minor fixes and docs

hdr.h

@@ -14,9 +14,9 @@ using namespace cimg_library;
 /**
  * @brief Map LDR images to HDR
  * 
- * @tparam T 
- * @param LDR_images 
- * @return CImg<T> 
+ * @tparam T the integral type of the pixel
+ * @param LDR_images a CImg<T> object containing the LDR images
+ * @return CImg<T> a CImg<T> object containing the HDR image
  */
 template<typename T>
 CImg<T> LDR_to_HDR(CImg<T> const& LDR_images);
@@ -55,10 +55,9 @@ CImg<T> compute_saturation(CImg<T> const& LDR_images);
  * @brief Compute the exposure of the LDR images
  * 
  * @tparam T the integral type of the pixel
- * @param LDR_images 
+ * @param LDR_images a CImg<T> object containing the LDR images
  * @return CImg<T> a CImg<T> object containing the exposure of the LDR images
  */
- */
 template<typename T>
 CImg<T> compute_wexp(CImg<T> const& LDR_images);
 
@@ -67,8 +66,8 @@ CImg<T> compute_wexp(CImg<T> const& LDR_images);
  * @brief Fuse the LDR images
  * 
  * @tparam T the integral type of the pixel
- * @param LDR_images 
- * @param weights 
+ * @param LDR_images a CImg<T> object containing the LDR images
+ * @param weights a CImg<T> object containing the weights for each LDR image
  * @return CImg<T> 
  */
 template<typename T>
@@ -78,8 +77,8 @@ CImg<T> fuse_LDR(CImg<T> const& LDR_images, CImg<T> const& weights);
  * @brief Reconstruction of the HDR image from the Laplacian pyramid
  * 
  * @tparam T the integral type of the pixel
- * @param fused_laplacian 
- * @return CImg<T> 
+ * @param fused_laplacian a CImg<T> object containing the Laplacian pyramid of the fused LDR images
+ * @return CImg<T> a CImg<T> object containing the final HDR image
  */
 template<typename T>
 CImg<T> reconstruct_pyramid(CImg<T> const& fused_laplacian);