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sswm
- cox方法展频水印matlab源码，对bitmap图像隐藏信息-frequency watermarking method Show Matlab source of bitmap images for hidden messages
uisp-20050207.tar
- Micro In-System Programmer Brief Installation Notes Enter the src directory. If uisp does not compile successfully, add switch -DNO_DIRECT_IO in the Makefile to remove support for direct I/O port access (that may be necessary on non-PC
数字水印
- 对原始信号做DCT的算法：Cox 和Piva 等人提出的DCT技术的经典之作。Cox利用随机数发生器产生标准正态序列作为水印信息对图像进行整体DCT变换后，选取除去DC系数之外部分较低频率系数叠加水印信息 Piva则修改整幅图像的中频部分。对原始信号分块后，再作DCT的算法：Hsu和Wu 把图像进行8*8分块，将一个二进制序列作为水印放入DCT的中频区；有些学者则计算整个图像的DCT，把一个实数序列嵌入DCT的中频系数上。选择中频区的好处是一方面尽量减少嵌入信息对图像主观视觉的影响；同时，尽量避
544977-blp3e
- Linux程序设计（第三版） Neil Matthew, Richard Stones, Alan Cox 著 -Beginning Linux Programming (Third Edition) Neil Matthew, Richard Stones, Alan Cox 著
video_for_linux_two_API
- Video For Linux Two is the second version of the Video For Linux API, a kernel interface for analog radio and video capture and output drivers. Early drivers used ad-hoc interfaces. These were replaced in Linux 2.2 by Alan Cox’ V4L API,based on the
ip_input
- Commented a couple of minor bits of surplus code Alan Cox : Undefining IP_FORWARD doesn t include the code.