http://www.aaronmr.com/en/2010/03/test/ Working on the project I've seen in the need for compression to capture images with a webcam from the robot, to send to the client application to visualize what he sees in order to control the robot remotely. T…
GD库已经是近乎于是现在主流PHP程序的标配了,所以也必须让Mac OS X中的PHP支持GD.在网上搜索了好多,最终按照这个方式成功实现,如何让Mac OS X支持PHP,请查看<让PHP跑在Mac OS X中>. 原文地址是:http://www.gigoblog.com/2008/10/08/install-gd-for-php-on-mac-os-x-105-leopard/这里全文转载如下,以防止被GFW和谐掉.在安装配置的时候需要注意几点:1.务必使用root用户来进行如何操作:2…
Index of contents Setting up the MinGW 64 environment Step 1) building libiconv Step 2) building libz Step 3) building libjpeg Step 4) building libpng Step 5) building libtiff Step 6) building libproj Step 7) building libgeotiff Step 8) building libg…
这段时间终于把手头的东西都搞完了,还剩下一个AEC这个模块,这个模块跟整个系统机制有很大关系,单独的模块意义不大. 另外,刚写完一个分类器,希望能大幅提升音乐流派分类的准确率. 下周正式开搞AEC,把之前做的一些事情记录一下. https://en.wikipedia.org/wiki/Dynamic_range_compression Downward compression reduces loud sounds over a certain threshold while quiet so…
This technique should apply to both normal video (consequtive sequences of pictures of real world) and animations (sequences of images drawn by human or generated by computer) This technique is supposed to perform better in lossy compression and by d…
传送门 time limit per test 4 seconds memory limit per test 256 megabytes input standard input output standard output Little Petya is now fond of data compression algorithms. He has already studied gz, bz, zip algorithms and many others. Inspired by the…
http://www.html5rocks.com/en/tutorials/speed/img-compression/ Types of compression algorithms There are generally two stages in an image compressor, a lossy phase, and lossless phase. Lossy compression algorithms will modify the source stream such th…
String Compression Time Limit:3000MS Memory Limit:0KB 64bit IO Format:%lld & %llu Submit Status Practice UVA 1351 Appoint description: System Crawler (2015-08-21) Description Run Length Encoding(RLE) is a simple form of compression. RLE c…
C. Table Compression Little Petya is now fond of data compression algorithms. He has already studied gz, bz, zip algorithms and many others. Inspired by the new knowledge, Petya is now developing the new compression algorithm which he wants to name d…
the file libjpeg.so.62(in /usr/lib/libjpeg.so.62)belongs to the package libjpeg62so try to reinstall(that shoud've already been installed) the package sudo apt-get install libjpeg62…
文件压缩主要有两方面的好处:一方面节省文件存储空间:另一方面加速网络数据传输或磁盘读写.当处理大规模的数据时这些效果提升更加明显,因此我们需要仔细斟酌压缩在Hadoop环境下的使用. 目前已经存在很多压缩格式.工具和算法,各有特点,如下图: 说明: a. DEFLATE是一种压缩算法,标准实现是zlib,尚没有命令行工具支持.一般情况下使用gzip,相对于DEFLATE而言有额外的头部和尾部.文件扩展名.deflate是一个Hadoop的约定. b. LZO文件经过预处理被索引之…
Name Description AES_DECRYPT() Decrypt using AES AES_ENCRYPT() Encrypt using AES COMPRESS() Return result as a binary string DECODE() Decodes a string encrypted using ENCODE() DES_DECRYPT() Decrypt a string DES_ENCRYPT() Encrypt a string ENCODE() Enc…