Description: 有一个机遇DCT域的数字水印算法，里面有详细的注释说明，可以拿来研究-This is a DCT watermarking algorithm attached with detailed comments and explanation, which can be used for research purpose. Platform: |
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Author:符号 |
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Description: 一个基于dct变换的数字水印算法的源程序,可供进行数字水印学习和研究的学生及科研工作者学习参考-DCT-based digital watermarking algorithm transform the source code, available for study and research of digital watermarking students and researchers to study the reference Platform: |
Size: 191488 |
Author:王晓华 |
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Description: Matlab source code for DCT-based watermarking for grayscale images. DCT-based watermark recovering without resorting to the uncorrupted original image. Digital watermarking has been proposed as a viable solution to the need of copyright protection and authentication of multimedia data in a networked environment, since it makes possible to identify the author, owner, distributor or authorized consumer of a document.
A new watermarking technique to add a code to digital images is presented: the method operates in the frequency domain embedding a pseudo-random sequence of real numbers in a selected set of DCT coefficients. Watermark casting is performed by exploiting the masking characteristics of the Human Visual System, to ensure watermark invisibility. The embedded sequence is extracted without resorting to the original image, so that the proposed technique represents a major improvement to methods relying on the comparison between the watermarked and original images.
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Size: 98304 |
Author:omar |
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Description: 数字水印Linux系统下的实现
Peter Meerwald
Dept. of Scientific Computing, University of Salzburg-Watermarking source
version 0.4
* bug fixes
- wm_xia_{e|d}.c variable level uninitialized
- wm_zhu_{e|d}.c variable level uninitialized
- issue with random() vs. rand() and RAND_MAX in frid2_common.c
* added option to bruyn algorithm to disable block skipping
* added algorithm kim
version 0.3
* added nice manual/documentation
* added algorithms by Dugad, Wang, Zhu, Fridrich
* added Makefiles for Win32 plattform (mingw32)
version 0.2
* added contribution by Vassilis Fotopoulos (Piva s algorithm,
DCT, Hartley and subband domain)- see Fotopoulos/ subdirectory
* stuff moved to Meerwald/ subdirectory
* added Bruyndonckx, Corvi, Koch, Xia, Xie algorithms
version 0.1
* initial release
Peter Meerwald
Dept. of Scientific Computing, University of Salzburg
pmeerw@cosy.sbg.ac.at
http://www.cosy.sbg.ac.at/~pmeerw/Watermarking
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Size: 548864 |
Author:lunch |
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Description: 基于matlab DCT水印的源程序 供大家下载利用-Matlab DCT-based watermarking for you to download the source code use Platform: |
Size: 10240 |
Author:张红 |
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Search - source code for dct watermarking