这是关于DCT域的嵌入算法 用matlab实现的 它可以获得很高的不可感知性。-on DCT algorithm embedded with Matlab it can achieve the high Imperceptible sex.

自己手写的图像的FFT变换和DCT变换的MATLAB代码-own handwritten Image Transform FFT and DCT MATLAB code

This a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN -