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Description: jpeg图像封装成avi文件，linux下测试通过
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Size: 34997 |
Author: coloriy |
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Description: （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 specialized optimization algorithm), is not conducive to VB; C : GIF- LZW compression algorithm compression ratio better, and I have come up with un
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Size: 62464 |
Author: 房 |
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Description: There are many approaches for motion detection in continuous video streams. All of them are based on comparison of current video frame with one from the previous frames or with something that we ll call background. In this article I ll try to describe some of the most common approaches. In describing the algorithms, I ll use an image processing library I ve described in my previous article. So, if you are common with it, it will only help. The demo applications support the following types of video sources: AVI files (using Video for Windows, interop library is included) updating JPEG from internet cameras MJPEG (motion JPEG) streams from different internet cameras MMS Stream - Microsoft Media Services local capture device (USB cameras or other capture devices).-There are many approaches for motion detection in continuous video streams. All of them are based on comparison of current video frame with one from the previous frames or with something that we ll call background. In this article I ll try to describe some of the most common approaches. In describing the algorithms, I ll use an image processing library I ve described in my previous article. So, if you are common with it, it will only help. The demo applications support the following types of video sources: AVI files (using Video for Windows, interop library is included) updating JPEG from internet cameras MJPEG (motion JPEG) streams from different internet cameras MMS Stream- Microsoft Media Services local capture device (USB cameras or other capture devices).
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Size: 116736 |
Author: |
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Description: motion jpeg 视频流中帧的抓取和格式转换，并且把文件保存到指定的路径。-motion jpeg video stream frame grabbing and format conversion, and the preservation of the document to designated trails.
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Size: 2188288 |
Author: wanglijun |
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Description: Delphi编程练习：在数据库中以文件流形式保存JPEG图片。-Delphi Programming practice: in the database in order to document the form of preservation of JPEG image stream.
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Size: 1024 |
Author: Mr.Wang |
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Description: 实现jpeg图像解码功能。
代码设计思路：1, Reconstruct the Huffman/RLE stream to a sequence
2, Arrange the sequence to a matrix using the zigzag scanning backwards
3, Multiply the matrix by quantization table
4, Perform inverse DCT
5, Shift the values by +128
6, Transform back to RGB color space
-Realize jpeg image decoding capabilities. Code design: 1, Reconstruct the Huffman/RLE stream to a sequence2, Arrange the sequence to a matrix using the zigzag scanning backwards3, Multiply the matrix by quantization table
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Size: 186368 |
Author: 颜新卉 |
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Description: 开发平台:ADS 1.2
功能：ARM下JPG文件解码(JPG文件数据流来自内存)
1、在ads1.2的AXD下选ARMULATE仿真。
2、运行前，在AXD上选“File"->选“Load Memory From File..."
3、在弹出的“Load Memory From File”对话框中"Address:"栏中填上0x20000,
然后选择一个jpg文件，按“打开”
4、按“F5”开始运行程序，运行完毕，在C盘根目录下会产生一个test.bmp文件
注意：有的JPG文件格式可能不兼容，最好先用WINDOWS XP自带的画图程序打开并
保存一下。
Seloo luo
seloo@tom.com
2008-10-10-Development platform: ADS 1.2 features: ARM decoder under the JPG files (JPG file data stream from memory) 1, in the next election ads1.2 the ARMULATE simulation AXD. 2, to run before the election in AXD on
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Size: 13312 |
Author: simon |
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Description: 局域网屏幕监控系统是主要由客户端和服务器端两部分组成。
客户端模块
该模块主要用于抓取屏幕信息，进行数据压缩，然后划分数据报，向服务器端发送数据，并等待服务器发来的确认信息。
服务器端模块
该模块主要用于接收客户端发送的数据报，然后向客户端发送确认信息，接着组合数据报为JPEG数据流，最后显示JPEG图像。
操作注意事项
（1）可执行文件位置：Server\Debug\Server.exe
Client\Debug\Client.exe
操作流程
运行本系统，请按照以下流程操作：
（1）首先将客户端（client）文件拷到要监控的机器上。
（2）然后修改Client文件夹中Server.ini文件中的IP地址为服务器端IP地址，并运行客户端程序。
（3）运行服务器端（Server）程序。
详细的局域网屏幕监控系统代码。来源于一个学习的光盘。可以作为经典的例子。
-LAN screen monitoring system is mainly by the client and server is composed of two parts. Client module The module used to capture screen information, data compression, and then divided the data reported to the server-side to send data and wait for the server sends to the confirmation message. Server-side module The module is mainly used for receiving data sent by the client reported, and then to the client to send confirmation message, and then reported portfolio data for the JPEG data stream, and finally show the JPEG images.
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Size: 2232320 |
Author: bbc9527 |
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Description: 基于J2ME的JPEG decode和encode，有完整解码、8分之一解码，8分之一流解码-JPEG decode & encode on J2ME Platform，1/8 fast decode, 1/8 stream decode
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Size: 28672 |
Author: sure |
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Description: Converts a collection of JPEG images to a YUV4MPEG stream.
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Size: 6144 |
Author: annie |
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Description: jpeg dumper. dumps the jpeg stream. uses the procedures from the jpeg standard. that s all.
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Size: 72704 |
Author: bugmenot5 |
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Description: to capture desktop from any others computer in your LAN. I use JPEG format to get small file/stream packages size
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Size: 7168 |
Author: Robert |
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Description: This package contains the two modified files of original live555 c++ library for saving rtsp stream as image. each frame will be saved as jpg image and updated every frame. this is particular useful in application which do image processing on live stream such as elphel camera send rtsp stream and with this code we can extract each frame of the stream, save it everytime with same file which can be read by opencv to do image processing.
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Size: 13312 |
Author: ad |
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Description: linux v4l2 camera driver unit test, grab stream into a jpeg picture on you file system
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Size: 6144 |
Author: DC |
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Description: matlab编程实现JPEG编码，输出为DC系数的码流、AC系数的码流、图像的高度宽度。-matlab programming JPEG encoding, the output stream for the DC coefficients, AC coefficients of the code stream, the image height width.
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Size: 2048 |
Author: yoyo |
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Description: livemedia rtp 库源码This code forms a set of C++ libraries for multimedia streaming, using open standard protocols (RTP/RTCP, RTSP, SIP). These libraries - which can be compiled for Unix (including Linux and Mac OS X), Windows, and QNX (and other POSIX-compliant systems) - can be used to build streaming applications. The libraries are already being used to implement applications such as "the LIVE555 Media Server" (a RTSP server application), "liveCaster" and "playRTPMPEG" (for streaming MP3 audio using RTP/RTCP), and "vobStreamer" (for streaming DVD content using RTP/RTCP/RTSP). The libraries can also be used to stream, receive, and process MPEG, H.263+, DV or JPEG video, and several audio codecs. They can easily be extended to support additional (audio and/or video) codecs, and can also be used to build basic RTSP or SIP clients and servers, and have been used to add streaming support to existing media player applications, such as "VLC" and "MPlayer". -This code forms a set of C++ libraries for multimedia streaming, using open standard protocols (RTP/RTCP, RTSP, SIP). These libraries- which can be compiled for Unix (including Linux and Mac OS X), Windows, and QNX (and other POSIX-compliant systems)- can be used to build streaming applications. The libraries are already being used to implement applications such as "the LIVE555 Media Server" (a RTSP server application), "liveCaster" and "playRTPMPEG" (for streaming MP3 audio using RTP/RTCP), and "vobStreamer" (for streaming DVD content using RTP/RTCP/RTSP). The libraries can also be used to stream, receive, and process MPEG, H.263+, DV or JPEG video, and several audio codecs. They can easily be extended to support additional (audio and/or video) codecs, and can also be used to build basic RTSP or SIP clients and servers, and have been used to add streaming support to existing media player applications, such as "VLC" and "MPlayer".
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Size: 457728 |
Author: 付晓辉 |
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Description: 此文档是研究关于JPEG哈夫曼编码二进制码流的详细分析，对于想研究JPEG码流如何编码的研究者将具有很大帮助。-This text tick is a search to admire the main huffman encode binary concerning JPEG code streaming of detailed analysis, for want to study the researcher whom the JPEG code flows how to code have to do a lot of good.
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Size: 203776 |
Author: 黄立 |
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Description: It is jpeg_decoder program. Source code are C and Verilog HDL.File .c reads data from jpeg and convert it to binary bit stream.Decoder is by verilog file
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Size: 199680 |
Author: doulce |
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Description: 一个视频采集服务器，将摄像头（支持JPEG）采集的视频客户端， 客户端可以是浏览器,http://localhost:端口号/?action=stream
qt客户短
注意：编译时不能用makefile(每做好)
执行时如：execute_file /dev/vedio0 -A video capture server, the camera (supports JPEG) capture video client, the client can be a browser, http://localhost: port number /? Action = stream qt customers short note: can not compile with makefile (per do a good job) is executed as: execute_file/dev/vedio0 8080
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Size: 2319360 |
Author: tangqiang |
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Description: JPEG本身只有描述如何將一個影像轉換為位元組的數據串流（streaming），但並沒有說明這些位元組如何在任何特定的儲存媒體上被封存起來。JPEG的壓縮方式通常是破壞性資料壓縮（lossy compression），意即在壓縮過程中圖像的品質會遭受到可見的破壞，有一種以JPEG為基礎的標準Lossless JPEG是採用無失真的壓縮方式，但Lossless JPEG並沒有受到廣泛的支援。
一個由獨立JPEG小組（Independent JPEG Group）所建立的額外標準，稱為JFIF（JPEG File Interchange Format，JPEG檔案交換格式）詳細說明如何從一個JPEG串流，產出一個適合於電腦儲存和傳輸（像是在網際網路上）的檔案。在普遍的用法，當有人稱呼一個"JPEG檔案"，一般而言他是意指一個JFIF檔案，或有時候是一個Exif JPEG檔案。然而，也有其他以JPEG為基礎的檔案格式，像是JNG。-PEG itself only describes how to convert a byte image data stream (streaming), but did not explain how these bytes in any particular storage media to be sealed up. JPEG compression method is usually destructive data compression (lossy compression), which means that the quality of the image compression will suffer visible damage, there is a standard based on the JPEG Lossless JPEG is the use of lossless compression methods, However, Lossless JPEG is not widely supported.
One by the Independent JPEG Group (Independent JPEG Group) established additional standards, called JFIF (JPEG File Interchange Format, JPEG File Interchange Format) details how a JPEG stream, output a suitable computer storage and transmission (such as is on the Internet) files. In common usage, when someone called a "JPEG file", generally meaning that he is a JFIF file, or sometimes an Exif JPEG file. However, there are other files in JPEG-based format, such as JNG.
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Size: 13312 |
Author: jason |
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