Description: 自己本机测试最快时60帧/秒,局域网传输只测试一次,结果很让我失望,原因不明~~~~
说下我的思路过程(我认为过程很重要!)
分块比较+压缩传输与以前那个内存流比较的优缺点:
内存流比较能找到最精确的找到图片差异,但每次都要压缩相同大小的数据,大家可以测试下,那个算法传输瓶颈是压缩算法,最费时间和CPU
分块比较+压缩传输能有效的减少压缩数据量,但缺点也很明显,比较图片的效率肯定没内存流比较高,要加快传输只能找到更好的算法
我选择的是后者,开始的时候是直接把截下来的图片分成n块,然后逐块和上一个图片比较,不同就放到流中压缩传送,不过写完测试时很是郁闷,Cpu占用不说,在自己电脑上根本就突破不了16帧,当时就苦想能节约时间的方法(当时做梦都在想^.^),终于在一次被吵醒后来了灵感,每次都要把图片分成n块,这也很占时间啊,有没有更好的办法呢?觉也睡不着了...
具体实现就看代码吧^_^-Their own tests of this machine, when the fastest 60 frames/sec, LAN transmission test only once, the result will let me down, for reasons unknown ~ ~ ~ ~ wrote down my thought process (I think the process is very important!) Compared+ block compression and transmission compared with the previous flow advantages and disadvantages of that memory: Memory stream more able to find the most accurate picture to find differences, but the same size every time compressed data, we can test, that algorithm is a compression algorithm transmission bottlenecks, the most time-consuming and Comparison of CPU Block+ compression and transmission can effectively reduce the amount of data compression, but the disadvantage is also apparent, comparing the efficiency of the picture, certainly not the memory stream is relatively high, to speed up the transfer can only find a better algorithm Platform: |
Size: 590848 |
Author:高速屏幕传输演示代码 |
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Description: 是一个基于LZARI算法的数据压缩的类.Haruhiko Okumura 于1989年7月4日用c语言写实现了这个算法.但是上面用到了一些全局或静态的变量,在MFC下用起来很不方便.我把它改写成了一个c++类,使它可以方便的压缩和解压缩,更重要的是,我新增加了两个接口,这个类可以压缩/解压缩一段内存缓冲区,而不仅仅是文件.
一共提供了5个对外接口:
-Is a data compression algorithm based on LZARI class. Haruhiko Okumura 1989 July 4 daily c language to write algorithms to achieve this. But to use some of the above global or static variables, in the MFC under inconvenient to use them. I rewriting it into a c++ classes, so that it can easily compress and decompress, but more importantly, I added two new interfaces, this class can compress/decompress a memory buffer, rather than the file. a total of provides a five external interface: Platform: |
Size: 146432 |
Author:lfc |
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Description: 最新版7zip源代码，给适合的朋友们，本人正在寻找zip压缩算法，纯C语言，希望得到大家的帮忙，谢谢！-The latest version of 7zip source code, to appropriate friends, I am looking for zip compression algorithm, a pure C language, want to get everyone' s help, thank you! Platform: |
Size: 1222656 |
Author:lizhudong |
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Description: Python使用的lzo压缩算法，可以在python下实现lzo算法的压缩，对内存等数据进行压缩-Python use lzo compression algorithm can achieve lzo algorithm python compression, data compression for memory, etc. Platform: |
Size: 13312 |
Author:miller |
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Description: 迷你lzo算法库，用于实现内存、图像、磁盘文件等数据的压缩，是一种非常快的压缩算法。-Mini-lzo library of algorithms, used to implement the memory, images, data, such as disk file compression, is a very fast compression algorithm. Platform: |
Size: 26624 |
Author:miller |
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Description: java版的lzo算法库，用于实现内存、图像、磁盘文件等数据的压缩，是一种非常快的压缩算法。-java version of the lzo library of algorithms, used to implement the memory, images, data, such as disk file compression, is a very fast compression algorithm. Platform: |
Size: 36864 |
Author:miller |
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Description: wKdm算法源码，用于实现内存、图像、磁盘文件等数据的压缩，是一种非常快的压缩算法。-wKdm algorithm source code, used to implement the memory, images, data, such as disk file compression, is a very fast compression algorithm. Platform: |
Size: 3072 |
Author:miller |
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Description: jpeg图像压缩算法 附简单介绍 VC环境下运行-jpeg image compression algorithm is attached to a brief run under VC Platform: |
Size: 33089536 |
Author:danny |
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Description: Matlab矢量量化图像压缩程序
矢量量化VQ，是一个常见的压缩技术。Linde, Buzo, and Gray 提出了基于
训练序列的Vector Quantization (VQ)算法。-Matlab vector quantization image compression procedures for vector quantization VQ, is a common compression technology. Linde, Buzo, and Gray proposed based on training sequence of Vector Quantization (VQ) algorithm. Platform: |
Size: 47104 |
Author:adu |
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Description: Matlab矢量量化图像压缩程序
矢量量化VQ，是一个常见的压缩技术。Linde, Buzo, and Gray 提出了基于
训练序列的Vector Quantization (VQ)算法。-Matlab vector quantization image compression procedures for vector quantization VQ, is a common compression technology. Linde, Buzo, and Gray proposed based on training sequence of Vector Quantization (VQ) algorithm. Platform: |
Size: 47104 |
Author:adu |
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Description: matlab 小波图像压缩算法的代码实现，很有用，有问题希望大家提出共同交流促进-matlab code for wavelet image compression algorithm implementation, very useful, there are problems and share their hope that we propose to promote! ! Platform: |
Size: 2503680 |
Author:James_Cheung |
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Description: MPEG 7压缩算法资料。IEEE标准。
相关会议资料如果。英文描述，对图像压缩感兴趣的可以下载之。-MPEG 7 data compression algorithm. IEEE standard. If the information related meetings. English description of the image compression may be interested in downloading. Platform: |
Size: 3793920 |
Author:boss liu |
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Description: Huffman s compression algorithm implemented in JavaScript.
2009-06-02
implemented Huffman s compression algorithm in JavaScript. Here is a wiki link describing what Huffman coding is:
http://en.wikipedia.org/wiki/Huffman_coding
My working example:
http://tom-ash.net/blogs/Programming/huffman_coding.html
And its source code without the alerts is attached Platform: |
Size: 1024 |
Author:sandra |
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Description: 论述了经典的道格拉斯—普克压缩算法,分析将其应用于多边形边界数据压缩所<br>造成的图形失真现象,提出了一种增强型道格拉斯—普克压缩算法,并用实际的MapInfo 矢量数据来检核该<br>算法的可靠性。-Discusses the classic Douglas- Puck compression algorithm, the analysis applied to the boundary polygon graphics data compression, distortion caused by the phenomenon, proposed an enhanced Douglas- Puck compression algorithm, and use the actual MapInfo vector data to review the nuclear to the algorithm. Platform: |
Size: 148480 |
Author:zhuang |
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Description: Lzw字典压缩解压缩算法，lzw算法简单但压缩效果并不比haffman算法差。现在用途也很广泛-Lzw dictionary compression decompression algorithms, lzw algorithm is simple but not higher than compression algorithm haffman worse. Now is also very wide range of uses Platform: |
Size: 74752 |
Author:ada |
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Description: 本书主要讲述了Visual C++数字图像处理典型算法及实现。全书共12章，分别介绍了数字图像编程基础，图像感知与获取，图像的点运算，图像的几何变换，图像的正交变换，图像的增强，数字图像腐蚀算法、膨胀算法、细化算法，图像边缘检测与提取、轮廓跟踪，图像分割，图像配准，图像复原和图像的压缩编码技术等内容。对每种常用的数字图像处理方法，本书都提供了完整的源代码。
本书内容丰富，叙述详细，实用性强，适合于数字图像处理工作者阅读参考。 -This book tells the Visual C++ digital image processing algorithms and implementation of a typical. A total of 12 book chapters, describing the programming of digital images based on image perception and the acquisition, the image point operations, the image of the geometric transformation, the image of the orthogonal transformation, image enhancement, digital image erosion algorithm, expansion algorithm, refinement algorithm, Image edge detection and extraction, contour tracing, image segmentation, image registration, image restoration and image compression coding techniques and so on. For each common digital image processing methods, this book offer a complete source code. This book is rich in content, describing the detailed, practical, suitable for digital image processing workers to read for reference. Platform: |
Size: 5281792 |
Author:peggy |
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Search - compression algorithm