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LSB和DCT信息隐藏的MATLAB实现
- 实现了LSB信息隐藏和DCT域信息隐藏
基于dct离散余弦变换的matlab音频水印
- 基于dct离散余弦变换的matlab音频水印添加源代码。
workingjpeg.zip
- JPEG DCT based baseline method which divides the image into 8x8 blocks and quantize anthen entropy coded.,JPEG DCT based baseline method which divides the image into 8x8 blocks and quantize anthen entropy coded.
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
- 利用matlab实现基于DCT变换的变焦距图像融合-Using matlab to achieve DCT-based image fusion Zoom
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.
dct
- 这是用matlab写的dct代码用于图像的信息的隐藏和提取。。部分老师写的哦。-This is used to write the DCT matlab code for the image and extract the hidden information. . Oh part of the Writing Teacher.
DCT
- 图像的基于8*8分块的DCT变换编码 MATLAB编程环境 -Images based on 8* 8 block of DCT transform coding MATLAB programming environment
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
- 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
598752watermark
- 水印嵌入(小波，dct,lsb)实例都有-watermarking emding
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
dct-fft
- This the Discrete cosine tranform matlad code which is useful for image compression and also it show-This is the Discrete cosine tranform matlad code which is useful for image compression and also it show
SVD-DCT_Image_watermarking
- This is the matlab code for SVD-DCT image watermarking
dctn
- 3d or more dct implemntation
dct
- extract file and the working is to get dct matrix of 256*256 image which is divide into each 8*8 image block
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-MATLAB
- 利用DCT变换对灰度图像进行压缩，求出压缩比；对比不同压缩比的图像。-DCT transform using grayscale image compression, the compression ratio obtained compare different compression ratio of the image.