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。
The image compression includes transform of image, quantization and encoding.
图像的压缩包括变换、量化和编码。
Nowadays, wavelet transform, vector quantization and embedded encoding has been the primary technique and study focus for image compression, to which people attach their more importance.
目前，小波变换、矢量量化以及嵌入式编码已经成为图像压缩的主要技术及研究热点，越来越受到重视。
This paper describes these static image compression standards and encoding processes separately and compares the lossless compression feature of the processing of clinic static images.
本文分别介绍了这三个静止图像压缩标准和编码过程，并对三种压缩标准在处理临床静止图像的无损压缩性能方面做了比较。
The nowadays fractal image compression schemes suffers from long encoding time, because of considerable comparisons with domain blocks for each range block to find its best-match domain blocks.
目前分形图像压缩的最主要问题是其编码时间太长，这主要是因为在分形编码时，对每一个待编码值域块都需要比较数量巨大的定义域块才能找到它的最优匹配块。
Currently compression methods with higher compression ratio and lower bit rate become the hot spot in the area of image encoding.
目前高压缩比低码率的压缩方法成为图象编码领域的研究热点。
At present, binary image compression is still in the stage of lossless encoding with low compression ratios.
目前，二值图像压缩主要采用无损压缩方式，压缩倍数低。
Fractal image coding is a very promising compression technique, but it suffers from long encoding time.
分形图像编码是一种很有前途的压缩技术，但编码时间长阻碍了它的广泛应用。
The experiment results show that the new still image compression scheme provides higher perceptual quality and less encoding time than EZW, especially at low bit rates.
实验结果表明，该算法具有较好的图像复原质量和较快的编码速度，整体性能明显优于EZW方案（特别是低比特率下）。
Fractal image compression is of outstanding advantages of high compression ratio and high image qualities, but its encoding process is time-consuming.
分形图象编码法具有高压缩比、高图象品质等显著优点，但其编码时间太长。
Then, the text introduces the technology of JPEG encoding and decoding, and under the technology I have developed the software of the compression and decoding of the image.
介绍了JPEG编解码技术，并且运用JPEG标准完成对图像压缩和解压缩的软件设计。
The project is based on wavelet transform image compression, and implements wavelet transform, subband coding, The quantization and entropy encoding processes provide data compression;
该方案基于小波变换的场内图像压缩技术，采用小波变换、子带编码、自适应量化和熵编码来对图像数据进行压缩；
The project is based on wavelet transform image compression, and implements wavelet transform, subband coding, The quantization and entropy encoding processes provide data compression;
该方案基于小波变换的场内图像压缩技术，采用小波变换、子带编码、自适应量化和熵编码来对图像数据进行压缩；
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