计算机工程与应用2012，Vol.48Issue(9)：161-164,171,5.DOI:10.3778/j.issn.1002-8331.2012.09.046
一种新的区域复制图像篡改盲检测技术
New passive-blind detection of copy-move forgery in digital images
刘潘梅 1孙容海 2吴建源1
作者信息
- 1. 广东培正学院计算机科学与工程系,广州510830
- 2. 广西师范大学计算机科学与信息工程学院,广西桂林541004
- 折叠
摘要
Abstract
A new technology of passive authentication in image forgery is proposed. It obtains two kinds of sub-block collections by segmenting the test image with two methods. Wavelet transform is performed on each block of the collections. The approximate coefficients in the highest level of the wavelet transform which represent the sub-blocks are expressed as row vectors. The vectors of each collection form a matrix. The PCA method is used to compress the data of the two matrices respectively. Tamper detection is carried out on the compressed data (the principal components of PCA). The tamper areas are marked with labels. The experimental results indicate that the proposed algorithm can not only decrease computational complexity, but also is of good robustness to blurring, JPEG operation and noise contaminating as well as the mixture of these operations. It can detect most tampered areas in copy-move tampered images which are badly contaminated.关键词
小波变换/主成分分析/图像篡改/盲检测Key words
wavelet transform/ principal component analysis/ image forgery/ passive-blind detection分类
信息技术与安全科学引用本文复制引用
刘潘梅,孙容海,吴建源..一种新的区域复制图像篡改盲检测技术[J].计算机工程与应用,2012,48(9):161-164,171,5.
