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zhdct2
- 这个程序是根据离散余弦变换的公式实现的DCT变换程序，能够帮助初学者理解离散余弦变换的过程。-This procedure is based on discrete cosine transform DCT-formula implemented procedures to help beginners understand the discrete cosine transform process.
shuiying
- 由于二维DCT变换是对数字图像矩阵而言的，所以对于RGB位图不能进行DCT变换我在这里先将它转换成灰度图像再把水印嵌入到灰度图像中来进行基于DCT变换的图像水印研究。-As the two-dimensional DCT transform on the digital image matrix is concerned, therefore, for the RGB bitmap should not be DCT Transform I first convert it into gray
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
watermarked
- 基于彩色图像实现的DCT变换域图像数字水印算法。-Color images based on the realization of the DCT transform domain image watermarking algorithm.
DCT_JPEG
- DCT_JPEG是JEPG标准的基本工作模式，采用DCT变换为变换核-DCT_JPEG is JEPG standard basic working model, using the DCT to transform nuclear
2-D_DCT
- 实现对灰度图进行分块儿，并对每一块进行DCT变换，得到每一个DCT系数的变化范围，然后重建灰度图。-This program is aimmed to devided the gray-scale image into many blocks,then do DCT to each block and get the DCT coefficients.Then reconstruct the gray-scale image using the inverse DCT.
dct
- DCT图像压缩：此源代码变换域系数选取采用区域编码，通过非零区域的选择，呈现不同的恢复效果-DCT image compression: This source code transform domain coefficients using the selected coding region, by choosing a non-zero area, showing the effect of different recovery
DCTyuzhi
- DCT变换：变换域系数选取采用阈值编码，：阈值越小，图像恢复效果越好，但压缩效果差，一般取在5-10 即可很好的获得恢复图像信息。-DCT transform: transform domain coefficients selected using the threshold coding: the smaller the threshold value, the better the image restoration, but the compression is poor, and ge
DCT
- 求取一段由加速度传感器获取的加速度序列信号的离散余弦变换-For the discrete cosine transform for a period of acquisition by the acceleration sensor of acceleration signal
离散余弦变换（DCT）
- 离散余弦变换（DCT）及其C++实现 定义：离散余弦是一种基于实数的正交变换 基本算法 快速算法 程序说明
BmpToJpgJpgToBmp
- 实现jpeg压缩和解压缩,将彩色图像进行颜色空间转换、对不同的颜色分量进行不同的采样、对于3个分量进行8×8的DCT变换、对DCT系数矩阵按照JPEG推荐的量化表进行量化；对量化后的系数进行Z形扫描，最后进行熵编码，形成码流，计算比特数，和压缩比。解压从量化后的DCT系数表开始逆向进行-Jpeg compression and decompression, the color image is a color space conversion, the different color compo
dct8x8
- 全流水线1维8点DCT变换，用于JPEG编码，无乘法运算,verilog-Full-line one-dimensional 8-point DCT, for JPEG encoding, no multiplication
DCTyinxie
- 图像的DCT变换域的隐写matlab程序代码-DCT transform domain image steganography matlab code
KLDCT_Markov
- 用于现代信号分析与处理课程，作用是实现K-L变换和DCT变换。-For modern signal analysis and processing programs, the role is to achieve the KL transform and DCT.
KLDCT_img
- 用于现代信号分析与处理课程，作用是实现K-L变换和DCT变换。-For modern signal analysis and processing programs, the role is to achieve the KL transform and DCT.
dct
- DCT离散余弦变换用于人脸识别，识别率高于PCA-DCT discrete cosine transform for face recognition, the recognition rate is higher than PCA
ShowBit
- c++实现的数字图像处理程序，包括平移，剪切，锐化，模糊，傅里叶变换，dct变换等-c++ implementation of digital image processing procedures, including pan, cut, sharpen, blur, Fourier transform, dct transform
YINPIN
- 利用dct变换，，以及LSB置换，将水印信息嵌入到音频信号中-use dct and lsb,make the watermark embedding the vedio
fft-dct
- 用VC实现的，对图像进行离散余弦变换和快速傅里叶变换，利于学习数字图像处理-With VC' s, the image discrete cosine transform and fast Fourier transform, conducive to learning digital image processing
shipingshuiyinbeifen
- 该算法利用随机置乱的方法将水印信息进行置乱，对选定的视频帧先进行DWT变换，然后对得到的逼近子图进行DCT变换，最终将置乱后的水印信息嵌入到直流分量-The algorithm uses the method of random scrambling the watermark information is scrambling to be first selected video frames DWT transform, and then the resulting approximatio