Describe: 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.

File list(time 2003050523~2009021313)(Click to check if it's the file you need, and recomment it at the bottom):
  dm_dct_fenkuai
  
  ..............\dm_dct_fenkuai.m
  
  
  ..............\laugh-single-1.bmp
  ..............\laugh-single-3.bmp
  ..............\laugh-single.bmp
  ..............\laugh-single_256.bmp
  ..............\lena.bmp

 Downloaders recently:  wangfeng012316 kang699 www.qu.wen [More information of uploader blacksnown]

 To Search: DCT matlab attack matlab 2d dct transform 8x8 blocks 

 [VQmatlab.rar] - VQ method of speaker recognition matlab code for vector quantization¸Õ½Ó´¥novice ready
 [image_block.rar] - several image block to block image mosaic, and the reduction of small images of practical procedures
 [dsss222.rar] - Using matlab for Direct Sequence Spread Spectrum Communication System Simulation and Analysis of bit error rate PN code synchronization methods and si

 [lsb.rar] - LSB embedding algorithm using hidden images, can be generalized to set up modified LSB bit-plane and returned to the bit error rate and peak signal to
 [PSNR.rar] - Function: This function will be completed on the input image of the peak signal to noise ratio calculation
 [mirror_sys.rar] - mirror of the sys-driven part of the structure than the DDK on a bit more our own things. For reference.
 [wmark.zip] - Animated images will be converted to the type of YUV type, and detect images PSNR
 [matlab-baseddigitalwatermarkingtechnologyrese] - Research and Implementation of the algorithm and the correct procedures for matlab