Description: 根据奇异值分解的基本原理及其特点，给出了运羽奇异值分解进行图像压缩的方法．通过简单的例子说明了该方法进行图像压缩的基本过程，给出了压缩流程．并通过MATLAB编程对实际图像进行处理，表明了该方法的有效性．-Singular value decomposition in accordance with the basic principles and characteristics are given plume transported singular value decomposition for image compression method. Through simple examples to illustrate the methods of the basic process of image compression, the compression process is given. Through MATLAB programming deal with the actual images shows the effectiveness of the method. Platform: |
Size: 181248 |
Author:liulei |
Hits:
Description: 一种新的基于matlab环境的用SVD原理实现图像压缩的源程序，程序简单易懂-Implementation of new image compression using SVD, the program easy to understand Platform: |
Size: 6144 |
Author:国华 |
Hits:
Description: 本文提出一种在原始视频DCT(离散余弦变换)与SVD(奇异值分解)域自适应嵌入水印的算法。算法首先将视频流分割成一个个场景,场景中的视频图像被变换到DCT-SVD域中,水印量化嵌入在最大奇异上,实现了水印盲检测。同时实验证明该算法在满足透明性要求下也满足一定的鲁棒性要求,能够抵抗低通滤波、中值滤波、椒盐噪声、高斯噪声、H.264压缩攻击以及统计攻击和帧剪切等攻击。-This paper presents an original video in the DCT (Discrete Cosine Transform) and SVD (singular value decomposition) algorithm for adaptive watermark embedding. Firstly, a video stream is divided into scenes, scenes of the video image is converted to the DCT-SVD domain, the watermark embedded in the largest singular quantification, the realization of the watermark signal. Furthermore, the experiments show that the algorithm meet the transparency requirements are met under certain robustness requirements, can resist the low-pass filtering, median filtering, salt and pepper noise, Gaussian noise, H.264 compression attacks and attacks and frame shear statistics attack. Platform: |
Size: 63488 |
Author:久久 |
Hits:
Description: 一系列展示图像压缩技术的源代码。包括有：使用块截断编码的图像压缩(Block Truncation)、基于高斯金字塔变换的图像压缩(Gaussian Pyramids)、基于离散余弦变换对图像压缩(Discrete Cosine Transform)、基于奇异值分解(SVD)的图像压缩(Singular Value Decomposition)。给出的代码还可以用于2D图像噪声消除。-Image Compression
A collection of simple routines for image compression using different techniques.
BTCODE:
Image compression Using Block Truncation Coding.
PYRAMID:
Image compression based on Gaussian Pyramids.
DCTCOMPR:
Image compression based on Discrete Cosine Transform.
IMCOMPR:
Image compression based on Singular Value Decomposition.
The given codes can be also used in 2D noise suppression.
Notes:
The function "conv2fft" performs a 2D FFT-based convolution.
Type "help conv2fft" on Matlab command window for more informations. Platform: |
Size: 56320 |
Author:依米 |
Hits:
Description: SVD Source Code, realized on MATLAB
Image Compression is the application using Linear Algebra tools Platform: |
Size: 120832 |
Author:mahendra |
Hits:
Search - svd in image compression matlab