The paper introduces the reason of image compression and digital image compression and coding.
本文介绍了图像压缩的原因及数字图像压缩编码。
Digital image compression is an important problem both in efficient image storage and transmission.
数字图像压缩对于数字图像的有效存储和传输是非常重要的。
Technologies for digital image compression have been the subject of much study over the past decade.
数字图像的压缩编码技术已经成为过去十几年来的重要研究课题。
The verification results illustrate that digital image compression system based on PDVQ has dependability and practicality.
验证结果表明，基于PD VQ的数字图像压缩系统具有可靠性和实用性。
The digital image compression technology, the key technology in the multimedia applications, the international standards and chips about compression are illustrated in this paper.
阐述了多媒体应用中的关键技术——数字图像压缩技术，及有关压缩的国际标准和芯片。
So the digital image compression technology and the digital image encryption technology have been born and applied in many field, such as multimedia, communication, medicine and so on.
数字图像压缩技术和数字图像加密技术应运而生，并且被广泛应用到多媒体、通讯、医学等等各个领域。
Firstly, the thesis presents the system scheme of digital image compression based on PDVQ. Then we introduce the hardware design, FPGA logic realizing and FPGA implement of image processing algorithm.
本文首先给出了基于PD VQ的数字图像压缩系统的系统方案，然后介绍了系统的硬件结构设计、FPGA逻辑实现以及图像处理算法的FPGA实现。
By still image compression coding technique, the color digital watermark is encoded into a series of binary ID Numbers for watermarking.
利用静态图像的压缩编码技术，将彩色数字水印编码为一系列二值id数字，以实现水印的嵌入。
For a given monochrome digital image with low detail, an adaptive DCT data compression method is given and compared with adaptive DPCM method.
对于给定的细节较少的单色数字图象，本文给出了一种自适应的离散余弦变换(DCT)数据压缩方法。
The system uses CCD for getting digital image, uses a 16 bit fix-point DSP to perform fast discret cosine transform(DCT) arithmetic and image encoding and realizes a fast image compression in end.
系统使用CCD获取原始数字图像数据，采用快速算法实现了核心的二维DCT变换，经过编码后，在一个16位定点DSP上实现了快速图像压缩。
Then, the research is emphasized on the three main functions of a digital camera processor: architecture design, image processing and image compression.
然后，研究重点集中在数码相机处理器的三个主要功能上：结构设计，图像处理和图像压缩。
The technologies of the compression of digital image act key role to storing and transferring of multimedia information.
数字图象压缩在多媒体信息的存储和传输中扮演着非常重要的角色。
Recently the lossless compression skill of digital image is becoming a hot focus of research.
数字图像的无损压缩是一个新兴的研究热点。
What the image video compression solves is reducing the data amount as possible while showing digital images.
图像视频压缩所解决的问题是尽量减少表示数字图像时所需的数据量。
Image compression is the main content of digital image processing technology, and it is vital to image storage and transmission.
图像数据压缩是数字图像处理技术所研究的主要内容，它在图像存储和图像传输方面有着非常重要的地位。
A new still image compression standard: JPEG2000 developed by ISO has higher compression performance as well as some new features which is beneficial to digital image processing.
国际标准化组织(iso)指定的新一代静止图像压缩标准：JPEG2000具有传统JPEG图象格式所没有的更高压缩比和更多有利于数字化图象处理的新功能。
Due to the various causes, the no error code of digital image is the compression method solely accepted in some applications.
由于一些正当的原因，无误差编码在某些应用中是唯一可接受的压缩方法。
The digital image has huge data information, so the algorithm which has high compression ratio and high fidelity rate is urgently needed, taking account of storage cost and communication.
由于数字图像具有数据量大的特点，出于对图像存储成本和图像通信的考虑，良好的图像压缩技术要能够实现高压缩率和高保真率。
During transmitting and storing information of digital image, in order to decrease the time of transmission and the space of storage, image compression procedure must to be done.
在图像的传输和存储过程中，为减少传输时间与存储空间，必须进行图像压缩。
The Method based on the DCT transformation has been the center technology for most of the digital image and video coding standards, since it features on good de-correlation and energy compression.
基于分块dct变换的编码方法，由于具有良好的去相关性和能量压缩特性，已经成为现有大多数图像和视频编码标准的核心技术。
JPEG has been one of the most popular compression standards of digital image. It is ensured that the watermarking algorithm is very robust against image compression, especially JPEG compression.
这就保证了水印算法对有损压缩具有极好的鲁棒性，特别是JPEG压缩。
With the fast develop of multimedia techniques, there are many areas need more efficient real-time compression techniques for digital image processing.
随着近年来多媒体技术的飞速发展，许多应用领域对视频图像的实时压缩提出了更高的要求。
With the fast develop of multimedia techniques, there are many areas need more efficient real-time compression techniques for digital image processing.
随着近年来多媒体技术的飞速发展，许多应用领域对视频图像的实时压缩提出了更高的要求。
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