对该图形进行振幅型双随机相位加密变换，得到原信息的加密灰度图；
Later, using amplitude-based double-random-phase transform, the enciphered gray scale figure is formed .
论证表明新方案的加密变换几乎是不可被破译的，整个系统的工作不会因部分秘密密钥的泄露而受到任何破坏。
Even though some secret keys of the system may be known, the security of this system is unlikely to be broken and thus secure communication may continue even in this event.
该方法在一定的量化标准下利用小渡变换提取图象的特征信息，通过混沌序列对其加密生成数字水印。
In this method, the original image 's feature is extracted by using wavelet transform and quantization. The feature information is changed into watermark by the chaotic sequence encryption.
提出一种利用变形分数傅里叶变换和双随机相位编码对图像加密的方法。
A new optical image encryption method using anamorphic fractional Fourier transform and double random phase encoding is proposed.
提出了一种利用不对称分数傅里叶变换和双随机相位编码对图像加密的方法。
A new optical image encryption method using dissymmetrical fractional Fourier transform and double random phase encoding was presented.
相比单纯使用幻方变换的加密方法，新方法有双重因素控制，有更高的安全性。
Comparing with the encryption method only using magic transformation, the new method has two controlling factors and is more secure.
借助数字签名的思想，对原始图像进行哈希变换，并用私钥对其加密。
Making use of digital signature, the original image is transformed by Hash function and is encrypted by their private key.
幻方变换加密数字图像，在某些迭代次数时会泄露原图像的信息。
Using the magic generating algorithms, some image information will be revealed in a digital image encrypted with magic transformation during the transforming process.
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。
Proposed a new algorithm of images scrambling based on the chaotic mapping and sort transformation.
讨论了一种以实数值混沌序列为基础，利用加密模板矩阵和排序变换，给出一种灰度图像的加密算法。
In this paper, a gray image encryption arithmetic based on chaotic sequences is proposed by taking advantage of the encryption template matrix and sort transformation.
首先由随机函数生成得到任意的不相等的混沌序列，以此序列作镜像变换后对信息进行置换而得到加密文件。
A random unlikeness chaotic sequence is created with random function. Mirror image transforms with this chaotic sequence, then the information is transformed to secret-code files by this sequence.
而且对于不同的图像，该评价方法能在一定程度上反映了所用的置乱变换在各个加密阶段的效果。
For different images, when some transformation is used, this appraisal method can reflect to some extent the scrambling effects in each encryption stage.
本文讨论了现有的置乱加密方式，并结合该方式的周期性，提出了一种置乱反变换恢复的方式。
This text discuss that place confusion to encrypt a method existingly, and combine the periodic of that method, put forward a kind of method that places confusion and anti- transformation to recover.
该技术可应用于全息图制作、彩色图像变换、光学图像加密、滤波器的制作、光学防伪等领域。
This system can be used in hologram producing, color image transform, optical image encryption, filter producing, optical anti-counterfeiting and other fields.
用约瑟夫变换来扰乱明文、增大密钥空间，提高了加密的安全性。
With Joseph transformation, this thesis disrupts the plain text, increasing the key space and improving the security of encryption.
为了提高图像加密的安全性，提出了一种多参数加权类分数傅里叶变换。
In order to increase the security of the image encryption, the weighted fractional Fourier transform with dilation parameter (PWFRFT) is proposed.
由于公开密钥采用大素数模运算，而加密和解密变换却采用相对较小的素数模运算，故系统实现比较方便，在微机上能够很容易实现。
Since the public keys use big prime modular operation and the translation of the encryption and decryption use smaller prime modular operation, so it is convenient to realize this system.
提出了一种利用不对称分数傅里叶变换和双随机相位编码对图像加密的方法。
A new optical encryption technique based on double random phase computer-generated hologram of asymmetry fractional Fourier transform is presented.
对于加密、签名次序可能产生的验证错误，使用XML签名的解密变换来解决。
The problem of validation error that is made by possibly incorrect sequence of XML-Encryption and XML-Signature is resolved by Decryption Transform for XML-Signature.
传统的光学加密方法分为两类，一种是基于联合变换相关器的加密方法，第二种是基于。
The traditional optical encryption methods are classified into two kinds, one is based on the joint transform correlator, the second is based on the matched filter.
基于多重菲涅耳衍射变换和相位密码板，设计了一种新的图像加密计算方法。
The new image encryption algorithm was proposed based on multiple Fresnel diffraction transforms and phase encryption masks.
本文基于三维整数拟仿射变换和四维混沌系统对图像加密。
In this paper, the symmetric image encryption scheme based on 3-d quasi-affine transformation over limited integer grids and 4-d chaotic map.
结合加密技术与图像处理算法，提出了一种类似于公开密钥体制的基于分块dct变换的数字图像自适应水印算法。
In this paper, a block based adaptive watermarking technique in DCT domain that is similar to the public key system is proposed in light of the cryptography technique and image processing technique.
本文则给出了基于位置和色彩的图象加密方法，还给出了三进制面包师变换和三进制面包师逆变换的定义。
Also image encryption based on places and colors are given. The definitions for Baker Transformation with triad system and its inverse are also given.
本文则给出了基于位置和色彩的图象加密方法，还给出了三进制面包师变换和三进制面包师逆变换的定义。
Also image encryption based on places and colors are given. The definitions for Baker Transformation with triad system and its inverse are also given.
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