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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
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snmpd C++程序,用于snmp 管理,已在实际应用中得到检验。相信给你一些帮助的。...
snmpd C++程序,用于snmp 管理,已在实际应用中得到检验。相信给你一些帮助的。-snmpd C++ sourcecodes
- 2023-05-21 02:05:03下载
- 积分:1
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这是一个简单的网络聊天的程序,能实现基本交互的功能
这是一个简单的网络聊天的程序,能实现基本交互的功能-This is a simple network chat program, to achieve the basic functions of interactive
- 2023-02-13 03:40:03下载
- 积分:1
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IP多播C++Builder版。IP多播是一种比广播效率更高得UDP传输方式,具有更多得优越性。提供得源码有较详细得注释,值得一看。...
IP多播C++Builder版。IP多播是一种比广播效率更高得UDP传输方式,具有更多得优越性。提供得源码有较详细得注释,值得一看。-IP Multicast C Builder version. IP Multicast is a more efficient than broadcasting in UDP transmission mode, They have more advantages. Source code is provided in more detail in the Notes overseas.
- 2022-09-07 02:10:02下载
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p-持续CSMA协议下,一个用户在发送之前,先侦听信道,若是空闲,就以概率p发送出去,而以q =1-p的概率推迟到下一帧时。如果下一帧时仍是空闲,便再次以概率p发送而以q推迟到再下一帧时。直到发送成功或另外一用户开始发送时为止。若一开始就侦听到信道忙,它就等到下一帧时,然后再开始上述过程。若发生冲突,这等待一随机时间后重新开始。本实验中取q值为0.5。求的是0.5-持续CSMA。
-p-persistent CSMA agreement, a user before sending the first interception channel, if idle, with probability p sent, and to q = 1-p probability postponed to the next frames. If the next frame was still idle, they again sent with probability p and q to further postponed to the next frames. Until this a success or other users at the beginning of this date. If an interception at the start of the busy channel, it will wait till the next frames, and then begin the process. If conflict breaks out, waiting for a random period of time after the re-start. The experiments take q value of 0.5. For the 0.5-sustained CSMA.
- 2022-02-07 21:49:23下载
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rtp协议实现代码
rtp协议实现代码-rtp protocol code
- 2023-06-04 16:15:02下载
- 积分:1
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Windows Sockets规范及应用Windows网络编程接口
Windows Sockets规范及应用Windows网络编程接口-Windows Sockets specifications and the Windows Application Programming Interface Network
- 2022-04-10 09:27:52下载
- 积分:1
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Network Programming for Windows
书源代码
(source code)
Network Programming for Windows
书源代码
(source code)-Network Programming for Windows source code book (SOU rce code)
- 2022-05-06 10:36:55下载
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获取本地或远程的网络信息。比如:输入计算机名,就可以获得IP地址等信息....
获取本地或远程的网络信息。比如:输入计算机名,就可以获得IP地址等信息.-Access to local or remote network information. For example: Enter the computer name, IP address, etc. on the available information.
- 2023-01-14 19:30:03下载
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SMTP pop in the given procedure to add a filter to enable the theme for the rece...
在给出的SMTP pop程序中加上一个过滤器,使能够对接收邮件的主题内容进行关键字过滤。关键字从文件中读出,不少于十个,比较结果符合的打印出过滤用关键字、邮件主题、邮件发件人。多重符合的每次结果都要打印。在windows Visual C++ 下调试-SMTP pop in the given procedure to add a filter to enable the theme for the receiving e-mail content filtering keywords. Keywords from the document read out, of not less than 10, in line with the results of the comparison with the print keyword filtering, mail the theme of the message sender. Multi-line with the results of each must be printed. In windows Visual C++ under the debugger
- 2022-04-20 20:17:43下载
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