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar for min_margin argument.
	 * \param [in] edge_blur_size The input <tt>\ref VX_TYPE_INT32</tt> scalar for max_area argument.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_mserDetect(vx_graph graph, vx_image input, vx_array output_kp, vx_image mask, vx_int32 delta, vx_int32 min_area, vx_int32 max_area, vx_float32 max_variation, vx_float32 min_diversity, vx_int32 max_evolution, vx_float32 area_threshold, vx_float32 min_margin, vx_int32 edge_blur_size);

	/*! \brief [Graph] Creates a OpenCV ORB Compute node to detect keypoints and optionally compute descriptors.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [in] mask The mask image in <tt>\ref VX_DF_IMAGE_U8</tt> format (optional).
	 * \param [in] output_kp The output keypoints <tt>\ref vx_array</tt> of <tt>\ref VX_TYPE_KEYPOINT</tt>.
	 * \param [out] output_des The output descriptors <tt>\ref vx_array</tt> of user defined data type with 64/128 byte element size depending upon extended argument.
	 * \param [in] nfeatures The input <tt>\ref VX_TYPE_INT32</tt> scalar for nfeatures argument.
	 * \param [in] scaleFactor The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar for scaleFactor argument.
	 * \param [in] nlevels The input <tt>\ref VX_TYPE_INT32</tt> scalar for nlevels argument.
	 * \param [in] edgeThreshold The input <tt>\ref VX_TYPE_INT32</tt> scalar for edgeThreshold argument.
	 * \param [in] firstLevel The input <tt>\ref VX_TYPE_INT32</tt> scalar for firstLevel argument.
	 * \param [in] WTA_K The input <tt>\ref VX_TYPE_INT32</tt> scalar for WTA_K argument.
	 * \param [in] scoreType The input <tt>\ref VX_TYPE_INT32</tt> scalar for scoreType argument.
	 * \param [in] patchSize The input <tt>\ref VX_TYPE_INT32</tt> scalar for patchSize argument.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_orbCompute(vx_graph graph, vx_image input, vx_image mask, vx_array output_kp, vx_array output_des, vx_int32 nfeatures, vx_float32 scaleFactor, vx_int32 nlevels, vx_int32 edgeThreshold, vx_int32 firstLevel, vx_int32 WTA_K, vx_int32 scoreType, vx_int32 patchSize);

	/*! \brief [Graph] Creates a OpenCV ORB detector node to detect keypoints and optionally compute descriptors.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [in] mask The mask image in <tt>\ref VX_DF_IMAGE_U8</tt> format (optional).
	 * \param [out] output_kp The output keypoints <tt>\ref vx_array</tt> of <tt>\ref VX_TYPE_KEYPOINT</tt>.
	 * \param [in] nfeatures The input <tt>\ref VX_TYPE_INT32</tt> scalar for nfeatures argument.
	 * \param [in] scaleFactor The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar for scaleFactor argument.
	 * \param [in] nlevels The input <tt>\ref VX_TYPE_INT32</tt> scalar for nlevels argument.
	 * \param [in] edgeThreshold The input <tt>\ref VX_TYPE_INT32</tt> scalar for edgeThreshold argument.
	 * \param [in] firstLevel The input <tt>\ref VX_TYPE_INT32</tt> scalar for firstLevel argument.
	 * \param [in] WTA_K The input <tt>\ref VX_TYPE_INT32</tt> scalar for WTA_K argument.
	 * \param [in] scoreType The input <tt>\ref VX_TYPE_INT32</tt> scalar for scoreType argument.
	 * \param [in] patchSize The input <tt>\ref VX_TYPE_INT32</tt> scalar for patchSize argument.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_orbDetect(vx_graph graph, vx_image input, vx_image mask, vx_array output_kp, vx_int32 nfeatures, vx_float32 scaleFactor, vx_int32 nlevels, vx_int32 edgeThreshold, vx_int32 firstLevel, vx_int32 WTA_K, vx_int32 scoreType, vx_int32 patchSize);

	/*! \brief [Graph] Creates a OpenCV SIFT Compute node to compute descriptor from specified keypoints.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [in] mask The mask image in <tt>\ref VX_DF_IMAGE_U8</tt> format (optional).
	 * \param [in] output_kp The output keypoints <tt>\ref vx_array</tt> of <tt>\ref VX_TYPE_KEYPOINT</tt>.
	 * \param [out] output_des The output descriptors <tt>\ref vx_array</tt> of user defined data type with 128 byte element size.
	 * \param [in] nfeatures The input <tt>\ref VX_TYPE_INT32</tt> scalar for nfeatures argument.
	 * \param [in] nOctaveLayers The input <tt>\ref VX_TYPE_INT32</tt> scalar for nOctaveLayers argument.
	 * \param [in] contrastThreshold The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar for contrastThreshold argument.
	 * \param [in] edgeThreshold The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar for edgeThreshold argument.
	 * \param [in] sigma The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar for sigma argument.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_siftCompute(vx_graph graph, vx_image input, vx_image mask, vx_array output_kp, vx_array output_des, vx_int32 nfeatures, vx_int32 nOctaveLayers, vx_float32 contrastThreshold, vx_float32 edgeThreshold, vx_float32 sigma);

	/*! \brief [Graph] Creates a OpenCV SIFT detector node to detect keypoints and optionally compute descriptors.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [in] mask The mask image in <tt>\ref VX_DF_IMAGE_U8</tt> format (optional).
	 * \param [out] output_kp The output keypoints <tt>\ref vx_array</tt> of <tt>\ref VX_TYPE_KEYPOINT</tt>.
	 * \param [in] nfeatures The input <tt>\ref VX_TYPE_INT32</tt> scalar for nfeatures argument. Set this to capacity of output_kp to retain best keypoints.
	 * \param [in] nOctaveLayers The input <tt>\ref VX_TYPE_INT32</tt> scalar for nOctaveLayers argument.
	 * \param [in] contrastThreshold The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar for contrastThreshold argument.
	 * \param [in] edgeThreshold The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar for edgeThreshold argument.
	 * \param [in] sigma The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar for sigma argument.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_siftDetect(vx_graph graph, vx_image input, vx_image mask, vx_array output_kp, vx_int32 nfeatures, vx_int32 nOctaveLayers, vx_float32 contrastThreshold, vx_float32 edgeThreshold, vx_float32 sigma);

	/*! \brief [Graph] Creates a OpenCV Simple Blob detector node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_RGB</tt> format.
	 * \param [out] output_kp The output keypoints <tt>\ref vx_array</tt> of <tt>\ref VX_TYPE_KEYPOINT</tt>.
	 * \param [in] mask The mask image in <tt>\ref VX_DF_IMAGE_U8</tt> format (optional).
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_simpleBlobDetector(vx_graph graph, vx_image input, vx_array output_kp, vx_image mask);

	/*! \brief [Graph] Creates a OpenCV Star feature detector node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_RGB</tt> format.
	 * \param [out] output_kp The output keypoints <tt>\ref vx_array</tt> of <tt>\ref VX_TYPE_KEYPOINT</tt>.
	 * \param [in] mask The mask image in <tt>\ref VX_DF_IMAGE_U8</tt> format (optional).
	 * \param [in] maxSize The input <tt>\ref VX_TYPE_INT32</tt> scalar for maxSize argument.
	 * \param [in] responseThreshold The input <tt>\ref VX_TYPE_INT32</tt> scalar for responseThreshold argument.
	 * \param [in] lineThresholdProjected The input <tt>\ref VX_TYPE_INT32</tt> scalar for lineThresholdProjected argument.
	 * \param [in] lineThresholdBinarized The input <tt>\ref VX_TYPE_INT32</tt> scalar for lineThresholdBinarized argument.
	 * \param [in] suppressNonmaxSize The input <tt>\ref VX_TYPE_INT32</tt> scalar for suppressNonmaxSize argument.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_starFeatureDetector(vx_graph graph, vx_image input, vx_array output_kp, vx_image mask, vx_int32 maxSize, vx_int32 responseThreshold, vx_int32 lineThresholdProjected, vx_int32 lineThresholdBinarized, vx_int32 suppressNonmaxSize);

	/*! \brief [Graph] Creates a OpenCV SURF Compute node to compute descriptor from specified keypoints.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [in] mask The mask image in <tt>\ref VX_DF_IMAGE_U8</tt> format (optional).
	 * \param [in] output_kp The output keypoints <tt>\ref vx_array</tt> of <tt>\ref VX_TYPE_KEYPOINT</tt>.
	 * \param [out] output_des The output descriptors <tt>\ref vx_array</tt> of user defined data type with 64/128 byte element size depending upon extended argument.
	 * \param [in] hessianThreshold The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar for hessianThreshold argument.
	 * \param [in] nOctaves The input <tt>\ref VX_TYPE_INT32</tt> scalar for nOctaves argument.
	 * \param [in] nOctaveLayers The input <tt>\ref VX_TYPE_INT32</tt> scalar for nOctaveLayers argument.
	 * \param [in] extended The input <tt>\ref VX_TYPE_BOOL</tt> scalar for extended argument.
	 * \param [in] upright The input <tt>\ref VX_TYPE_BOOL</tt> scalar for upright argument.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_surfCompute(vx_graph graph, vx_image input, vx_image mask, vx_array output_kp, vx_array output_des, vx_float32 hessianThreshold, vx_int32 nOctaves, vx_int32 nOctaveLayers, vx_bool extended, vx_bool upright);

	/*! \brief [Graph] Creates a OpenCV SURF detector node to detect keypoints and optionally compute descriptors.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [in] mask The mask image in <tt>\ref VX_DF_IMAGE_U8</tt> format (optional).
	 * \param [out] output_kp The output keypoints <tt>\ref vx_array</tt> of <tt>\ref VX_TYPE_KEYPOINT</tt>.
	 * \param [out] output_des The output descriptors <tt>\ref vx_array</tt> of user defined data type with 64/128 byte element size depending upon extended argument (optional).
	 * \param [in] hessianThreshold The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar for hessianThreshold argument.
	 * \param [in] nOctaves The input <tt>\ref VX_TYPE_INT32</tt> scalar for nOctaves argument.
	 * \param [in] nOctaveLayers The input <tt>\ref VX_TYPE_INT32</tt> scalar for nOctaveLayers argument.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_surfDetect(vx_graph graph, vx_image input, vx_image mask, vx_array output_kp, vx_array output_des, vx_float32 hessianThreshold, vx_int32 nOctaves, vx_int32 nOctaveLayers);

	/*! \brief [Graph] Creates a OpenCV Flip function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] FlipCode The input <tt>\ref VX_TYPE_INT32</tt> scalar to set FlipCode.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_flip(vx_graph graph, vx_image input, vx_image output, vx_int32 FlipCode);

	/*! \brief [Graph] Creates a OpenCV transpose function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> or <tt>\ref VX_DF_IMAGE_U16</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_transpose(vx_graph graph, vx_image input, vx_image output);

	/*! \brief [Graph] Creates a OpenCV integral function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output image in <tt>\ref VX_DF_IMAGE_U32</tt> or <tt>\ref VX_DF_IMAGE_S32</tt> format.
	 * \param [in] sdepth The input <tt>\ref VX_TYPE_INT32</tt> scalar to set sdepth.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_integral(vx_graph graph, vx_image input, vx_image output, vx_int32 sdepth);

	/*! \brief [Graph] Creates a OpenCV norm function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] norm_value The output <tt>\ref VX_TYPE_FLOAT32</tt> scalar norm_value.
	 * \param [in] norm_type The input <tt>\ref VX_TYPE_INT32</tt> scalar to set norm_type.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_norm(vx_graph graph, vx_image input, vx_float32 norm_value, vx_int32 norm_type);

	/*! \brief [Graph] Creates a OpenCV countNonZero function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] non_zero The output <tt>\ref VX_TYPE_INT32</tt> scalar non_zero.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_countNonZero(vx_graph graph, vx_image input, vx_int32 non_zero);

	/*! \brief [Graph] Creates a OpenCV Multiply function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input_1 The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [in] input_2 The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] scale The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set scale.
	 * \param [in] dtype The input <tt>\ref VX_TYPE_INT32</tt> scalar to set dtype.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_multiply(vx_graph graph, vx_image input_1, vx_image input_2, vx_image output, vx_float32 scale, vx_int32 dtype);

	/*! \brief [Graph] Creates a OpenCV Divide function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input_1 The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [in] input_2 The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] scale The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set scale.
	 * \param [in] dtype The input <tt>\ref VX_TYPE_INT32</tt> scalar to set dtype.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_divide(vx_graph graph, vx_image input_1, vx_image input_2, vx_image output, vx_float32 scale, vx_int32 dtype);

	/*! \brief [Graph] Creates a OpenCV ADD function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input_1 The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [in] input_2 The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_add(vx_graph graph, vx_image input_1, vx_image input_2, vx_image output);

	/*! \brief [Graph] Creates a OpenCV Subtract function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input_1 The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [in] input_2 The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_subtract(vx_graph graph, vx_image input_1, vx_image input_2, vx_image output);

	/*! \brief [Graph] Creates a OpenCV absdiff function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input_1 The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [in] input_2 The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_absDiff(vx_graph graph, vx_image input_1, vx_image input_2, vx_image output);

	/*! \brief [Graph] Creates a OpenCV addWeighted function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input_1 The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [in] aplha The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set aplha.
	 * \param [in] input_2 The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [in] beta The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set beta.
	 * \param [in] gamma The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set gamma.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] dtype The input <tt>\ref VX_TYPE_INT32</tt> scalar to set dtype.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_addWeighted(vx_graph graph, vx_image input_1, vx_float32 aplha, vx_image input_2, vx_float32 beta, vx_float32 gamma, vx_image output, vx_int32 dtype);

	/*! \brief [Graph] Creates a OpenCV adaptiveThreshold function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] maxValue The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set maxValue.
	 * \param [in] adaptiveMethod The input <tt>\ref VX_TYPE_INT32</tt> scalar to set adaptiveMethod.
	 * \param [in] thresholdType The input <tt>\ref VX_TYPE_INT32</tt> scalar to set thresholdType.
	 * \param [in] blockSize The input <tt>\ref VX_TYPE_INT32</tt> scalar to set blockSize.
	 * \param [in] c The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set c.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_adaptiveThreshold(vx_graph graph, vx_image input, vx_image output, vx_float32 maxValue, vx_int32 adaptiveMethod, vx_int32 thresholdType, vx_int32 blockSize, vx_float32 c);

	/*! \brief [Graph] Creates a OpenCV threshold function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] thresh The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set thresh.
	 * \param [in] maxVal The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set maxVal.
	 * \param [in] type The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set type.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_threshold(vx_graph graph, vx_image input, vx_image output, vx_float32 thresh, vx_float32 maxVal, vx_int32 type);

	/*! \brief [Graph] Creates a OpenCV distanceTransform function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_distanceTransform(vx_graph graph, vx_image input, vx_image output);

	/*! \brief [Graph] Creates a OpenCV cvtColor function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] CODE The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set FlipCode.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_cvtColor(vx_graph graph, vx_image input, vx_image output, vx_uint32 CODE);

	/*! \brief [Graph] Creates a OpenCV fastNlMeansDenoising function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] h The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set h.
	 * \param [in] template_ws The input <tt>\ref VX_TYPE_INT32</tt> scalar to set template_ws.
	 * \param [in] search_ws The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set search_ws.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_fastNlMeansDenoising(vx_graph graph, vx_image input, vx_image output, vx_float32 h, vx_int32 template_ws, vx_int32 search_ws);

	/*! \brief [Graph] Creates a OpenCV fastNlMeansDenoisingColored function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_RGB</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] h The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set h.
	 * \param [in] h_color The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set h_color.
	 * \param [in] template_ws The input <tt>\ref VX_TYPE_INT32</tt> scalar to set template_ws.
	 * \param [in] search_ws The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set search_ws.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_fastNlMeansDenoisingColored(vx_graph graph, vx_image input, vx_image output, vx_float32 h, vx_float32 h_color, vx_int32 template_ws, vx_int32 search_ws);

	/*! \brief [Graph] Creates a OpenCV Resize function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] Size_X The input <tt>\ref VX_TYPE_INT32</tt> scalar to set Size_X.
	 * \param [in] Size_Y The input <tt>\ref VX_TYPE_INT32</tt> scalar to set Size_Y.
	 * \param [in] FX The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set FX.
	 * \param [in] FY The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set FY.
	 * \param [in] interpolation The input <tt>\ref VX_TYPE_INT32</tt> scalar to set interpolation.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_resize(vx_graph graph, vx_image input, vx_image output, vx_int32 Size_X, vx_int32 Size_Y, vx_float32 FX, vx_float32 FY, vx_int32 interpolation);

	/*! \brief [Graph] Creates a OpenCV pyrup function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] Swidth The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set Swidth.
	 * \param [in] Sheight The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set Sheight.
	 * \param [in] bordertype The input <tt>\ref VX_TYPE_INT32</tt> scalar to set bordertype.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_pyrUp(vx_graph graph, vx_image input, vx_image output, vx_uint32 Swidth, vx_uint32 Sheight, vx_int32 bordertype);

	/*! \brief [Graph] Creates a OpenCV pyrdown function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] Swidth The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set Swidth.
	 * \param [in] Sheight The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set Sheight.
	 * \param [in] bordertype The input <tt>\ref VX_TYPE_INT32</tt> scalar to set bordertype.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_pyrDown(vx_graph graph, vx_image input, vx_image output, vx_uint32 Swidth, vx_uint32 Sheight, vx_int32 bordertype);

	/*! \brief [Graph] Creates a OpenCV buildPyramid function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output Pyramid.
	 * \param [in] maxLevel The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set maxLevel.
	 * \param [in] border The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set border.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_buildPyramid(vx_graph graph, vx_image input, vx_pyramid output, vx_uint32 maxLevel, vx_uint32 border);

	/*! \brief [Graph] Creates a OpenCV buildOpticalFlowPyramid function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output Pyramid.
	 * \param [in] S_width The input <tt>\ref VX_TYPE_INT32</tt> scalar to set S_width.
	 * \param [in] S_height The input <tt>\ref VX_TYPE_INT32</tt> scalar to set S_height.
	 * \param [in] WinSize The input <tt>\ref VX_TYPE_INT32</tt> scalar to set WinSize.
	 * \param [in] WithDerivatives The input <tt>\ref VX_TYPE_BOOL</tt> scalar to set withDerivatives.
	 * \param [in] Pyr_border The input <tt>\ref VX_TYPE_INT32</tt> scalar to set Pyr_border.
	 * \param [in] derviBorder The input <tt>\ref VX_TYPE_INT32</tt> scalar to set derviBorder.
	 * \param [in] tryReuse The input <tt>\ref VX_TYPE_BOOL</tt> scalar to set tryReuseInputImage.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_buildOpticalFlowPyramid(vx_graph graph, vx_image input, vx_pyramid output, vx_uint32 S_width, vx_uint32 S_height, vx_int32 WinSize, vx_bool WithDerivatives, vx_int32 Pyr_border, vx_int32 derviBorder, vx_bool tryReuse);

	/*! \brief [Graph] Creates a OpenCV Dilate function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] Kernel The input <tt>\ref vx_matrix</tt> matrix to set Kernel.
	 * \param [in] Anchor_X The input <tt>\ref VX_TYPE_INT32</tt> scalar to set Anchor_X.
	 * \param [in] Anchor_Y The input <tt>\ref VX_TYPE_INT32</tt> scalar to set Anchor_Y.
	 * \param [in] iterations The input <tt>\ref VX_TYPE_INT32</tt> scalar to set iterations.
	 * \param [in] border The input <tt>\ref VX_TYPE_INT32</tt> scalar to set border.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_dilate(vx_graph graph, vx_image input, vx_image output, vx_matrix Kernel, vx_int32 Anchor_X, vx_int32 Anchor_Y, vx_int32 iterations, vx_int32 border);

	/*! \brief [Graph] Creates a OpenCV Erode function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] Kernel The input <tt>\ref vx_matrix</tt> matrix to set Kernel.
	 * \param [in] Anchor_X The input <tt>\ref VX_TYPE_INT32</tt> scalar to set Anchor_X.
	 * \param [in] Anchor_Y The input <tt>\ref VX_TYPE_INT32</tt> scalar to set Anchor_Y.
	 * \param [in] iterations The input <tt>\ref VX_TYPE_INT32</tt> scalar to set iterations.
	 * \param [in] border The input <tt>\ref VX_TYPE_INT32</tt> scalar to set border.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_erode(vx_graph graph, vx_image input, vx_image output, vx_matrix Kernel, vx_int32 Anchor_X, vx_int32 Anchor_Y, vx_int32 iterations, vx_int32 border);

	/*! \brief [Graph] Creates a OpenCV warpAffine function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] M The input <tt>\ref vx_matrix</tt> matrix to set M.
	 * \param [in] Size_X The input <tt>\ref VX_TYPE_INT32</tt> scalar to set Size_X.
	 * \param [in] Size_Y The input <tt>\ref VX_TYPE_INT32</tt> scalar to set Size_Y.
	 * \param [in] flags The input <tt>\ref VX_TYPE_INT32</tt> scalar to set flags.
	 * \param [in] border The input <tt>\ref VX_TYPE_INT32</tt> scalar to set border.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_warpAffine(vx_graph graph, vx_image input, vx_image output, vx_matrix M, vx_int32 Size_X, vx_int32 Size_Y, vx_int32 flags, vx_int32 border);

	/*! \brief [Graph] Creates a OpenCV warpPerspective function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] M The input <tt>\ref vx_matrix</tt> matrix to set M.
	 * \param [in] Size_X The input <tt>\ref VX_TYPE_INT32</tt> scalar to set Size_X.
	 * \param [in] Size_Y The input <tt>\ref VX_TYPE_INT32</tt> scalar to set Size_Y.
	 * \param [in] flags The input <tt>\ref VX_TYPE_INT32</tt> scalar to set flags.
	 * \param [in] border The input <tt>\ref VX_TYPE_INT32</tt> scalar to set border.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_warpPerspective(vx_graph graph, vx_image input, vx_image output, vx_matrix M, vx_int32 Size_X, vx_int32 Size_Y, vx_int32 flags, vx_int32 border);

	/*! \brief [Graph] Creates a OpenCV morphologyEX function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] OP The input <tt>\ref VX_TYPE_INT32</tt> scalar to set OP.
	 * \param [in] Kernel The input <tt>\ref vx_matrix</tt> matrix to set Kernel.
	 * \param [in] Anchor_X The input <tt>\ref VX_TYPE_INT32</tt> scalar to set Anchor_X.
	 * \param [in] Anchor_Y The input <tt>\ref VX_TYPE_INT32</tt> scalar to set Anchor_Y.
	 * \param [in] iterations The input <tt>\ref VX_TYPE_INT32</tt> scalar to set iterations.
	 * \param [in] border The input <tt>\ref VX_TYPE_INT32</tt> scalar to set border.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_morphologyEX(vx_graph graph, vx_image input, vx_image output, vx_int32 OP, vx_matrix Kernel, vx_int32 Anchor_X, vx_int32 Anchor_Y, vx_int32 iterations, vx_int32 border);

	/*! \brief [Graph] Creates a OpenCV Bitwise And function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input_1 The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [in] input_2 The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_bitwiseAnd(vx_graph graph, vx_image input_1, vx_image input_2, vx_image output);

	/*! \brief [Graph] Creates a OpenCV Bitwise NOT function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_bitwiseNot(vx_graph graph, vx_image input, vx_image output);

	/*! \brief [Graph] Creates a OpenCV Bitwise OR function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input_1 The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [in] input_2 The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_bitwiseOr(vx_graph graph, vx_image input_1, vx_image input_2, vx_image output);

	/*! \brief [Graph] Creates a OpenCV Bitwise XOR function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input_1 The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [in] input_2 The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_bitwiseXor(vx_graph graph, vx_image input_1, vx_image input_2, vx_image output);

	/*! \brief [Graph] Creates a OpenCV Canny function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt>  format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] threshold1 The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set threshold1.
	 * \param [in] threshold2 The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set threshold2.
	 * \param [in] aperture_size The input <tt>\ref VX_TYPE_INT32</tt> scalar to set aperture_size.
	 * \param [in] L2_Gradient The input <tt>\ref VX_TYPE_BOOL</tt> scalar to set L2_Gradient.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_canny(vx_graph graph, vx_image input, vx_image output, vx_float32 threshold1, vx_float32 threshold2, vx_int32 aperture_size, vx_bool L2_Gradient);

	/*! \brief [Graph] Creates a OpenCV Compare function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input_1 The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [in] input_2 The input image in <tt>\ref VX_DF_IMAGE_U8</tt> or <tt>\ref VX_DF_IMAGE_S16</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] cmpop The input value in vx_int32 format.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_compare(vx_graph graph, vx_image input_1, vx_image input_2, vx_image output, vx_int32 cmpop);

	/*! \brief [Graph] Creates a OpenCV convertScaleAbs function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] image_in The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] image_out The output image is as same size and type of input.
	 * \param [in] alpha The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set alpha.
	 * \param [in] beta The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set beta.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_convertScaleAbs(vx_graph graph, vx_image image_in, vx_image image_out, vx_float32 alpha, vx_float32 beta);

	/*! \brief [Graph] Creates a OpenCV cornerHarris function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] blocksize The input <tt>\ref VX_TYPE_INT32</tt> scalar to set blocksize.
	 * \param [in] ksize The input <tt>\ref VX_TYPE_INT32</tt> scalar to set ksize.
	 * \param [in] k The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set K.
	 * \param [in] border The input <tt>\ref VX_TYPE_INT32</tt> scalar to set border.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_cornerHarris(vx_graph graph, vx_image input, vx_image output, vx_int32 blocksize, vx_int32 ksize, vx_float32 k, vx_int32 border);

	/*! \brief [Graph] Creates a OpenCV cornerMinEigenVal function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] blockSize The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set blocksize.
	 * \param [in] ksize The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set ksize.
	 * \param [in] border The input <tt>\ref VX_TYPE_INT32</tt> scalar to set border.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_cornerMinEigenVal(vx_graph graph, vx_image input, vx_image output, vx_uint32 blockSize, vx_uint32 ksize, vx_int32 border);

	/*! \brief [Graph] Creates a OpenCV Laplacian function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] ddepth The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set ddepth.
	 * \param [in] ksize The input <tt>\ref VX_TYPE_UINT32</tt> scalar to set ksize.
	 * \param [in] scale The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set scale.
	 * \param [in] delta The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set delta.
	 * \param [in] border_mode The input <tt>\ref VX_TYPE_INT32</tt> scalar to set border_mode.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_laplacian(vx_graph graph, vx_image input, vx_image output, vx_uint32 ddepth, vx_uint32 ksize, vx_float32 scale, vx_float32 delta, vx_int32 border_mode);

	/*! \brief [Graph] Creates a OpenCV Scharr function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] ddepth The input <tt>\ref VX_TYPE_INT32</tt> scalar to set ddepth.
	 * \param [in] dx The input <tt>\ref VX_TYPE_INT32</tt> scalar to set dx.
	 * \param [in] dy The input <tt>\ref VX_TYPE_INT32</tt> scalar to set dy.
	 * \param [in] scale The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set scale.
	 * \param [in] delta The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set delta.
	 * \param [in] bordertype The input <tt>\ref VX_TYPE_INT32</tt> scalar to set bordertype.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_scharr(vx_graph graph, vx_image input, vx_image output, vx_int32 ddepth, vx_int32 dx, vx_int32 dy, vx_float32 scale, vx_float32 delta, vx_int32 bordertype);

	/*! \brief [Graph] Creates a OpenCV Sobel function node.
	 * \ingroup group_opencv
	 * \param [in] graph The reference to the graph.
	 * \param [in] input The input image in <tt>\ref VX_DF_IMAGE_U8</tt> format.
	 * \param [out] output The output image is as same size and type of input.
	 * \param [in] ddepth The input <tt>\ref VX_TYPE_INT32</tt> scalar to set ddepth.
	 * \param [in] dx The input <tt>\ref VX_TYPE_INT32</tt> scalar to set dx.
	 * \param [in] dy The input <tt>\ref VX_TYPE_INT32</tt> scalar to set dy.
	 * \param [in] Ksize The input <tt>\ref VX_TYPE_INT32</tt> scalar to set Ksize.
	 * \param [in] scale The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set scale.
	 * \param [in] delta The input <tt>\ref VX_TYPE_FLOAT32</tt> scalar to set delta.
	 * \param [in] bordertype The input <tt>\ref VX_TYPE_INT32</tt> scalar to set bordertype.
	 * \return <tt>\ref vx_node</tt>.
	 * \retval vx_node A node reference. Any possible errors preventing a successful creation should be checked using <tt>\ref vxGetStatus</tt>*/
	extern "C" SHARED_PUBLIC vx_node VX_API_CALL vxExtCvNode_sobel(vx_graph graph, vx_image input, vx_image output, vx_int32 ddepth, vx_int32 dx, vx_int32 dy, vx_int32 Ksize, vx_float32 scale, vx_float32 delta, vx_int32 bordertype);

#ifdef __cplusplus
}
#endif