Rate-adaptive codes for distributed source coding
Signal Processing - Special section: Distributed source coding
Distributed Grayscale Stereo Image Coding with Unsupervised Learning of Disparity
DCC '07 Proceedings of the 2007 Data Compression Conference
Structural digital signature for image authentication: an incidental distortion resistant scheme
IEEE Transactions on Multimedia
Noiseless coding of correlated information sources
IEEE Transactions on Information Theory
New directions in cryptography
IEEE Transactions on Information Theory
A robust image authentication method distinguishing JPEG compression from malicious manipulation
IEEE Transactions on Circuits and Systems for Video Technology
| Hi-index | 0.00 |
Image authentication is a process of verify the originality of an image by detecting malicious manipulations. It is important in content delivery via entrusted intermediaries, such as peer-to-peer file sharing. Many differently encoded versions of the original image might exist. We propose an approach using distributed source coding using mean projection and LDPC encoding method for the image authentication problem. The key idea is to provide mean projection and LDPC encoded quantized image projection as authentication data. This version can be correctly decoded with the help of an authentic image as side information. Distributed source coding provides the desired robustness against legitimate variations while detecting illegitimate modification. The decoder incorporating mean projection and LDPC algorithms can authenticate images which have undergone contrast, brightness, and affine warping adjustments.