搜索资源列表
shuzishuiyindeng
- 基于LSB图像隐藏系统的设计与实现，LSB算法代码，信息隐藏攻击算法，DCT域的隐藏以及数字水印。-LSB based image hiding system design and implementation, LSB algorithm code, information hiding attack algorithm, DCT hiding and digital watermarking domain.
dct_cs
- DCT压缩感知方案，采用DCT基稀疏分解原始信号，并且重构出原始信号-DCT compressed sensing scheme, using sparse decomposition of the original DCT-based signal and reconstruct the original signal
DCT
- 用matlab对一张图片进行DFT变换，DCT变换,比较保留20个DCT变换系数重构的图象与原始图像的差别.-Using matlab on a picture to DFT transform, DCT transform, compared to 20 DCT transform coefficients to retain the image reconstruction of the difference between the original image.
DCT
- 实现图像的DCT高通、低通滤波器并与傅里叶变换做比较.有图可见，经DCT低通滤波后，图像变得很模糊。因为DCT是FFT取其实部，能量减少，因此图像变得很模糊，没有经FFT滤波后的效果好。 经DCT高通滤波后的图像： 经DCT高通滤波后，图像的低频部分被滤除掉，图像变黑，只有边缘的痕迹可见。-The DCT of image high-pass, low pass filter and compared with the Fourier transform.
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- 彩色数字水印的程序，实现在彩色图像中通过DCT变换来嵌入水印信息-Color digital watermarking process to achieve the color image by DCT transform to embed watermarks
DCT
- 基于Matlab GUI的图像的DCT，自由调节压缩率，计算峰值信噪比，并图形化对比还原图像-Matlab GUI for image-based DCT, freely adjust compression rates, the peak signal to noise ratio, and reduction of image contrast graphic
DCT
- 将图象分块(8*8)，作DCT变换，并作IDCT：DCT是一种可分离图象变换，用来图象压缩编码，IDCT用来解压缩。-The image sub-block (8* 8) for the DCT transform, and to make IDCT: DCT is a separable image transformations, is used to image compression coding, IDCT is used to decompress.
DCT
- 采用离散余弦变换DCT，通过MATLAB实现数字水印（包括水印的嵌入和盲提取）。- Uses discrete cosine transformation DCT, realizes the digital watermark through MATLAB (including watermark inserting and blind extraction).
dct
- 基于matlab编写的dct数字水印程序，文件包括有源程序以及简单的说明等-DCT matlab prepared based on digital watermarking procedures, documentation, including source code, as well as simple descr iptions
dctformatlab
- 在matlab环境下实现dtc变换，以用于图象压缩以及处理-in the matlab ，get the DCT transform
DCT_Qutization_watermarking
- 用matlab实现的DCT水印处理，并附有图像显示。-Matlab implementation of the DCT with watermark treatment, together with image display.
598752watermark
- 水印嵌入(小波，dct,lsb)实例都有-watermarking emding
ToolBox
- matlab图像处理工具相，使用了主成分分析，ANN，SVM等方法。-This toolBox used in the image processing(feature extraction and classification) PCA,LDA,ICA,DCT,RBF,RBE,GRNN,KNN,minimum distance,SVM, and others
DCT
- 一个有关DCT的matlab程序，采用分块的思路-DCT-a matlab program, the idea of using block
EasyWaterMarkingCodes
- 数字水印的入门代码，包括LSB DCT CDMA DWT,在原有收集上加了详细的注释，易于学习理解-Watermarking entry code, including LSB DCT CDMA DWT, add in the original collection of detailed notes, easy to learn to understand
dct_y1_zuizhong1
- matlab 数字图像压缩 DCT实现，matlab本身有demo 但这里加固一下-digital image processing using matlab， enjoy yourself
pinp
- matlab 频谱分析演示，居于DCT的-spectrum analysis using matlab，base on the dct
graydct
- DCT给灰度图像加二值的水印信息，运行显示四幅图，分别是原图像，水印图像，加水印的图像和提取的水印图像-DCT to gray image plus two watermark values, run the show four maps are the original image, watermark image, add watermark image and extracted watermark image
DCT音频数字水印
- 音频数字水印数字水印技术是一种信息隐藏技术，所谓音频数字水印算法，就是将数字水印通过水印嵌入算法，嵌入到音频文件中（如wav，mp3，avi等等），但是又对音频文件原有音质无太大影响，或者人耳感觉不到它的影响。相反的又通过水印提取算法，将音频数字水印从音频宿主文件中完整的提取出来，而这嵌入的水印，和提取出来的水印，就叫音频数字水印。
MATLAB数字水印[GUI,dwt,dct,lun文]
- 该课题为基于MATLAB的数字水印系统。包括离散余弦DCT和小波变换DWT两种算法的对比，有一个GUI界面，包括嵌入，加噪，旋转，剪切，压缩等多种攻击，提取候，具有评价指标PSNR,NC等来评价算法的鲁棒性(This project is a digital watermarking system based on MATLAB. It includes the comparison of DCT and DWT. It has a GUI interface, including embedd