Description: 图象处理及分形图象压缩是针对真彩(24位色)BMP图象进行简单处理和能够进行分形图象压缩的程序.分形图象压缩采用了固定分块和四叉树的方法,小波零树编码的方法还有问题.
图象处理部分对图片大小没有要求,分形图象压缩部分对图片大小有要求,大小应是2的次方幂(例如大小应是128*128,256*256,512*512等等),否则在菜单上看到的图象压缩里子菜单是灰的,不起作用.
-image processing and fractal image compression is against True Color (24-bit color) BMP images and can handle simple fractal image compression process. Fractal Image Compression with a fixed block and quadtree method EZW coding method is problematic. Image processing part of the picture size no, fractal image compression part of the picture size requirements, should be the size of the two-power (such as size should be 128* 128* 256* 512, etc.), or else on the menu to see the image compression Lane submenu is the gray, ineffective. Platform: |
Size: 210944 |
Author:王晶 |
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Description: 图象处理及分形图象压缩是针对真彩(24位色)BMP图象进行简单处理和能够进行分形图象压缩的程序.分形图象压缩采用了固定分块和四叉树的方法,小波零树编码的方法还有问题.
图象处理部分对图片大小没有要求,分形图象压缩部分对图片大小有要求,大小应是2的次方幂(例如大小应是128*128,256*256,512*512等等),否则在菜单上看到的图象压缩里子菜单是灰的,不起作用.
-image processing and fractal image compression is against True Color (24-bit color) BMP images and can handle simple fractal image compression process. Fractal Image Compression with a fixed block and quadtree method EZW coding method is problematic. Image processing part of the picture size no, fractal image compression part of the picture size requirements, should be the size of the two-power (such as size should be 128* 128* 256* 512, etc.), or else on the menu to see the image compression Lane submenu is the gray, ineffective. Platform: |
Size: 210944 |
Author:ltt |
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Description: 通过阅读这份文档,能够对 JPEG 图形压缩有一定感性的认识, 但其数学原理不需要搞清. 能够通过这, 开始写自己的编码/解码程序. 或者看懂以有的代码. 对有损图形压缩有进一步了解.自己能够改良 JPEG, 比如增加透明色的支持, 加快 JPEG 的解码速度.
-By reading this document to JPEG image compression to a certain emotional understanding, it does not need to understand the mathematical principles. through this, begin to write their own encoding/decoding process. or to read some code. graphics compression harmful to the further understanding. own JPEG can be improved, such as increasing transparency color support and accelerate the speed JPEG decoders. Platform: |
Size: 10240 |
Author:赵小花 |
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Description: 一种实用的数字图像压缩方法解振东，章三妹(成都理工大学信息工程学院，成都610059)摘 要：提出以C++Builder 6．0为开发平台，以其所提供的TJPEGImage为核心，实现真彩色图像的压缩，为工程实际的应用提供了一种非常实用的压缩手段。该方法减少了大量程序代码的编写工作。实验表明，当综合压缩比设为65时，压缩图像与原图像相比并无明显变化，由此可见，压缩效果令人满意。-a practical method of digital image compression solutions Zhendong, Chapter Sanmei (Chengdu University of Technology and Information Engineering College, Chengdu 610059) Abstract : C Builder 6.0 development platform to the provision of core TJPEGImage to achieve true color image compression. for the practical application provides a very practical means of compression. The ways to reduce the large number of code-writing. Experiments show that when integrated compression ratio is set to 65 hours, compressed images compared with the original image and no noticeable change, it can be seen that Compression satisfactory. Platform: |
Size: 269312 |
Author:ghostsx |
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Description: image compression using btc algorithm. matlab program. This function accepts an image(color or gray) and compresses it using the block truncation coding. -btc using image compression algorithm. Ma tlab program. This function accepts an image (c olor or gray) and compresses it using the block t runcation coding. Platform: |
Size: 1024 |
Author:jason.. |
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Description: 用MatLab实现图像压缩。以真彩图像的处理为例，对由它转换来的彩色索引矩阵进行二进小波多层分解，对低频近似的系数矩阵作相应的截取处理，以及优化索引图像的彩色图。-Realize image compression using MatLab. To deal with true color images for example, by its conversion to the color index matrix dyadic wavelet decomposition of multi-storey, low-frequency approximation of the coefficient matrix for the corresponding interception treatment, as well as the optimization of image color map index. Platform: |
Size: 446464 |
Author:郝鹏翼 |
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Description: 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. Platform: |
Size: 334848 |
Author:wangweiming |
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Description: 各种数字图像处理的算法及编程实现源码。主要内容包括：位图基础、图像的显示、图像的几何变换、图像灰度变换、图像的平滑处理、图像锐化处理及边缘检测、图像分割及测量、图像的形态处理学、图像的变换域处理及应用、图像的合成、24位彩色图像的处理、图像的小波变换和JPEG图像的压缩编码。-A variety of digital image processing algorithms and programming source code. The main contents include: basis bitmap, image display, image geometric transformation, image transformation, image smoothing, image sharpening and edge detection, image segmentation and measurement, image handle the form of science, image transform domain treatment and application, image synthesis, 24-bit color image processing, image of the wavelet transform and JPEG image compression coding. Platform: |
Size: 11997184 |
Author:邓玥琳 |
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Description: 彩色图像分形压缩，由R,G，B中确定一个R块与D块的匹配位置，其他二原色只需在同一个D块位置匹配即可，只改变对应的亮度和偏移量即可，比SFC的方法节省时间。-Fractal color image compression, by the R, G, B defined in a R Block and D Block matching location, the other two primary colors just in the same location matching block D can only change the corresponding brightness and can offset than SFC method to save time. Platform: |
Size: 611328 |
Author:鞠金玲 |
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Description: 基于DCT变换的图像压缩，分别给出了灰度图和真彩图的压缩方法。-DCT-based image compression, respectively, are given grayscale and true color pictures of the compression method. Platform: |
Size: 1024 |
Author:秦关 |
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Description: 里面包含有所有的matlab下的运行程序 还有相应的计算需要的图像 非常全面 另外图像压缩的源码大多集中在灰度图上,此源码是基于彩色图像的-Which contains all of the matlab run the program under the corresponding calculation also requires a very comprehensive image of the source code for other image compression are mostly concentrated in grayscale, this source is based on the color image Platform: |
Size: 611328 |
Author:韩玉兰 |
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Description: 利用DCT变换和哈德曼编码实现对彩色位图的压缩，并可求得图像压缩前后的差值。-Use DCT transform and Hardman Coding compression of color bitmap, and the difference obtained before and after image compression. Platform: |
Size: 8155136 |
Author:lu |
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Description: The efficiency of perceptual coding in compressing color
images relies on the estimation of perceptual redundancy.
In this paper, a color image coder is proposed for perceptually
lossless image compression which shapes the coding
error as a part of perceptual redundancy. The perceptual
redundancy inherent in each pixel of a color image is
estimated in terms of a triple of values, one for each color
channel, as a detection threshold for distortion. Platform: |
Size: 266240 |
Author:SKP |
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Description: 彩色图像的压缩与解压的程序，网上关于图像压缩的程序基本上是黑白图像的压缩，我参考别人黑白图像压缩的源码改写出了彩色图像的压缩与解压的程序，里面包括色域的转换、DCT变换等-Compression of color images online image compression and decompression program, the program is basically a black and white image compression, my reference to the others black and white image compression source rewrite a color image compression and decompression program, which includes the gamut of conversion,DCT transform Platform: |
Size: 561152 |
Author:琦琦 |
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Search - color image compression