An Improved Lexicographical Sort Algorithm of Copy-move Forgery Detection

• Published in: 2011 Second International Conference on Networking and Distributed Computing pp. 23 - 27
• Main Authors: Jie Hu, Huaxiong Zhang, Qiang Gao, Hai Huang
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.09.2011
• Subjects: Accuracy; Algorithm design and analysis; copy-move forgery; DCT; Discrete cosine transforms; distance; Eigenvalues and eigenfunctions; Forgery; lexicographical order; Noise; Watermarking

As a technique for digital image tampering, copy-move forgery is frequently used. In this paper, an improved lexicographical sort algorithm based on discrete cosine transform (DCT) is developed to detect copy-move forgery. Firstly, the image is split into 8*8 blocks, and the image data undergoes a D...