Search - matlab image

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[Compress-Decompress algrithms] xiaobo12 DL : 0: 二维小波分析图像压缩去掉高频部分,保留低频-2D image analysis wavelet compression to eliminate high-frequency, low-frequency reservations
Date : Size : 1kb User : xietian
[Compress-Decompress algrithms] litipipei DL : 0: 立体图像对编码的MATLAB实现程序。包含了匹配跟小波变换2种算法，经过调试，可以使用。且效果很好。-stereo image pairs of MATLAB coding procedures. Included with the matching two kinds of wavelet transform algorithm, after debugging, can be used. And the results very good.
Date : Size : 64kb User : tangli
[Compress-Decompress algrithms] SPIHT_bandelet DL : 1: 我写的基于bandelet域的spiht图像压缩算法。效果比经典的SPIHT好。文章已发，希望代码对大家有用。-I wrote bandelet domain-based SPIHT image compression algorithm. SPIHT is better than a good classic. Article has been distributed, I hope the code useful for everyone.
Date : Size : 1.75mb User : shawn
[Compress-Decompress algrithms] fayedpcm DL : 0: 本文是用线形预测编码对图像进行压缩，这种方法是中无损压缩-This article is a linear prediction coding of image compression, this method is in the lossless compression
Date : Size : 1kb User : fayegyf
[Compress-Decompress algrithms] Upload_EZW128 DL : 0: 零树编码用于１２８*１２８图象压缩算法，经典压缩算法，基于matlab开发平台-Zerotree coding for 128* 128 image compression algorithm, the classical compression algorithm, matlab-based development platform
Date : Size : 14kb User : 胡敏
[Compress-Decompress algrithms] compression DL : 0: 这是偶自己的作品拉，基于matlab环境，作的图象压缩实验，分别ＤＷＴ与ＳＷＴ作对比参照实验-This is the duality gap own work, based on the matlab environment, for the image compression experiments, DWT and SWT, respectively, compared with reference to experimental
Date : Size : 16kb User : 胡敏
[Compress-Decompress algrithms] matlabcompress DL : 0: 使用二维离散余弦变换(DCT)进行图象压缩。原始图象被转换成为8*8大小的块进行压缩和重构。 Cnum:为压缩时保留的系数的个数 MSM:均方误差压缩应该做到在最合理的近似原图象的情况下使用最少的系数。函数：dctmtx:返回一个n*n阶DCT变换 blkproc:对图象进行不同的块处理。 im2col:重排图象块为矩阵列。注意：只适用于灰度图象。-The use of two-dimensional discrete cosine transform (DCT) for image compression. Original image is converted to become the size of 8* 8 block compression and reconstruction. Cnum: reservations for the compression factor of the number of MSM: mean square error compression should be done in the most reasonable approximation of the original image using the least coefficient. Function: dctmtx: returns an n* n-order DCT transform blkproc: image processing of different blocks. im2col: rearrangement of the matrix block out images. Note: only applicable to grayscale images.
Date : Size : 3kb User : hff
[Compress-Decompress algrithms] 3D-SPIHT DL : 0: 实现3D-SPIHT的压缩功能，使SPIHT的图像压缩应用在3维图像和video中-The realization of 3D-SPIHT compression functions SPIHT image compression used in 3-D images and video in
Date : Size : 8kb User : 朱里
[Compress-Decompress algrithms] quantize DL : 0: 一个MATLAB编的图像编码中的量化小程序,希望大家看了有用-A series of MATLAB Image Coding quantify small procedures, hope that we read useful
Date : Size : 1kb User : LL
[Compress-Decompress algrithms] image_compress DL : 0: 本程序利用奇异值分解对3通道彩色图像进行压缩分解，具体步骤如下：压缩过程： 1. 选取子图像大小K值，把图像分解成M×M个子图像，IMG(s),s=1,2,…, M2，其中M=N/K，原始图像IMG大小为N×N。 2. 计算这M2个子图像的平均值average，对每幅子图像减去均值图像得到新图像。 3. 计算相关矩阵R，其元素定义为。 4. 计算R的特征值与特征向量，计算每幅子图像与最大特征向量的内积，便得到编码，即压缩后的图像。 -This procedure using singular value decomposition of 3-channel color image compression decomposition, concrete steps are as follows: compression process: 1. Select the sub-image size K value, the image is decomposed into M × M sub-image, IMG (s), s = 1, 2, ..., M2, in which M = N/K, the original image IMG size N × N. 2. M2 calculate the average of sub-image average, for each sub-image minus the new images mean images. 3. Calculation of correlation matrix R, defined as its elements. 4. Calculation of the characteristics of R value and eigenvector calculated each sub-image with the largest eigenvector of the inner product, they will have to code, that is, the compressed images.
Date : Size : 327kb User : wangweiming
[Compress-Decompress algrithms] graydct DL : 0: 一个比较简单的图像压缩的方法程序不太长 -A relatively simple method of image compression process is not too long
Date : Size : 3kb User : yh
[Compress-Decompress algrithms] Imagecompressionandsolutioncompression DL : 0: 一张图片是之前用摄像机采集的，另一张图片是经过离散沃尔什变换再量化编码压缩后又解压所得，能看出区别吗？呵呵。flik.m是原图，newflik.m是新图。附上所有MATLAB源程序，有兴趣的话，你也可以用这几个程序对自己的照片“加工”一番。以下6个程序分别保存为6的m文件，文件名与下面给出的一致。待“加工”图片应该存放在Matlab的Work目录下。-Before a picture is collected by the camera, another picture is the result of discrete Walsh transform and then re-quantization coding compression decompression income, you can see the difference? Ha ha. flik.m is the image, newflik.m is a new map. MATLAB source code attached to all interested, you can also use these procedures on their own photo processing of something. The following six procedures were saved as 6 m file, the file name is given with the following consensus. To be processing picture should be stored in Matlab s Work directory.
Date : Size : 1kb User : 余海风
[Compress-Decompress algrithms] jpeg DL : 0: 一个简单对图象进行JPEG图像压缩算法。希望对大家有所帮助-A simple image to JPEG image compression algorithm. I hope all of you to help
Date : Size : 1kb User : yangmengling
[Compress-Decompress algrithms] AdvanceJPEG-LS DL : 1: 改进的JPEG-LS算法，具有运算速度快、压缩比高等优点，可用于遥感图象的压缩。-Improved JPEG-LS algorithm, with a computing speed and high compression ratio can be used in remote sensing image compression.
Date : Size : 132kb User : 吴天
[Compress-Decompress algrithms] 10c1 DL : 0: image compression matlab code
Date : Size : 5.2mb User : 陳至中
[Compress-Decompress algrithms] matlab_read_idx-ubyte DL : 0: 做手写阿拉伯字体识别时候需要用到图像数据文件。这时可以从http://yann.lecun.com/exdb/mnist/网站上下载数据源文件。这个程序可以很方便地将源文件读到matlab工作区间中去。-Arab make handwriting fonts needed to identify when the image data files. At this time http://yann.lecun.com/exdb/mnist/ site can be downloaded from the data source file. This procedure can be easily read the source file interval in matlab to work.
Date : Size : 1kb User : 刘洋
[Compress-Decompress algrithms] 2007202131 DL : 0: Date : Size : 10kb User : 王云云
[Compress-Decompress algrithms] ActualJPEG DL : 0: 用离散余弦变换实现JPEG编码，从而实现对图像无损进行压缩传送-Realize using discrete cosine transform JPEG encoding, in order to achieve lossless compressed image transmission
Date : Size : 153kb User : 陆波
[Compress-Decompress algrithms] Actual_JPEG DL : 0: EZW，如多级树集合分裂算法(SPIHT),集合分裂嵌入块编码(SPECK),可逆的嵌入小波压缩法(CREW)等.本文对这些算法从原理到性能进行了比较和讨论,说明了嵌入式图象编码的研究方-EZW, such as multi-level collection of split tree algorithm (SPIHT), set to split the embedded block coding (SPECK), reversible embedded wavelet compression method (CREW) and so on. In this paper, these algorithms from the principle to the performance are compared and discussed to illustrate the embedded Study type image coding side
Date : Size : 72kb User : 华生
[Compress-Decompress algrithms] JPEGtuxiangyasuo DL : 0: JPEG图像压缩及解压适用于MATLAB -JPEG image compression and decompression for MATLAB
Date : Size : 73kb User : wengbinbin

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