Detection of copy-move forgery using wavelet decomposition

Nowadays, it is possible to copy and paste important information from one image to other or within the same image, without leaving any clues of tampering. Hence, the authenticity of digital images can no longer be taken for granted. There is a requirement for the implementation of new powerful and efficient algorithms for forgery detection of a tampered images. In this paper, we have proposed a new computationally efficient algorithm for copy-move forgery detection of an image using wavelet decomposition method. The proposed method achieves an accuracy of 86.67 % within a small processing time.