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此为基于二代提升小波的阈值压缩算法源码，其中可以设置小波变换的分解层数，使用的小波名称，及各层阈值设置计算公式中的参数。并将低频系数转化为十六进制，方便在其上进一步压缩，如采用Huffman压缩等，程序思路清楚，附有完整的注释，可以使用多种小波，并且很好得体现了二代小波的思想，对于初学小波者帮助很大。-based on the second generation of this upgrade wavelet compression algorithm threshold source, which can set wavelet transform decomposition level, the use of wavelet name, threshold levels and set the formula for calculating the parameters. And low-frequency coefficients into hexadecimal facilitate its further compression, such as the Huffman compression. procedures ideas clearly, with the integrity of the Notes, you can use a variety of wavelet, and reflected very well in the second generation wavelet thinking, For beginners who wavelet of great help.

数据库 是 用 jsp 语言 所编写-database was prepared by the language jsp

实现哈夫曼的编码和译码，适用于各种图像格式。-Realize Huffman encoding and decoding for a variety of image formats.

lz77算法原代码，压缩比率20 ~90 .-lz77 algorithm for the original code, compression ratio 20 ~ 90 .

输入8个字符（数目可以自己设定，需要改动程序中N的值），注意空格也算字符，然后输入权值，会显示构造的霍夫曼树及每个字符的编码-Encode：enter 8 characters，then enter 8 numbers，this program will print the huffman tree and each char s code.

难得找的到的全部HDMI　1.3最新规范书-Rare to find all the latest HDMI 1.3 specification

对.bmp图像进行离散余弦变换，包括测试图像。-On. Bmp image discrete cosine transform, including the test images.

tcp文本传输，客户端，服务器端，简单实现！-tcp HTTP, client, server-side, simple to achieve!

四个小车运动在主窗口中运动，点击运动按钮可以运动，单击停止按钮，可以停止-Four cars move in JPanel

【文本与二值图像的游程】1. 文本游程压缩的原理 对重复字段采用3符号标识法：(1) 重复提示符,比如@,#等；(2) 游程长度参数或重复次数,若用一个字节表示,最大长度可为255个重复字；(3) 重复字符。以上三部分合称为重复因子。可见要获得压缩效益，重复字符应在3个以上。2. 图像游程压缩的原理 对于二值图像，原始数据为零一矩阵，压缩时逐行处理该矩阵：(1) 连续n个1，表示为+n；(2) 连续n个0，表示为-n。-text and binary image-- an outbound trip. Yu Cheng text compression principle on repeated field using three symbols logo Act : (a) repeat prompt, such as @,#, etc.; (2) Run-length parameters, or the number of repeat, if using a byte, the largest the length of 255 to repeat the word; (3) repeat characters. More than three as part of a repeat factor. Visibility to gain compression efficiency, duplication of characters in three more. 2. Run-image compression for the principle of two binary images, a zero original data matrix, progressive compression deal with the matrix : (1) n a row, n; (2) consecutive n 0, expressed as-n.