Robust image hashing for image authentication and tampering detection
Wei Weimin · Jisuanji yingyong yanjiu · 2011
This paper proposed a robust image hashing method for image authentication and tampering detection.This method was based on rotation invariance of magnitudes and corrected phases of Zernike moments.Similarity between hashes was mea-sured with the Hamming distance.Experimental results show that this method is robust against most content-preserving attacks.The hamming distance of Hashes between two different images is bigger than the threshold.So this method can be used in image authentication.At the same time,this method can be used to detect tampering image,and can locate the tampered region in the image.