In the DCT domain, the use of 8* 8 block DM methods, embedding hidden information. Quantization step size can be set to choose a variety of classic attacks and control the strength of the attack. Return to the bit error rate and peak signal to noise ratio. Prepared using Matlab.

dm_dct_fenkuai

..............\dm_dct_fenkuai.m


..............\laugh-single-1.bmp
..............\laugh-single-3.bmp
..............\laugh-single.bmp
..............\laugh-single_256.bmp
..............\lena.bmp

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