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dct.rar
- 已知两个不同图像块亮度数据如下： （1）分析DCT原理，采用DCT方法，编程并计算相应的DCT系数，分析系数分布特点。 （2）依据视觉特性分析量化表步长的分布特点，完成DCT系数量化。 （3）采用Z形扫描，实现输出数据的统计编码，形成Video stream。 （4）采用IDCT重建图像亮度数据，计算SAD大小，分析产生误差的原因及采用DCT进行数据压缩的原理。（ ） （5）分别利用左上角1、3、6个系数重建图像，计算相应的SAD，并由
DCT.rar
- 利用matlab的DCT2函数，对图像做变换并压缩。并用8*8对图像分块，对每一块计算均方值作为阈值。,DCT2 use the matlab function, and transform the image so compressed. And 8* 8 image block, a calculation of each mean square value as a threshold.
piccompress.rar
- 图像压缩编码，dct变换，量化， Z字形扫描 行程编码,Image compression, dct transform, quantization, Z-shaped scan length encoding
DCT
- 实现对一幅灰度和彩色图像作的离散余弦变换,选择适当的DCT系数阈值对其进行DCT反变换.-The realization of a piece of gray and color images for the discrete cosine transform, select the appropriate thresholds for DCT coefficients of its inverse transform DCT.
MATLAB
- dct变换 高通滤波 并带有原始图像 对于图像处理的初学者很实用-dct transform
DCT
- 利用matlab实现基于DCT变换的变焦距图像融合-Using matlab to achieve DCT-based image fusion Zoom
dct
- 这是用matlab写的dct代码用于图像的信息的隐藏和提取。。部分老师写的哦。-This is used to write the DCT matlab code for the image and extract the hidden information. . Oh part of the Writing Teacher.
JPEG
- 本文首先介绍了静态图像压缩（JPEG）编码算法的基本原理、压缩的实现过程及其重要过程的离散余弦变换（DCT）算法的实现原理及软件实现的例程，其次着重介绍了压缩过程中的DCT、量化和编码三个重要步骤的实现原理。-This paper describes the static image compression (JPEG) coding algorithm is the basic principle of compression process of the implementation pro
Dct
- 主要研究了彩色图像数字水印算法，在DCT域进行了水印的自适应嵌入和提取，并用Matlab进行了仿真实验，测试算法的性能-The main color image watermarking algorithm in the DCT domain adaptive watermark embedding and extraction, and with the Matlab simulation experiment to test the performance of algorithm
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.
DM642实现图像的编码
- DM642实现图像DCT变换，在经过压缩编码，达到压缩图像的目的。
DCT
- 基于Matlab GUI的图像的DCT，自由调节压缩率，计算峰值信噪比，并图形化对比还原图像-Matlab GUI for image-based DCT, freely adjust compression rates, the peak signal to noise ratio, and reduction of image contrast graphic
DCT
- 用于视频图像编码的8×8DCT变换，可用于MPEG4.H263等VHDL编程-For video images encoded 8 × 8DCT transform, can be used to MPEG4.H263 such as VHDL Programming
DCTWaterMarksMatlab
- DCT域图像水印算法的研究Matlab程序-DCT-Domain Image Watermarking Algorithm Matlab procedures
dct
- 实现图像压缩中的DCT变换，尤其是对于H.264视频标准中的DCT变换。-The realization of image compression in DCT transformation, especially for H.264 video standard DCT transform.
DCT
- ARM汇编，实现DCT算法，图像压缩，JPEG 需要loadmemory，里面附带load文件示例以及样子图片，raw格式-ARM compilation and realizing DCT algorithm, image compression, JPEG need loadmemory, incidental load inside sample documents, as well as look like picture, raw format
test3
- 编程实现基于8×8子块的DCT图像变换，基于JPEG量化矩阵的量化与反量化，基于8×8子块DCT的图像重建；以一幅512×512、8比特/象素的图像为实验对象，计算重建后的PSNR。-Programming based on 8 × 8 sub-block of the DCT image transform, quantization matrix based on the JPEG quantization and anti-quantitative, based on the 8 × 8
DCT
- 在MATLAB里，基于dct域,实现在二维图像中嵌入数字水印 并提取。-In MATLAB, the dct-based domain, the realization of two-dimensional images in the digital watermark embedding and extraction.
A_DCT_based_embedded_image_coder
- 基于DCT的嵌入式图像编码，是DCT图像编码的经典文章，由EZW算法启发而发表的此文章。-DCT-based embedded image coding, DCT image coding is a classic article, inspired by the EZW algorithm published this article.
dct
- 针对给定的静止图像进行DCT 变换 给定不同的阈值及将数据块中不同位置的值置为0所得到的不同情况下压缩-For a given static image DCT transform a given threshold and a different data block at different positions of a value of 0 has been compressed under different circumstances