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数字图像处理算法
- 数字图像处理：先进行傅里叶变换，然后低通滤波；最后还原。并附有余弦变换对照结果。,DIP:first FFT,then Butterworth filter,last inverse the course,also the DCT for comparition.
DCT
- 基于稀疏表示的inpaint去水印，部分代码，请安装sparse toolbox....欢迎下载-Camera self-calibration matlab source code, documentation and multi-view geometry ~ ~ and welcome to download the package ....
matlab
- 使用matlab的gui界面实现图像缩放旋转功能，FFT，DCT，等图像变化变换，并绘出直方图-Use the matlab gui interface for image scaling rotation, FFT, DCT, and other changes in the image transformation, and draw the histogram
JPEG.rar
- 图像JPEG压缩算法，由8*8DCT变换，调用量化表进行量化，最后由Huffman编码完成算法,JPEG image compression algorithm, the 8* 8DCT transform, quantization table calls to quantify, and finally completed by the Huffman coding algorithm
dct_cs
- 采用BP算法来实现压缩感知的信号重构示例。BP算法由线性规划来实现，稀疏基为DCT基，信号为语音信号-an example of using BP algorithm for signal reconstruction in compressed sensing. BP algorithm is implemented by linear programming, sparse basis is the DCT basis, the signal used is speech
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.
a
- 用MATLAB编写的DCT变换程序，包括快速DCT变换，内含测试文件lena256.img-DCT transform program using MatlaB
19854796watermarking
- 武汉大学信息隐藏实验实现源代码 各种隐藏算法dct变换，小波变换，MD5算法等-Wuhan University Experimental realization of information hiding all kinds of hidden algorithm source code dct transform, wavelet transform, MD5 algorithm
test_dct
- 本程序是在VC++编译环境下，用纯C语言编写的2D-DCT变换，程序中用的是一个4*4的矩阵进行的变换，可以改为对一幅图像进行。运算结果正确，在Matlab中进行了检验，dct2()指令即进行DCT变换。有一定的参考价值。-This procedure is in VC++ compiler environment, written in pure C 2D-DCT transform, the program used is a 4 x 4 matrix for the transformat
jpeg
- 对JPEG的压缩标准进行了仿真，主要过程DCT压缩，根据JPEG的量化矩阵对DCT结果进行量化，对量化结果进行Huffman编码。同时也实现了解压缩过程，即执行上述过程的逆过程。-JPEG compression standard of the simulation, the main process of DCT compression, according to the JPEG quantization matrix to quantify the results of the DCT,
MATLAB
- dct低通滤波 对于数字图像处理的入门例程再好不过了 其中对滤波器的波形给了三位图像-dct transform
information-hiding
- 采用MATLAB实现图像信息隐藏。将文本信息，通过DCT和LSB算法嵌入到二维图像中实现信息隐藏。-hide information into voice signal with the methods of DCT and LSB
12345
- 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
- 数字信号处理实验，DCT图像压缩，内含有matlab实验m文件以及实验报告，供大家参考。-Digital signal processing experiment, DCT image compression, contains matlab experiment m documents and the experiment report for your reference.
ch2
- 第2章 信号变换 67 2.1 Z变换及MATLAB实现 67 2.1.1 Z变换的定义 68 2.1.2 Z变换的收敛域 68 2.1.3 Z逆变换 70 2.1.4 Z变换的性质 72 2.1.5 Z变换的工程应用 74 2.2 Chirp Z变换及MATLAB实现 77 2.2.1 Chirp Z变换的定义 77 2.2.2 Chirp Z变换的计算方法 79 2.2.3 Chirp Z变换的MATLAB实现 80 2.3 离散傅里叶变换及MAT
KLaDCT
- KL变换和DCT变换比较分析 在matlab环境下的比较仿真-KL&DCT
DCTwatermark
- 基于MATLAB的DCT域数字水印技术实现相关代码实现详细说明-MATLAB-based DCT-domain digital watermarking technology to achieve detailed descr iption of the relevant code
dct
- 用MATLAB实现图像的离散余弦变换，程序运行结果表明离散余弦变换能够起到压缩图像的目的。-in order to compress the bite of pictur,the program use the DCT to compress.
watermark
- Matlab实现多种水印的嵌入与提取(DFT DCT等)-Matlab to achieve a variety of watermark embedding and extraction (DFT DCT, etc.)
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).