代码搜索：JPEG工具、DCT系数、matlab
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www.eeworm.com/read/308919/13687410
txt 原理.txt
数字图像处理DCT是数字图像处理中的一种重要处理手段，被广泛地用与图像的压缩编码算法中，已有的各种成熟的压缩标准如JPEG，MPEG，H.26X以及HDTV等都无一例外地采用基于DCT/IDCT的压缩编码。离散余弦变换（Discrete Cosine Transform）是一种最主要的正交变换。它将图像信号从空间域变换到DCT域,保持原始信号的熵和能量不变,却使得DCT域系数之间的相关性减弱,然后 ...
www.eeworm.com/read/420161/10812800
m jpeg_dct.m
function jpeg_dct(I,z)
% I=imread('football.jpg');%读入原始图像，该图片在安装matlab的目录中找，原图为jpeg图象
Y=im2double(I);%图像存储类型转换
T=dctmtx(8);%离散余弦变换矩阵
B(:,:,1)=blkproc(Y(:,:,1),[8 8],'P1*x*P2',T,T');
B(:,:,2)=blkp
www.eeworm.com/read/207543/15268910
opt dct_jpeg.opt
www.eeworm.com/read/207543/15268914
dsp dct_jpeg.dsp
# Microsoft Developer Studio Project File - Name="DCT_JPEG" - Package Owner=
# Microsoft Developer Studio Generated Build File, Format Version 6.00
# ** DO NOT EDIT **
# TARGTYPE "Win32 (x86)
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plg dct_jpeg.plg
Build Log
--------------------Configuration: DCT_JPEG - Win32 Debug--------------------
Command Lines
Creating temporary file "d:\temp\LOCALS~1
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dsw dct_jpeg.dsw
Microsoft Developer Studio Workspace File, Format Version 6.00
# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE!
###############################################################################
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ncb dct_jpeg.ncb
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cpp dct_jpeg.cpp
#include
#include
#include
#define MX 8
const double PI=asin(1)*2.0;
int *Addx=NULL;
struct MAT
{
int row,col;
double **pn;
};
/*************************/
bo
www.eeworm.com/read/272132/10969075
ppt dct与jpeg编码.ppt
www.eeworm.com/read/167073/9981035
h dct.h
void Dct(
Word16 *dct_data , // 输入原始数据
Word16 *Dct_Coef // DCT系数
) ;