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mine
- 利用C、C++或者MATLAB对一张照片进行DCT和DFT变换,并进行简要分析。 比较保留20个DCT变换系数重构的图像与原始图像之间的差别-Use C, C++ or MATLAB to carry out a photo on the DCT and the DFT transform, and a brief analysis. Comparison of retention of 20 DCT transform coefficients of image reconstructio
digital_image_process_matlab_codes
- 用matlab对照片进行频域变换,并进行简要分析比较DCT、DFT、WH等方式重构的图像与原始图像之间的差别,并写出报告-use matlab to perform the frequence transform and use DCT/DFT/WH to rebuild the picture, analysis the difference and report
Transforming
- 运用MATLAB语言,对于给定的图片,做DFT,DCT等各种变换,并进行压缩-The use of MATLAB language, for a given picture, do DFT, DCT and other transforms, and compression
assign3_m100295cs
- a) On sample artificial, 8X8 / 16X16 images, take the DFT, DCT, WT, & HT. Print the image & transform matrix side by side b) Repeat the above on real images of size 256X256, and display the transform coefficients as 8-bit intensity images along
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.
DCTDFT
- 代码完成二维DCT和DFT对图形的变换和重构,子窗口为8*8-The code can make two dimensional DCT and DFT graphics transformation and reconstruction, the sub window is 8*8.
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
dct-dft-fft-dst
- DFT, FFT,DST, DCT and many
dct-dft-wmaaking
- 数字水印嵌入和提取算法 包含时空域和变换域的算法的matlab实现-Airspace and transform domain algorithm matlab achieve the digital watermark embedding and extraction algorithm contains
dct-dft--dwt
- 基于Matlab的压缩感知DCT、DWT、DFT正交基及过完备字典稀疏分解信号及重构-Matlab-based compression perception DCT, DWT, DFT orthogonal basis and complete dictionary signal sparse decomposition and reconstruction
ICEIC2006_hybridarchitecture
- This paper proposes a hybrid architecture algorithm for fast computation of DCT and DFT via recursive factorization. Recursive factorization of DCT-II and DFT transform matrix leads to a similar architectural structure so that common architec
labprogram-dsp
- LAB program for Mtech semester 1 for Modern DSP lab,linear convolution, circular convolution, auto/cross correlation, DFT,DCT,FIR and IIR filters
dft
- 最简洁的DFT变换示例代码,对DFT的c语言实现有很大帮助,代码简洁-Simple DFT source code for VisualC++ 2010, and interpreted DCT
ar-kalman
- LMS、LMS/DFT、LMS/DCT、卡尔曼滤波、AR谱分析和小波变换的程序-Program LMS, LMS/DFT, LMS/DCT, Kalman filtering, AR spectral analysis and wavelet transform
dft
- 其中dft.m 是通过该程序同时输出图片1,2的R、G、B三通道的DFT正反变换图、相角图、幅度图,图片1,2的彩色DFT正反变换图以及DFT后图片1,2幅度相位信息置换后的彩色结果图。 dct.m是通过该程序显示“实验室用原图像”中的图片3的R、G、B三通道DCT正反变化对比图,变换系数图以及彩色DCT正反变换图。 compress.m是通过该程序输出图片3的保留n个DCT变换系数重构彩色结果图。需要说明的是其中决定保留系数个数n的mask矩阵需要手动更改。-Wherein
DFT
- 一个DFT变化程序,可以实现图像的DFT变化,并且能够显示DFT域图像-A DCT transform program, you can achieve DFT change the image, and the image can be displayed DFT domain
ntt
- 本次研究主要内容是对音频信号进行数字水印加密技术的分析,数字水印技术作为保密技术的一种形式,将具有特殊含义的数据信息嵌入到数字媒体中,以达到对数字媒体进行辨识、标记和版权保护的目的。主要介绍几种水印的嵌入方法:相位法、回声法、时域方法、频域方法、小波域变换等。-Digital audio watermarking is nowadays gaining popularity among the original audio content producers. It provides a w
digital-signal-processing
- 实现一个数字信号处理的仿真系统 。要求具有界面并实现以下功能: 1)能产生(得到)并选择各种数字信号(sin、方波、三角波、语音、噪声及其叠加); 2)具有DFT、DCT和小波变换和经典功率谱估计功能; 3)具有设计IIR和FIR低通、高通、带通滤波器功能; 4)能显示时域和频域波形,演示输入信号经过系统得到输出信号过程及频域特性和时间序列。 -Implement a simulation system of digital signal processing. It
project1
- matlab的图像dct以及dft变换和反变换(MATLAB image DCT and DFT transform and inverse transform)
huffman coding
- 利用霍夫曼编码进行图像压缩处理,此程序为霍夫曼编码的示例(The performance of a Huffman code is a function of the entropy of the signal distribution and therefore can be highly dependent in the transform domain in which the code is applied. For example, JPEG partitions an image