Description: 著名的cox数字水印算法源代码,使用matlab编写,很有用噢!-famous cox digital watermarking algorithm source code, the use of Matlab prepared very useful Oh! Platform: |
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Description: 用matlab实现的有一个数字水印程序,它也是基于dct算法的数字水印程序,对一副图像进行dct变换然后嵌入水印-using Matlab is a realization of the digital watermarking procedure, which is based on the A1501 digital watermarking algorithm procedures, a pair of images Extra Transform then embedded watermark Platform: |
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Description: 著名的cox数字水印算法源代码,使用matlab编写,很有用噢!-famous cox digital watermarking algorithm source code, the use of Matlab prepared very useful Oh! Platform: |
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Description: 该目录包含了基于可移植的C语言的数字水印算法的代码。这些代码具有示范
性的意义,且有一定的鲁棒性。
需要安装NetPGM的程序包(用来存取pgm格式图像),然后才能在linux下面编译。
NetPGM是图像文件的输入/输出软件包。可以在网上搜索得到。我们已经对
256灰度级,512×512大小的图像进行了测试。程序编译后的调用格式如下(以encode为例):
wm_cox_e -s cox.sig -o wm_image.pgm image.pgm
其中,-s表示要添加的水印信号,cox.sig是信号文件。
-o表示输出图像文件名为wm_image.pgm,
image.pgm为输入文件名。
几个辅助程序:
cmp_pgm 计算差分图像,PSNR等
cmp_dct 计算全帧DCT域的差分图像
cmp_dct8x8 计算8×8大小的DCT域差分图像
比如说,为了产生两个PGM图像的差分图像并计算它们的PSNR,命令如下:
cmp_pgm -p -i original.pgm -o diff.pgm watermarked.pgm
产生水印信号:
gen_cox_sig -o cox.sig
程序将产生适合512×512大小,8-bit灰度的pgm图像的水印信号。
水印提取:
wm_cox_d -s cox.sig -i lena.pgm -o cox.wm cox_lena.pgm
请注意,cox的算法需要原始图像做参考来提取水印,压缩后的水印将存储在cox.wm中。-This directory contains the C-based portable digital watermarking algorithm code. The code has a demonstration
Of meaning, and there is a certain degree of robustness.
NetPGM need to install the package (to access the pgm format images), and then to compile in linux below.
NetPGM is the image file input/output package. Can search by. We have already
256 gray level, 512 × 512 size images were tested.
Procedure call format, compiled as follows (in encode an example):
wm_cox_e-s cox.sig-o wm_image.pgm image.pgm
Which,-s that you want to add the watermark signal, cox.sig is the signal file.
-O said output image file name wm_image.pgm,
image.pgm for the input file name.
Several auxiliary programs:
cmp_pgm calculate the difference image, PSNR, etc.
cmp_dct full frame DCT domain calculation of difference image
cmp_dct8x8 calculate the size of 8 × 8 DCT domain differential image
For example, in order to produce two PGM images and calculate their differ Platform: |
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Description: 著名的cox数字水印算法源代码,使用matlab编写,很有用噢!,-Famous cox digital watermarking algorithm source code, the use of matlab, very useful oh! Platform: |
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Description: 著名的cox数字水印算法源代码,使用matlab编写,很有用噢!,-Famous cox digital watermarking algorithm source code, the use of matlab, very useful oh! Platform: |
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Description: 著名的cox数字水印算法源代码,使用matlab编写,很有用噢!,-Famous cox digital watermarking algorithm source code, the use of matlab, very useful oh! Platform: |
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Description: 著名的cox数字水印算法源代码,使用matlab编写,很有用噢!,-Famous cox digital watermarking algorithm source code, the use of matlab, very useful oh! Platform: |
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Description: Famous cox digital watermarking algorithm source code, the use of matlab, very useful oh! Platform: |
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