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本文提出了基于二维混沌映射的数字图像水印算法,混沌具有随机性、似噪声及对初始条件的极端敏感性等特点。将经过二维混沌映射置乱后的数字水印信号嵌入图像小波域的低频系数,实现了数字水印的隐蔽性、保密性和稳固性;利用二维混沌映射Arnold变换对水印信号进行置乱,不仅增强了水印信号保密性,同时有效提高了视觉上抵抗图像剪切攻击的能力。-In this paper, two-dimensional chaotic map based on digital image watermarking algorit
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用logisitic映射生成混沌密码流,对密码流排序后生成置换地址集合,用这个地址集合对图像像素点进行重新排列,从而达到置乱的目的。
-Chaotic maps generated by logisitic password stream flow sorting of passwords generated after the replacement address of the collection, use this address a collection of image pixe
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用Lorenz映射生成三维混沌密码流,对密码流排序后生成三个不同的置换地址集合,用这个地址集合对图像RGB三层的像素点分别进行重新排列,从而达到置乱的目的。逆向即可完成图像的恢复。
-Lorenz map is generated using three-dimensional chaotic password flow, flow sorting of passwords generated after the address of a collection of three differ
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基于混沌序列的二值图像加密算法:提 出了一种以混沌二值序列为基础的图像加密算法 , 改进了灰度差置乱度算法来评价二值图像加密
效果 , 最后对混沌序列对初始条件的敏感性、 相邻像素差置乱度、 图像加密/ 解密速度进行了大量测试。-Based on Chaotic Encryption Algorithm of Binary Image: A chaotic binary sequences with an image encryption scheme based on improved
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基于傅里叶变换的混沌图像置乱加密方法及其代码实现-Fourier transform based on chaotic image encryption and scrambling code implementation
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基于DCT变换,图像隐藏,混沌置乱,重复隐藏了要隐藏的信息。-DCT-based image hiding, chaotic scrambling, repeatedly hiding to hide information.
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:提出了一种新的基于混沌映射与排序变换的图像加密算法。混沌序列具有容易生成、对初始条件敏感以及具备白噪声的统计特性等优点。该算法利用混沌映射对初值的敏感性和伪随机性,通过对生成的混沌序列排序来得到图像置乱的地址变换码,由于排序的不规则性,因此新的混沌图像置乱算法具有较强的保密性能。通过对该算法的置乱性能分
析并进行仿真实验,结果表明,新算法具有良好的图像加密性能。-his paper presents a new encryption algorithm based on chaotic m
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彩色图像的arnold图像置乱和logistic混沌序列的图像加密程序matlab源码-Color image of arnold image scrambling and logistic chaotic sequence of image encryption program Matlab source
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用logisitic映射生成混沌密码流,对密码流排序后生成置换地址集合,用这个地址集合对图像像素点进行重新排列,从而达到置乱的目的。-Chaotic Cipher stream generated with logisitic mapped to generate replacement address password flow sorted collection, the collection of this address to rearrange the image pixels, so
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出一个基于扩散与位平面Amold映射相结合的彩色图像置乱,以及采用Chen系统产
生的混沌序列加密的图像加密算法。-A combination of diffusion bit plane Amold mapping based color image scrambling, and Chen system chaotic sequence encryption image encryption algorithm.
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基于忆阻器的混沌信号产生索引序列进行图像加密处理,实现图像像素置乱。-Based on the chaotic signal to produce the index of today sequence to encrypt the image processing, image pixel scrambling.
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基于henon映射的加密程序。首先生成混沌序列,利用henon映射生成两个长度为(M*N)/2的序列。其次,将混沌序列置乱。最后,异或运算:将初始图像进行排序变换,做异或运算,从而实现对初始图像的置乱加密,得到最终的加密图像。-Based henon mapping encryption programs. First generate chaotic sequence, using henon mapping generates two length (M* N) sequence/2. Se
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用混沌形成一个序列然后对图像进行排序置乱和异或加密处理,效果很好-Forming a chaotic sequence and then sort of image scrambling and XOR encryption process, with good results
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实现对图像的加密和解密,采用Arnold变换来实现图像置乱,和Logistic混沌映射来实现像素变换。-Realize image encryption and decryption, using Arnold transformation to achieve image scrambling, and Logistic chaotic mapping to implement a pixel conversion.
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基于蔡氏电路和Baker变换的图像加密,利用Baker变换实现图像置乱,蔡氏电路产生的三维混沌序列实现图像像素变换。-Chua' s circuit-based image encryption and Baker transformation, the use of Baker transform image scrambling, three-dimensional chaotic sequence generated Chua' s circuit implementation
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本代码实现了对高光谱遥感图像进行混沌序列置乱加密,其中包括读取三维立体遥感图像、混沌加密以及灰度直方图绘制-This code implements the hyperspectral remote sensing images chaotic sequence of scrambling encryption, including reading the three-dimensional sensing image, and histogram drawing Chaotic Encrypt
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Arnold是经过一定次数的置乱后图像变得杂乱无章,和原始图像已经完全不同,然而对于合法的用户,需要还原出原始图像(After a certain number of scrambling, the image becomes chaotic, which is completely different from the original image. However, for legitimate users, we need to restore the original image.)
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