Search - matlab image

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[OS program] 数字水印 DL : 0: 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，尽量避免有损压缩对水印信息可能带来的损失。还有一种DCT方法就是把水印信息嵌入到高频系数上，但是采用这种方法，抗压缩性非常差。-done to the original signal DCT algorithm : Cox Piva and others made the DCT technology classic. Cox using random number generator producing standard normal sequence information as a watermark image of the overall DCT, DC coefficient selection removed outside some lower frequency coefficient superposition watermark information Piva will be replaced by images of the entire IF part. The original signal block, before making the DCT algorithm : Wu Hsu and put images 8* 8 block, a binary sequence as watermarks Add DCT IF; Some scholars calculated whole image of DCT, a real sequence embedded IF DCT coefficients. IF the choice is a good one to minimize the embedded information to the subjective visual images; Meanwhile, try to avoid Compression right watermark information possible losses. There
Date : Size : 33kb User : 圣子到
[Crack Hack] Arnold1 DL : 0: 用matlab实现的图像加密算法-基于Arnold变换的图像加密-using Matlab achieve image encryption algorithm-based Arnold Transform Image Encryption
Date : Size : 1kb User : 杨柯
[Crack Hack] NumberWaterMark DL : 0: 给定一副图像和一段文字，设计某种图象处理方法将这段文字隐藏到图像中-given a paragraph of text and image, image processing design some way to the wording of the hidden image
Date : Size : 563kb User : 胡雪飞
[Crack Hack] dct_2 DL : 0: 图象水印的一种基于dct的简单算法例子期望能对刚开始涉及数字水印的朋友有一点帮助-a watermark image based on a simple algorithm Extra examples can expect to start digital watermarking friends a little help
Date : Size : 1kb User : 李铎
[Exploit] houghsearchcircle DL : 0: 文件给出了matlab语言进行，对二值图像先用sobel 算子找出边缘，再用hough变换找出圆的圆心和半径的程序，并附图像和解释！-documents given Matlab language, the binary image segmentation using the operator to identify the edge then Hough transform to identify the center of a circle and the circle radius of the procedure, with images and explanation!
Date : Size : 13kb User : image
[Crack Hack] jiami-jiemi DL : 0: 自己编写的图像加密程序，要求下载人会用matlab，文件直接解压缩即可-prepare their image encryption procedures, requirements will be downloaded using Matlab, documents can be directly extracted
Date : Size : 1kb User : 刘流
[Crack Hack] doublerandomphaseencryptionofbiologytrait DL : 0: 这个程序用于图像的加密和隐藏，在加密过程中，将原来的图像加密成白噪声，使攻击者没有办法解密。此程序仅仅用于学术交流-procedures for the image of encryption and hidden in the encryption process, the original image encryption into white noise, allow an attacker not declassified. This procedure only for academic exchanges.
Date : Size : 1kb User : 肖海
[CA auth] Steganography DL : 0: 基于图象的数据隐写和提取matlab代码-image-based data extraction and steganalysis Matlab code
Date : Size : 9kb User :
[CA auth] Stegano DL : 0: steganography tools to hide a text file in an image in true colour.-steganography tools to hide a text file in a n image in true color.
Date : Size : 168kb User :
[Crack Hack] (MATLAB) DL : 0: 加密解密图象隐藏原程序(MATLAB) 注:用bmp图象加密JPEG图象-hidden image encryption and decryption of the original procedure (MATLAB) Note : bmp image encryption JPEG image
Date : Size : 1kb User : 郭凯
[Crack Hack] binaryextract DL : 1: 二值图像的信息隐藏，用到md5加密和改进后的置乱算法-Binary Image Information Hiding, use md5 encryption and improved hashing algorithm
Date : Size : 1kb User : guaiguai
[Crack Hack] PROGRAM DL : 0: This method is based upon the image hiding technic into another image using LSB algorithm called as Steganography.
Date : Size : 322kb User : R.P.Singh
[Crack Hack] upload3 DL : 0: Contains Rsa and program for magnification of a small image.
Date : Size : 3kb User : Allen Joseph R
[Crack Hack] watermark-image-text DL : 0: matlab code in watermarking techniques
Date : Size : 3kb User : krishna
[Crack Hack] 2222222222 DL : 0: 基于logistic图像加密的研究，是原本加密方法的改进-Study of image encryption based on the logistic
Date : Size : 576kb User : 风
[Crack Hack] steg1 DL : 0: this program steganographs an image into another image. however the host and the specimen are image equivalents of audio signals which are rearranged to form an image. thus effectively it is audio steganography
Date : Size : 504kb User : Abhishek Sharma
[OS program] Bibliographie_Chapitre5 DL : 0: matlab image coding for watermarking image
Date : Size : 8kb User : Robert
[Crack Hack] frft DL : 0: 这是离散分数傅里叶，传输2D的图像加密解密，还有密钥的加密解密-This is the discrete fractional Fourier, transmission 2D image encryption, as well as the encryption key to decrypt
Date : Size : 49kb User : IVY
[Crack Hack] imageencryption DL : 0: matlab image encryption source code
Date : Size : 255kb User : hanan
[OS program] matlab-exercise DL : 0: matlab图像处理的各种例题，帮助你了解图像处理所用到的函数与方法-matlab image processing examples to help you understand the functions and methods used in image processing
Date : Size : 16kb User : 岚昕

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