This is the source code for the following set of papers:
T.-T. Ng, S.-F. Chang, and M.-P. Tsui, “Using Geometry Invariants for Camera Response Function Estimation,” in IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2007.
T.-T. Ng, and M.-P. Tsui,“Camera Response Function Signature For Digital Forensics – Part I: Theory And Data Selection,” IEEE Workshop on Information Forensics and Security (WIFS), Dec 2009. (Best Paper Award)
T.-T. Ng,“Camera Response Function Signature For Digital Forensics– Part II: Signature Extraction,” IEEE Workshop on Information Forensics and Security (WIFS), Dec 2009.
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Download image and parameter data from Google Drive
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Unzip the folders to the main directory
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Run wifs_main.m in Matlab
Note:
The Matlab code is unoptimized, therefore it may take tens of minutes to process an image, depending on your CPU specifications.