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zishiyingjiami
为了提高图像加密算法的鲁棒性,提出了一种新的自适应图像加密算法。首先,把任意大小的灰度或彩
色图像分成2 × 2 子块 然后,用左上角子块的像素灰度值和Chebyshev 混沌映射构造与右上角子块等大的矩阵,用该
矩阵对右上角子块进行像素灰度值替换 最后,按顺时针对每个子块进行加密,直到左上角子块加密完毕。该算法不
依赖于图像的大小,而且适用于灰度图像和彩色图像,因而有很强的鲁棒性。同时灰度值扩散机制的引入使得该算
法具有良好的扩散性和扰乱性。(This paper presented a new self-adaptive image encryption algorithm so as to improve its robustness. Under
this algorithm, a gray image or color image was divided into 2 × 2 size blocks. A corresponding size of matrix in the top right
corner was created by the pixel gray-scale value of the top left corner under Chebyshev mapping. The gray-scale value of the
top right corner block was then replaced by the matrix created before. The remaining blocks were encrypted in the same
manner in clockwise until the top left corner block was finally encrypted. This algorithm is not restricted to the size of image
and it is suitable to gray images and color images, which leads to better robustness. Meanwhile, the introduction of gray-scale
value diffusion system equips this algorithm with powerful function of diffusion and disturbance.)
- 2021-04-20 23:18:50下载
- 积分:1
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touqing_V4.1
完整的图像处理课设,包含所有源代码,汽车图像,包括轨道机动仿真、初轨计算,一个很有用的程序。( Complete class-based image processing, contains all of the source code, auto image, Including orbital maneuvering simulation, initial orbit calculation, A very useful program.)
- 2016-09-11 00:44:37下载
- 积分:1
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bfsk_m
bfsk系统仿真 bfsk系统仿真 bfsk系统仿真(bfsk System Simulation bfsk System Simulation bfsk System Simulation)
- 2007-07-17 15:21:20下载
- 积分:1
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huigui
回归算法,输出回归方程系数,平方和,剩余平方和等。(Regression algorithm, the output coefficient of the regression equation, sum of squares, residual sum of squares and so on.)
- 2011-05-03 00:59:15下载
- 积分:1
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echo-cancellation
移动通信领域中已广泛采用自适应回波抵消技术,自适应回波抵消算法是该技术的核心,算法的优劣直接影响自适应回波抵消效果,同时它对降低硬件复杂度和产品成
本也有特殊意义。文章对自适应回波抵消的NLMS算法、双端讲话(DT)的检测算法及后
处理的NLP算法进行了分析和讨论。
(nIhtemobileeonllnunieationdomani,adpativeeehoenaeellationhasbeen idelyusedwihthtealgorith ofadPativeehcoeancellationasitskeyteemlology.
Qualiytofalgorlthmwillhveadireeteeffetonhtereusltofeancellation,andgoodal-
goritmhswillreduce stemcomPelxiytandlwoerhtecostofproduct.Thepapergives
annaalysisonthekeyalgorithinofadPatveiechoenaeellationNLMS,algorithmof
doubleta deteetion,nadalgorithmofnonlinearPoreessnig.
)
- 2015-02-03 11:48:54下载
- 积分:1
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OFDM
【实例简介】
- 2021-09-20 00:30:57下载
- 积分:1
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MATLAB扩展编程by 孙永康
MATLAB扩展编程by 孙永康.ZIP.有需要的朋友请来下载.(MATLAB programming expansion by Sun Yongkang. ZIP. In need of a friend invited to download.)
- 2005-06-25 09:53:11下载
- 积分:1
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iir
Matlab code for image processing.
This code helps to remove noise from your image.
- 2011-02-22 17:49:50下载
- 积分:1
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mpcsimulink
说明: DMC动态矩阵控制算法DMC动态矩阵控制算法DMC动态矩阵控制算法DMC动态矩阵控制算法
- 2010-04-05 14:10:30下载
- 积分:1
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power_report
power scope simiulation
- 2010-04-12 18:19:19下载
- 积分:1