搜索资源列表
cs-code
- 一个正弦波利用DCT，FFT变换后稀疏化，然后应用压缩感知实现压缩，并有仿真图例说明重构效果。重构算法采用线性规划和OMP算法等，是一个初学CS入门的好例子。-A sine wave using DCT, FFT transform sparse, and then apply compressed sensing to achieve compression, and a legend reconstruction simulation results. Reconstruction algo
FFT
- 对图像进行离散余弦变换处理，包含FFT，DCT-On discrete cosine transform image processing, including FFT, DCT
DCTsourcecode
- 在视频编码中常用的一种变换,离散余弦变换[DCT].此程序用C语言编写成源码,并经调试通过.-The DCT is the commonly transform.The program is compile by c language.
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
efficientchannelestimationbasedondiscretecosinetra
- 论文中提出了了一种适用于正交频分复用的基于离散余弦变换（DCT）变换导频辅助的信道估计法。这种方法可以减小基于离散傅里叶变换（DFT）的信道估计器中的混叠效应-Presented a paper suitable for orthogonal frequency division multiplexing based on discrete cosine transform (DCT) transform the pilot aided channel estimation. This meth
apfft_fir_filter
- 离散余弦变换(DCT)具有优于傅里叶变换、哈尔变换等正交变换的高度解相关性-apfft fir filter design
DCT_DFT_FFT(matlab)
- 无限长的序列也往往可以用有限长序列来逼近。对于有限长的序列我们可以使用离散傅立叶变换（DFT）。DFT是对序列傅立叶变换的等距采样。是序列傅立叶变换的等距采样。 本源码是对DCT、DFT、FFT的matlab实现-Infinitely long sequence is often a long sequence with limited approximation. For the finite length of the sequence we can use the discrete F
MATLABjpeg
- 基于DCT离散余弦变换的JPEG数字图像压缩MATLAB程序。-Discrete cosine transform DCT-based JPEG image compression MATLAB.
DCTmatlab
- 变换编码的matlab实现，主要有DCT编码等-Matlab implementation Transform Coding
matlab
- 各种数字水印的matlab源代码，DCT，小波变换等。-Various digital watermarking matlab source code, DCT, wavelet transform.
CoxMwk_UY
- 基于dct（离散余弦变换）的matlab程序代码-Based dct (discrete cosine transform) of the matlab code
Untitled
- 对frame1进行一个简化的帧内编码方案: A)将图像分为8x8的块. B)将图像每一块做DCT2变换. C)将DCT系数采用11.ppt page 35的亮度量化表量化. 量化系数 = 取整 (DCT系数./量化表). D) 统计整个图像中非零量化系统的比重, 该比重可反映什么? E) 将量化系数进行 IDCT2, 绘制出重建图像.-a example for matlab to deal with a picture
MATLAB-Image-changing
- MATLAB图像变换源码，包括CWT、DCT、DFT和DWT。-Matlab image from source code, including cwt, dct, dft and dwt.
horizontal-and-vertical-derivative
- 利用离散余弦变换求取重力或磁异常的水平与垂直导数，简单实用。-using the DCT transform to calculate the horizontal and vertical derivatives of potential-field anomaly.
gezhongyasuo
- 多种视频压缩算法，包括霍夫曼编码，算术编码dct，jpeg，小波变换-A variety of video compression algorithm, including Huffman coding, arithmetic coding DCT, jpeg, wavelet transform
fftw-3.2.tar
- 西方快速Fourier变换。FFTW是计算离散Fourier变换（DFT）的快速C程序的一个完整集合，它可计算一维或多维、实和复数据以及任意规模的DFT。FFTW还包含对共享和分布式存储系统的并行变换。FFTW由麻省理工学院计算机科学实验室超级计算技术组开发。 -FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions, of arbi
jnd
- 计算DWT小波变换的JND值（恰可察觉性失真），用于图像水印的实现。以及DCT的水印实现-Calculate the DWT wavelet transform value of JND (Just Noticeable Distortion) for the image watermark. As well as the watermark of the DCT
dental_xray
- ：数字水印技术作为数字媒体版权保护的有效办法，近年来在国内外引起了人们极大的兴趣。作者采用了DCT离散余弦变换的算-: An effective means of digital watermarking technology as a digital media copyright protection, both at home and abroad in recent years caused a great deal of interest. The author uses the di
HSDCTcode
- 心音信号的DCT域变换压缩编码，LLoyld最佳量化与霍夫曼编码，利用心电R波进行分帧，在不到1 左右失真度的情况下达到了6.0以上的压缩比-Heart sound signals on DCT transform coding, LLoyld optimal quantization and Huffman coding, the use of ECG R wave sub-frame, less than about 1 in the case of distortion to achie
transform-coding
- 对于变换编码的知识介绍，包括DCT,DHT,HARR,KLT,并对不同变换的性能做了对比-For transform coding knowledge presentation, including DCT, DHT, HARR, KLT, and the performance of different transform to do a comparison