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(利用GIF_LZW算法实现的)网络图片传输 技术特点 ~~~~~~~~ 一、使用TCP协议传输数据。理由:稳定性好。 二、使用字节数据流进行传输,理由: A:
(利用GIF_LZW算法实现的)网络图片传输 技术特点 ~~~~~~~~ 一、使用TCP协议传输数据。理由:稳定性好。 二、使用字节数据流进行传输,理由: A:VB的String存在自动Unicode转换问题,影响速度; B:可以直接发送8位字节数据,不需要使用Base64编码,从而减少了编码时间。 三、使用GIF-LZW压缩算法压缩图像。理由: A:行程编码、Huffman压缩算法压缩率太低; B:JPEG压缩算法需要太多位运算,且运算量大(有专门MMX优化算法),不利于VB实现; C:GIF-LZW压缩算法压缩率较好,且我已想出VB语法下高效GIF-LZW压缩/解压算法。 四、使用“有序抖动”算法进行 色彩量化。理由:“有序抖动”处理的结果具有一定规律性,有助于LZW类算法压缩。-(using GIF_LZW algorithm) picture transmission network ~~~~~~~~ a technical features, the use of TCP to transmit data. Reason : good stability. Two, the use of byte data stream for transmission, reasons : A : VB String exist automatically Unicode conversion, the impact speed; B : can directly send eight bytes of data and do not need to use Base64 encoding, thereby reducing the coding time. 3, the use of GIF- LZW compression algorithm for image compression. Reason : A : itinerary coding, Huffman compression algorithm compression rate is too low; B : JPEG compression algorithm needs much-bit computing, and large amount of computation (with MMX spe
- 2022-05-19 18:52:33下载
- 积分:1
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Detect Windows own firewall whether to activate the category. Use COM, study ref...
检测Windows自带的防火墙是否启动类。用到COM,学习参考用-Detect Windows own firewall whether to activate the category. Use COM, study reference
- 2022-01-28 00:14:18下载
- 积分:1
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WINsocket TCP/IP协议套接字,收发数据程序
WINsocket TCP/IP协议套接字,收发数据程序-WINsocket TCP/IP socket, procedures for data transceiver
- 2023-02-07 09:45:03下载
- 积分:1
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一份用vc实现的封装完整的异步网络连接动态链接库,非常实用。...
一份用vc实现的封装完整的异步网络连接动态链接库,非常实用。-Achieved with the vc in a complete package, an asynchronous network connection dynamic link library, very useful.
- 2022-11-08 12:30:04下载
- 积分:1
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自动网络升级的代码
自动网络升级的代码-Automatic network upgrade code
- 2022-03-25 15:47:50下载
- 积分:1
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ISAPI源代码 imgdbfrm
ISAPI源代码 imgdbfrm-ISAPI source code imgdbfrm
- 2022-05-19 12:37:05下载
- 积分:1
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The program standard BitSpoder category realize, realize multi
该程序采用标准的BitSpoder类实现,实现BitTorrent多点下载。-The program standard BitSpoder category realize, realize multi-point BitTorrent download.
- 2022-03-19 16:14:42下载
- 积分:1
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使用remotting实现客户端服务端通信一个小实例。作一下修改可实现双向通信...
使用remotting实现客户端服务端通信一个小实例。作一下修改可实现双向通信-Remotting the use of client service to achieve a small example of client communications. What modifications can be realized for two-way communication
- 2022-08-23 02:46:32下载
- 积分:1
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单射函数问题
设函数f将点集S = {0,1, , n
单射函数问题
设函数f将点集S = {0,1, , n -1}映射为f (S) = { f (i) | iÎ S} Í S 。单射函数问题要
从S中选取最大子集X Í S 使f (X )是单射函数。
例如,当n=7, f (S) = {1,0,0,2,2,3,6} Í S 时, X = {0,1,6} Í S 是所求的最大子集。-Injective function, the function f the problem will be the point set based S = (0,1, , n-1) maps to f (S) = (f (i) | iÎ S) Í S. Injective function of the problem from the largest subset of S, select the X Í S so that f (X) is injective function. For example, when n = 7, f (S) = (1,0,0,2,2,3,6) Í S, when, X = (0,1,6) Í S is a subset of the desired maximum.
- 2023-04-24 20:15:02下载
- 积分:1
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vc下基于winsock2的网络嗅探器的程序。可以查看数据包的协议、源目的地址和端口以及数据及其大小...
vc下基于winsock2的网络嗅探器的程序。可以查看数据包的协议、源目的地址和端口以及数据及其大小-vc-based network sniffer Winsock2 procedures. Can view the data packet protocol, source and destination address and port data and the size of
- 2022-07-22 12:51:29下载
- 积分:1