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dctblock
- 数字水印的嵌入和检测，dct， 作者Mao Li Purpose:an algorithm to achieve the embeding watermarking to a image by dct bloking and hvs,then detect the watermarking by comparability. -digital watermark embedding and detection, Copy, the writer Mao Li Purpose
ssim_index
- Zhou Wang proposed a new idea of Structural Similarity Index (SSIM )for image quality measurement based on the assumption that the HVS is highly adapted to extract structural information from the viewing field. The Mean Structural Similarity Index (M
598752watermark
- 水印嵌入(小波，dct,lsb)实例都有-watermarking emding
dwprotected
- 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 an
psnrhvsm
- HVS based image quality metric
815889771HVS
- 这个代码描述了人类视觉系统的几个特性，希望能够对大家有帮助，共同进步！-This code described several characteristics of human visual system, the hope can to help, make progress together!
DCT--watermark
- DCT域算法大都是根据图像信号不同频段的特性提出的。从理论上讲，任何频段都可以利用，但在不同的频段调制出的水印却有着不同的特性。DCT域的自适应水印算法，利用HVS将图像的灰度和反映图像纹理的块均匀度作为基准，确定水印的强度。根据强度掩蔽特性和纹理掩蔽特性，使得水印强度能够自适应于原始图像。-DCT-watermark method