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matlab_watermark
本文算法是将24 位真彩图的亮度分量分块
DCT ,然后利用DCT 量化系数的奇偶特性嵌入8
位灰度水印图,并通过PN 序列加密来保证水印的
安全性。算法中,将灰度图像转换为二进制数据
流,置乱后扩频调制,隐藏在宿主DCT 系数量化值
中,提取时不需要宿主信号,实现水印信号的盲提
取。(This algorithm is 24-bit true color pictures of the luminance component of block DCT, quantization DCT coefficients and then use the parity properties of 8-bit grayscale watermark embedding map, and through the PN sequence of encryption to ensure the security of the watermark. Algorithm, the gray image into binary data stream, scrambling after the spread spectrum modulation, hidden in the host DCT coefficient quantization values, the extraction does not require the host signal, the blind watermark extraction.)
- 2010-12-24 11:11:10下载
- 积分：1
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PSAR
i want code forr denoising
- 2015-02-26 17:14:52下载
- 积分：1
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Ant-colony-algorithm
人工蚁群算法，提供了一种高效的编程步骤。(Artificial ant colony algorithm, provides an efficient programming steps.)
- 2013-12-25 20:54:50下载
- 积分：1
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IMAGE
图像的matlab处理，包含图像的压缩，zigzag算法应用，图像加密，图像解密等(Matlab image processing, compression containing images, zigzag algorithm, image encryption, decryption image)
- 2015-04-16 10:19:44下载
- 积分：1
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demo_frenet
Fourier Transform in Mathlab
- 2021-04-07 09:49:01下载
- 积分：1
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mage-stabilization-technology
说明： 本文章主要是研究电子稳像一些技术的应用，挺有用处的(This article is to study a number of electronic image stabilization technology, quite useful)
- 2011-04-17 11:19:11下载
- 积分：1
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rutgers-lib-30991-PDF-1
lamb wave used for detection of damage
- 2014-08-25 14:55:22下载
- 积分：1
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Matlab-Num-Instante
Guide Lines to use Matlab in Portuguese
- 2014-12-15 04:30:06下载
- 积分：1
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alamouti-vs-no-diversity-vs-mrc
alamouti方案的误比特率仿真
包含无分集，发射分集(2Tx, 1Rx)，发射分集(2Tx, 2Rx)，MRC接收分集 (1Tx, 2Rx)的误比特率曲线
在matlab r2010b 中已运行通过。(alamouti program the mistakenly bit rate simulation contains no diversity transmitter sub-sets (2Tx, 1Rx) emission sub-set (2Tx, 2Rx) MRC receiving sub-set (1Tx, 2Rx) the incorrect bit rate curve matlab r2010b has run through.)
- 2012-11-04 10:51:52下载
- 积分：1
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emd
经验模态分解，依据数据自身的时间尺度特征来进行信号分解，给出本征函数。(Empirical mode decomposition, based on the data itself characteristic time scale for signal decomposition, given the intrinsic function.)
- 2013-12-19 13:24:45下载
- 积分：1
