Integrity authentication scheme of color video based on the fragile watermarking

摘要

The paper presents a scheme for the color video integrity authentication based on fragile watermarking. The RGB color mode is transformed to YST color mode which useing for embedding watermarking into original video. Firstly, the T-component is selected to make DCT by 4×4 blocks. After that, according to the relationship of the quantilzed DCTcoefficients of the frames, the authentication code is created, as watermarking is embeded into the image by modifying the last non-zero DCT coefficient. The video anthentication is carried out without refering to the original video, blind detection can be achieved. The simulation results show that the scheme could keep video's quality and also can detect the tamper and attack on original video.