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 |
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Description: 数字图像传输是图像编码与压缩技术的另一个重要应用领域。随着现代社会对通信业务要求的不断增长，图像通信和通信网容量的矛盾日益突出。特别是具有庞大数据量的数字图像信息更是难以传输和存储，极大地制约了图像通信的发展，已经成为图像通信发展中的瓶颈。图像压缩技术的应用为传真、视频点播、电视会议、医用图像传输等领域带来了巨大经济效益。快速压缩解压缩算法及其硬件结构在实时视频系统中起着关键的作用。
-digital image transmission of image coding and compression technologies Another important application areas. As modern society to the requirements of the communications business continued to grow, image communication and communication network capacity contradictions are becoming more prominent. Especially with the huge amount of data digital image information more difficult for transmission and storage, has greatly restricted the development of image communication, image communication has become a bottleneck in development. Image compression technology for the application by fax, video-on-demand, video-conferencing, transmission of medical images and other areas has brought huge economic benefits. Rapid compression and decompression algorithms in hardware for real-time video system plays a Platform: |
Size: 2210464 |
Author:陈兵 |
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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 Platform: |
Size: 62518 |
Author:房 |
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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 Platform: |
Size: 62464 |
Author:房 |
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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 |
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Description: 数字图像传输是图像编码与压缩技术的另一个重要应用领域。随着现代社会对通信业务要求的不断增长，图像通信和通信网容量的矛盾日益突出。特别是具有庞大数据量的数字图像信息更是难以传输和存储，极大地制约了图像通信的发展，已经成为图像通信发展中的瓶颈。图像压缩技术的应用为传真、视频点播、电视会议、医用图像传输等领域带来了巨大经济效益。快速压缩解压缩算法及其硬件结构在实时视频系统中起着关键的作用。
-digital image transmission of image coding and compression technologies Another important application areas. As modern society to the requirements of the communications business continued to grow, image communication and communication network capacity contradictions are becoming more prominent. Especially with the huge amount of data digital image information more difficult for transmission and storage, has greatly restricted the development of image communication, image communication has become a bottleneck in development. Image compression technology for the application by fax, video-on-demand, video-conferencing, transmission of medical images and other areas has brought huge economic benefits. Rapid compression and decompression algorithms in hardware for real-time video system plays a Platform: |
Size: 2209792 |
Author:陈兵 |
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Description: 图象的简单显示后的,以霍夫曼编码为原理的频域处理.主要效果为增加图象信息传输率.-Image after a simple show to Huffman coding for the principle of frequency domain processing. The main effect of increased information transmission rate of images. Platform: |
Size: 2048 |
Author:shen yi |
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Description: 基于标量量化的图像多描述编码（MDSQ）是提高信息传输质量的一种有效方法,本程序利用Matlab 工具在处理矩阵上的灵活性,实现了MDSQ 算法, 并通过解码后的图像证明该方法良好的多描述性能。-Scalar quantization-based image multiple description coding (MDSQ) is to improve the quality of information transmission of an effective method, the procedures for the use of Matlab tool flexibility matrix treatment, realized MDSQ algorithm, and through decoded images show that the method good performance of multiple description. Platform: |
Size: 297984 |
Author:shanyingying |
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Description: 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。-First, use the TCP protocol to transmit data. Reason: better stability.
Two, the use of byte data stream for transmission, the reasons:
A: VB s String existence automatic Unicode conversion question, effects of speed
B: can directly send 8-bit byte data, Does not need to use Base64 encoding, thereby reducing the encoding time.
Three, the use of GIF-LZW compression algorithm for image compression. Rationale:
A: Run-Length Coding, Huffman compression algorithm compression ratio is too low
B: JPEG compression algorithm required too many bit computing, and computing a large quantity (MMX has specialized optimization algorithm), VB is not conducive to implementation
C: GIF-LZW compression algorithm compression ratio is better, and I have come up with efficient under VB grammar GIF-LZW compression/decompression algorithm.
Four, use the "orderly jitter" algorithm for color quantization. Rationale: "orderly jitter" must deal with the results of reg Platform: |
Size: 54272 |
Author:whoamixp |
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Description: 本代码对于传输的JEPG图像进行编码,以利于图形图像在信道中的有效传输-The code for the transmission JEPG image coding, graphics image in the channel in order to facilitate the effective transfer Platform: |
Size: 74752 |
Author:全威 |
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Description: MPEG4是一种压缩率高、对传输带宽要求低、图像质量高的图象编码技术。提出了一套视频传输系统的实现方案。该方案基于OMAP1510具有的独特双核结构,结合蓝牙和MPEG4编码技术,实现窄带宽下的视频图像实时传输。-MPEG4 is a high compression ratio, and low transmission bandwidth, high image quality image coding techniques. A set of video transmission system for the program. The program is based on the unique OMAP1510 dual-core structure, combined with Bluetooth and MPEG4 encoding technology, the realization of narrow-bandwidth real-time transmission of video images. Platform: |
Size: 549888 |
Author:王硕亮 |
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Description: 图像处理，RS编码，纠错码这个单元对每个扰码后的传输数据帧,包括同
步字节进行截短的RS(204,188)编码.RS编码时,
在信息位前添加51字节的“0”再进入RS(255,239)
编码器,编码后再截去这些字节.RS(255,239)编码
-Image processing, RS coding, error correction code for each scrambling code of this unit after the transmission of data frames, including the sync byte truncated RS (204,188) code. RS encoding, the information bit before adding 51 bytes " 0 " and then enter the RS (255,239) encoder, encoding the bytes and then amputated. RS (255,239) coding Platform: |
Size: 1024 |
Author:zrq |
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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: |
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Author:ww |
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Description: Purpose of image processing
Processing of image data for storage, display & transmission
Improvement of pictorial information for Human Perception
Improvement of pictorial information for Machine Perception
Typical application areas
Television DIP brightness, contrast, hue & noise adjustment
Satellite DIP Remote sensing, Climate, Geology, Land/Sea resource
Medical DIP Ultra Sound, MRIPECT Scans, XRays
Robot Control Automatic inspection, Unmanned operations-Autonomous Vehicle (Mars Rover)
Visual Communications: Video-coding transmission conferencing, Tele-conferencingshopping
-Purpose of image processing
Processing of image data for storage, display & transmission
Improvement of pictorial information for Human Perception
Improvement of pictorial information for Machine Perception
Typical application areas
Television DIP brightness, contrast, hue & noise adjustment
Satellite DIP Remote sensing, Climate, Geology, Land/Sea resource
Medical DIP Ultra Sound, MRIPECT Scans, XRays
Robot Control Automatic inspection, Unmanned operations-Autonomous Vehicle (Mars Rover)
Visual Communications: Video-coding transmission conferencing, Tele-conferencingshopping
Platform: |
Size: 2407424 |
Author:Suresh |
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Description: In recent years, the development and demand of multimedia product grows increasingly fast, contributing to insufficient bandwidth of network and storage of memory device. Therefore, the theory of data compression becomes more and more significant for reducing the data redundancy to save more hardware space and transmission bandwidth. In computer science and information theory, data compression or source coding is the process of Encoding information using fewer bits or other information-bearing units than an unencoded representation. Compression is useful because it helps reduce the consumption of expensive resources such as hard disk space or transmission bandwidth. Platform: |
Size: 118784 |
Author:roopali |
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Description: 图像压缩与传输中所要用到的哈弗曼编码，希望为广大学者提供帮助。-Image compression and transmission in the use to the Huffman coding, hope for the majority of scholars to help. Platform: |
Size: 3072 |
Author:陈晓鹏 |
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Description: LC329是我司为工业红外相机定制开发的一款基于WIFI的无线图像传输模块。
LC329采用美国进口工业级图像处理芯片,最大程度保证图像清晰，色彩还原度高。
LC329支持NTSC/PAL制式的视频信号，能完整流程传输720x480@30帧
/720x576@25帧图像，并且该模块采用了多种业界顶尖的视频处理算法如：3D去隔
行,3D去噪滤波，H264编码等。
LC329还预留有GPIO和工业串口等扩展端口，方便其与其他部件电路通讯。
采用为Android或者Ios等移动终端的定制开发的软件客户端可以实时浏览
LC329的图像，截图和存储视频，收发控制信号等- LC329 is a wireless video transmission module based on WiFi which is customized developed for industrial infrared camera. It adopts industrial image processing chip imported USA to keep image clear and color restoration. LC329 supports the video signal of NTSC&PAL, can complete transfer 720 x480@30 frames and 720 x576@25 frames. And this module uses a variety of top video processing algorithms such as: 3D deinterlacing,
3D denoising and filtering, H.264 coding and so on.
LC329 also provides extended ports like GPIO and industrial serial port to communicate with other device.With customized client software developed for android or ios devices, the client can browse images, screenshot, store video , sending and receiving control signals, etc. Platform: |
Size: 1084416 |
Author:张军 |
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Description: This the first comprehensive treatment of the oretical aspects of the discrete cosine transform (DCT), which is being recommended by various standards organizations, such as the CCITT, ISO etc., as the primary compression tool in digital image coding. The main purpose of the book is to provide a complete source for the user of this signal processing tool, where both the basics and the applications are detailed. An extensive bibliography covers both the theory and applications of the DCT. The novice will find the book useful in its self-contained treatment of the theory of the DCT, the detailed description of various algorithms supported by computer programs and the range of possible applications, including codecs used for teleconferencing, videophone, progressive image transmission, and broadcast TV. The more advanced user will appreciate the extensive references. Tables describing ASIC VLSI chips for implementing DCT, and motion estimation and details on image compression boards are also provided.-This is the first comprehensive treatment of the theoretical aspects of the discrete cosine transform (DCT), which is being recommended by various standards organizations, such as the CCITT, ISO etc., as the primary compression tool in digital image coding. The main purpose of the book is to provide a complete source for the user of this signal processing tool, where both the basics and the applications are detailed. An extensive bibliography covers both the theory and applications of the DCT. The novice will find the book useful in its self-contained treatment of the theory of the DCT, the detailed description of various algorithms supported by computer programs and the range of possible applications, including codecs used for teleconferencing, videophone, progressive image transmission, and broadcast TV. The more advanced user will appreciate the extensive references. Tables describing ASIC VLSI chips for implementing DCT, and motion estimation and details on image compression boards Platform: |
Size: 20508672 |
Author:张超 |
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Description: The following Matlab project contains the source code and Matlab examples used for fractal image compression using quadtree decomposition and huffman coding. Image storage and transmission have created an increasing importance for the compression techniques.
The source code and files included in this project are listed in the project files section, please make sure whether the listed source code meet your needs there. Platform: |
Size: 56320 |
Author:DucAnhTran
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Description: 支持高精度视频数据，在高动态范围场景提供更多图像细节
支持先进编码工具，在获得更好图像质量的同时获得更高编码效率
支持感兴趣区域（ROI）变质量编码，在网络带宽或存储空间有限的情况下，提供更符
合监控需要的高质量视频编码
支持可伸缩视频编码（SVC），满足不同传输网络带宽和数据存储环境的需求
u 支持代数码书激励线性预测（ACELP）和变换音频编码（TAC）切换的双核音频编码，
保证对语音和环境（背景）声音均有较好的编码效果
支持声音识别特征参数编码，避免编码失真对语音识别和声纹识别的影响
支持监控专用信息（绝对时间、智能分析结果、报警信息），便于音视频内容的有效
管理和综合利用
支持加密和认证，保证监控数据的保密性、真实性和完整性(Support high precision video data to provide more image details in a high dynamic range scene
Support advanced coding tools to obtain better coding efficiency while obtaining better image quality
Support region of interest (ROI) variable quality coding, providing more characters in the case of limited network bandwidth or storage space.
High quality video coding for monitoring requirements
Support scalable video coding (SVC) to meet the needs of different transmission network bandwidth and data storage environment
U supports dual core audio coding, which enables digital books to stimulate linear prediction (ACELP) and switched audio coding (TAC) switching.) Platform: |
Size: 1473536 |
Author:xx002 |
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Search - Image coding for transmission