Description: 本文就当前的热点远程屏幕图象的抓取及其在网络上传输过程进行了详细介绍，并针对目前这类相关软件中普遍存在的网络带宽过大、实时性差、占用系统资源过多、稳定性差等问题侧重在屏幕图象的抓取与位图数据流的压缩、解压缩两方面提出了较为有效的解决方法，并提供了改进与实现的Delphi代码。本文将对于现有此类相关软件的完善及今后相关软件的研发具有非常重要的指导与参考价值-paper on the current hot Remote screen image capture and transmission networks in the process are described in more detail, and present related software such widespread network bandwidth is too large, real-time difference, taking up too many system resources, poor stability issues focused on the screen image capture and several bitmap According to the flow of compression, decompression two made a more effective solution, and provide improved with the realization of the Delphi code. This paper will be available for such software and the improvement of future software development is an important and valuable reference guide Platform: |
Size: 7959 |
Author:lenk |
Hits:
Description: 基于J PEG2000的数字水印蒋勇(西南科技大学计算机科学与技术学院四川绵阳621010)【摘 要】：网络技术的发展为数字作品的传播提供了方便，同时也引发了对数字作品的盗版现象，如何保护数字作品的版权日益受到关注：JPEG2000作为ISO推荐的新一代静止图像压缩标准，由于其感兴趣区域编码，渐进传输等优越性能，有着广阔的应用前景。本文旨在研究保护JPEG2000图像作品版权的数字水印方案。-based digital watermarking Jiang Yong (Southwest University of Science and Technology Computer Science and Technology Institute in Sichuan Mianyang 621010) Abstract : the development of network technology for the transmission of digital works to provide a convenient, also triggered the right of pirated digital works, how to protect the copyright of digital works have been a growing concern : ISO JPEG2000 as recommended by the new generation of still image compression standard, because of its interest in regional coding, progressive transmission, and other advantages can be as broad application prospects. This paper is to study the protection of JPEG2000 images copyright of digital watermarking programs. Platform: |
Size: 132322 |
Author:ghostsx |
Hits:
Description: 这个源码涉及到网络编程，图像处理，数据压缩与传输。-source involved in the programming of the network, image processing, data compression and transmission. Platform: |
Size: 310272 |
Author:谢佳友 |
Hits:
Description: 本文就当前的热点远程屏幕图象的抓取及其在网络上传输过程进行了详细介绍，并针对目前这类相关软件中普遍存在的网络带宽过大、实时性差、占用系统资源过多、稳定性差等问题侧重在屏幕图象的抓取与位图数据流的压缩、解压缩两方面提出了较为有效的解决方法，并提供了改进与实现的Delphi代码。本文将对于现有此类相关软件的完善及今后相关软件的研发具有非常重要的指导与参考价值-paper on the current hot Remote screen image capture and transmission networks in the process are described in more detail, and present related software such widespread network bandwidth is too large, real-time difference, taking up too many system resources, poor stability issues focused on the screen image capture and several bitmap According to the flow of compression, decompression two made a more effective solution, and provide improved with the realization of the Delphi code. This paper will be available for such software and the improvement of future software development is an important and valuable reference guide Platform: |
Size: 8192 |
Author:lenk |
Hits:
Description: 传统的屏幕传输采用的是这样的方法: 抓取屏幕--à传输--à显示图像,此为完成传输一幅的过程.不断重复此过程即可实现屏幕监控.但是这种方法因为图像数据容量大,而网络实际信道容量是有限的,所以效果很不理想,具体表现就是每幅图像之间间隔时间长.后来发展到抓取屏幕-à压缩数据-à传输-à解压缩-à显示图像.这样做速度的确有所提高.但是在INTENET上面效果仍然不好-Traditional transmission screen is used in this way: capture screen- à transmission- à display images, this piece for the completion of transfer process. This process can be repeated to monitor the achievement of the screen. However, this approach because the image data large capacity, and network the actual channel capacity is limited, so the effect is not ideal, is a concrete manifestation of spacing between each image a long time. subsequently developed to capture screen-à compression data-à transmission-à-à extract showed image. do indeed increase the speed. However, the effect is still not above intenet Platform: |
Size: 96256 |
Author:wwwhhhggg |
Hits:
Description: 基于J PEG2000的数字水印蒋勇(西南科技大学计算机科学与技术学院四川绵阳621010)【摘 要】：网络技术的发展为数字作品的传播提供了方便，同时也引发了对数字作品的盗版现象，如何保护数字作品的版权日益受到关注：JPEG2000作为ISO推荐的新一代静止图像压缩标准，由于其感兴趣区域编码，渐进传输等优越性能，有着广阔的应用前景。本文旨在研究保护JPEG2000图像作品版权的数字水印方案。-based digital watermarking Jiang Yong (Southwest University of Science and Technology Computer Science and Technology Institute in Sichuan Mianyang 621010) Abstract : the development of network technology for the transmission of digital works to provide a convenient, also triggered the right of pirated digital works, how to protect the copyright of digital works have been a growing concern : ISO JPEG2000 as recommended by the new generation of still image compression standard, because of its interest in regional coding, progressive transmission, and other advantages can be as broad application prospects. This paper is to study the protection of JPEG2000 images copyright of digital watermarking programs. Platform: |
Size: 132096 |
Author:ghostsx |
Hits:
Description: 本文以DCT变换为基础，提出一种可以适用于不同网络传输环境下的分层编码方法。基于系数重要性的分层编码根据域中系数重要程度不同和信道传输特性，有选择地舍弃部分系数达到分层压缩的目的；基于比特平面的分层编码通过分析系数的比特平面，按照比特平面进行分层，根据设置的参数实现不同质量的图像压缩编码。 -In this paper, DCT transform based on a can be applied to different network environment layered coding method. Coefficient based on the importance of layered coding domain coefficients in accordance with the importance of different transmission characteristics and channel selectively discard some coefficient layered compression purposes bit plane based on the layered coding coefficient by analyzing the bit-plane, in accordance with the bit-plane stratified, in accordance with the parameters set to achieve different quality of image compression coding. Platform: |
Size: 88064 |
Author:thao |
Hits:
Description: 基于DM642的JPEG图像的网络传输协议，在DM642的评估板上测试通过。-The JPEG image based on the DM642 network transmission protocol, in the DM642 evaluation board of the test. Platform: |
Size: 1036288 |
Author:fire |
Hits:
Description: Omnet++,和VC++实现两端点网络于高斯信道上的图象传输模拟仿真 各平台通用-Omnet++, And VC++ The realization of the two end points of the network channel in the Gaussian image simulation of the transmission platforms Platform: |
Size: 1180672 |
Author:何理想 |
Hits:
Description: 随着数字图象技术、宽带网络技术和数字存储设备技术的发展，在网络上存储、传输大规模分布式数字图象库
成为可能，因此研究基于内容的图象检索技术成为近几年的热点。实现基于内容的图象检索系统的关键问题是实现图象
的语义分割。该文分六类对现有的图象语义分割技术进行了全面的总结，为进一步研究基于内容的图象检索技术奠定了
基础。-With the digital image technology, broadband networks and digital storage device technology, network storage, transmission of large-scale distributed digital image library has become possible, the study of content-based image retrieval technology to become hot in recent years . The realization of content-based image retrieval systems, the key question is to achieve semantic image segmentation. The six points of the existing semantic image segmentation technology to conduct a comprehensive summing up, for further study of content-based image retrieval technology laid the foundation. Platform: |
Size: 140288 |
Author:焦亚民 |
Hits:
Description: 本论文在简要阐述了各种光纤数字传输系统技术及其原理的基础上，通过比选确定出了符合钦州至崇左路段的较先进的光纤数字传输系统方案，确定其光纤通信系统采用SDH传输方案。在SDH传送网分层模型的基础上，对SDH传送网各层功能、信号流程、网络配置作了详细的阐述，同时说明了SDH传送网特有的复用映射原理。根据钦州至崇左路段的实际情况计算确定了系统中的重要参数，选择出了网络拓扑结构，按最坏值设计法进行了中继段长度的计算，编制了网络组织图、通道组织图及通信系统总体框图等。所设计的的高速公路光纤数字传输系统达到了能够同时传输语音、数据及图像的要求，并且满足了容量要求，实现了与相邻高速公路通信系统的相互连接。-The article,through compared to elects to determine,has conformed to Qinzhou to the Chongzuo road section ,which advanced optical fiber digital transmission system plan, had determined the optical fiber communications system using the SDH transmission plan in the principle foundation.In the SDH transmission network model foundation, each function of SDH transmission network,the signal flow simultaneously explained the SDH transmission network which uniqued multiplying mapping inciple.The computation had determined the system important parameter,had carried the worst value design law,the channel drafted pattern and the communications system overall diagram and so on. The highway optical fiber digital transmission system, hadbeen designed had achieved simultaneously transmiting the pronunciation on,the data and the image requestion has satisfied the capacity which has realized neighboring highway communications system mutual connection.
Keywords： Expressway communication system O Platform: |
Size: 851968 |
Author:lsj |
Hits:
Description: 其实原理就是捕获屏幕画面然后再把图像传给客户机。原理很简单：
1、先利用hdc=GetWindowDC(NULL) 得到桌面的hdc
2、memhdc=CreateCompatibleDC(hdc) 根据桌面的hdc创建一个和屏幕相同的内存DC
3、StretchBlt(memhdc,0, 0, nWid,nHei, hdc, 0, 0,nWid,nHei, SRCCOPY) ，把屏幕的图像复制到内存DC这时你已经在内存中得到了屏幕的图像了。这是设备相关的DDB图像，如果希望转换成设备无关的DIB图像，只要在DDB图像前创建一个标准的BITMAP文件头就可以了（DDBtoDIB( bitmap, BI_RGB, pal )）。
4、得到图像数据（如果考虑速度的话可以把图像压缩）
5、数据传输（远程监控）
“在这里，我们先来看看截获当前桌面是如何实现的。关于远程捕获，只要在下面的基础上加上网络传输部分就OK了。下面介绍的是捕获桌面技术的基础，具体截屏代码如下：
-In principle is to capture screen picture then pictures to the client. Principle is very simple:
1, first using HDC detected by FCM (NULL) GetWindowDC = Get the desktop HDC detected by FCM
2, memhdc = CreateCompatibleDC (HDC detected by FCM), According to the desktop HDC detected by FCM create a same memory DC and screen
3 and StretchBlt (0, 0, memhdc, nWid, nHei, 0, 0, HDC detected by FCM, nWid, nHei SRCCOPY) , The screen, the image to the memory when you are already in memory DC got screen image. This is related to the equipment, if hope DDB image converted image of device-independent DIB in DDB images, before creating a BITMAP standard file header can (DDBtoDIB BITMAP, Pal, BI_RGB ().
4 and image data (if consider speed can put the image compression)
5 and data transmission (remote monitoring)
"Here, we ll look at how the desktop is intercepted. About remote capture, just below the basis and network transmission parts with respect to OK. Here is the foundation, the desktop Platform: |
Size: 2048 |
Author:xushuangjay |
Hits:
Description: vc＋png按钮渐变, PNG文件格式是为了适应网络数据传输而设计的一种图像文件格式，用于取代格式较为简单、专利限制严格的GIF图像文件格式。而且，这种图像文件格式在某种程度上甚至还可以取代格式比较复杂的TIFF图像文件格式。它的压缩效率通常比GIF要高、提供Alpha通道控制图像的透明度、支持Gamma校正机制用来调整图像的亮度等。-vc+ png button gradient, PNG file format in order to meet the data transmission network designed a kind of image file format used to replace the format simple, patent restrictions on the GIF image file format strictly. Moreover, this image file format can also be replaced to some extent even more complex TIFF format image file format. Its compression efficiency is usually higher than the GIF to provide control of the image Alpha channel transparency support Gamma Correction mechanism used to adjust the image brightness and so on. Platform: |
Size: 4307968 |
Author:李立山 |
Hits:
Description: 本文提出一种基于方向提升小波变换的多描述图像编码方法,以避免压缩图像在互联网和无线网络环境下因数据包传输出错或丢失而导致的图像质量严重下降。-In this paper, the direction of lifting wavelet transform based multiple description image coding method, in order to avoid compression of images on the Internet and wireless network environment for data packet transmission errors or loss of image quality caused a serious decline. Platform: |
Size: 1098752 |
Author:ww |
Hits:
Description: Delphi利用流实现网络传输屏幕图像
含有源代码。和生成程序
先启动Server，
在启动Client，点连接服务器。在点截图。
-Delphi for network transmission using current screen image containing the source code. And generate program first started Server, start Client, point to connect to server. In point of capture. Platform: |
Size: 475136 |
Author:mrwlw |
Hits:
Description: 此版本界面简洁美观，通过Winsock进行网络传输，附带远程CMD功能(使用方法可在源码中获知)。棋子图片可更换，格式为32*32bmp文件背景色(255，192，128)。 -This version of the interface simple and beautiful, through the Winsock for network transmission, with remote CMD features (using the methods learned in the source code.) Piece image to be replaced, the file format is 32* 32bmp background color (255,192,128). Platform: |
Size: 122880 |
Author:sohoyeah |
Hits:
Description: 一款非常快的网络屏幕传输软件源码。产用新的图像差异获取方法。速度非常快。-A very fast network transmission software source code screen. Differences in production with the new image acquisition method. Very fast.
Platform: |
Size: 610304 |
Author:李好 |
Hits:
Description: 本建议书 | 国际标准是为了满足视频会议、数字存储媒体、电视广播、网络流媒体和通信等各种应用对高压
缩比运动图像压缩日益迫切的需求而制定的。同时也是为不同的网络环境中的应用设计一种灵活的编码数据表示
方式。本建议书 | 国际标准将使得运动视频能够作为一种计算机数据被处理，可以存储在各种不同的存储媒体
上，能够在当前和未来网络上传送和接收，并且在现有和将来的广播信道上分配。 -This Recommendation | International Standard is to satisfy the video conferencing, digital storage media, television broadcasting, Internet streaming and communication applications such as high compression ratio of the moving image compression increasingly urgent demands have been made. But also for different network environments to design a flexible application of coded data representation. This Recommendation | International Standard will allow moving video to be processed as a computer data can be stored in a variety of storage media, to the current and future network transmission and reception, and in the current and future broadcast channel on the distribution. Platform: |
Size: 2203648 |
Author:szfalloutadam |
Hits:
Description: 这是一个用VC++编写的用小波进行渐进传输的参考程序，\examples 目录中存放的是渐进传输的应用举例，包含有所需的.dll文件；\wavelet 目录中存放的是具体的实现源代码；\wavelet 子目录中存放的是基本的小波处理函数代码；\wavelet_plugin 子目录中存放的是.dll的实现代码。希望对大家使用小波工具进行图像的网络渐进传输有帮助。-This is a VC++ written using wavelet progressive transmission of the reference program, \ examples directory is stored in the progressive transmission of applications for example, contains the necessary. Dll files \ wavelet directory is stored in the concrete realization of the source code \ wavelet is stored in a subdirectory of the wavelet basic function of the code \ wavelet_plugin is stored in a subdirectory. dll implementation code. We want to use the wavelet tools for image progressive transmission network help.
Platform: |
Size: 676864 |
Author:wen |
Hits:
Description: 它内建Web Server和CCD图像传感器，内部增加了对模拟视频进行数字化处理的DSP 芯片，可以将数字视频信号转成符合网络传输协议的数据流，送到网上传输，远端的浏览者只要用标准的网络浏览器即可实时观看该影像。此种摄像机除了具有普通复合视频信号输出接口（BNC）外，还有网络输出接口（RJ—45），可直接将摄像机接入本地局域网。-Built-in Web Server and CCD image sensor, the increase within the DSP chip to digitize analog video, digital video signals can be converted to meet the network transport protocol data stream sent to the online transmission, remote viewers as long as standard Web browser to view the images in real time. Such cameras in addition to ordinary composite video signal output interface (BNC), the network output interface (RJ-45), directly to the camera connected to the local LAN. Platform: |
Size: 619520 |
Author:bao |
Hits:
Search - Image transmission in network