Description: The JPEG-2000 Still Image Compression Standard 《JPEG-2000静止图像压缩标准》英文-The JPEG-2000 Still Image Compression Standard "JPEG-2000 still image compression standard" English Platform: |
Size: 311296 |
Author:景仁 |
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Description: JPEG图片压缩，可压缩到原大小的百分之10左右-JPEG image compression, compressible to the original size of about 10 Platform: |
Size: 1024 |
Author:zhouzhou |
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Description: JPEG标准下图象压缩的VHDL实现工程，包含文档，原代码及测试代码-JPEG image compression standard of VHDL realization of the project, including documentation, source code and test code Platform: |
Size: 1474560 |
Author:王刚 |
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Description: JPEG图像压缩编码原代码。用matlab开发。-JPEG image compression coding the original code. Using matlab development. Platform: |
Size: 1024 |
Author:Mark Li |
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Description: JPEG标准下图象压缩的vhdl实现工程，文件包括一个图像。-JPEG image compression standard works of VHDL realize that the document includes an image. Platform: |
Size: 260096 |
Author:姚大雷 |
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Description: 有关图像压缩的jpeg实现算法介绍及其源码-Related to the jpeg image compression algorithm introduced and its source Platform: |
Size: 162816 |
Author:刘荣国 |
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Description: 摘 要
文章以空间监控系统为背景,深入研究了JPEG图像压缩标准的实现方法,并基于FPGA对其进行了实现和优化。文中给出了详细的实现方法和优化过程,测试表明达到了很好的效果。
简单介绍了有损静态图像压缩当前有两种比较流行的标准JPEG和JPEG2000。说明了用JPEG方法压缩的原因。
介绍JPEG基本原理：JPEG对灰度图像的压缩处理过程主要包括:图像分割,离散余弦变换(DCT),量化(Quantization),“Z”形排序(Zigzag Scan),差分脉冲编码调制(Differential Pulse Code Modulation,DPCM)对直流系数(DC),行程长度编码(Run-Length Encoding,RLE)对交流系数(AC),霍夫曼(Huffman)编码等。
JPEG标准的特点是离散余弦变换。
比较详细介绍压缩系统的构成和实现。实现提及步骤， JPEG压缩模块设计和编码模块实现细节。
-Abstract
Article in the space monitoring system for the background, in-depth study of the JPEG image compression standard implementation methods and carried out based on FPGA implementation and optimization. In this paper, a detailed method of implementation and optimization of the process, testing showed that to achieve good results.
Easy introduction of harmful static image compression has two kinds of comparisons that the current popular standard JPEG and JPEG2000. Illustrated by the reasons for JPEG compression method.
JPEG introduce the basic principles: JPEG compression of gray-scale image processing include: image segmentation, discrete cosine transform (DCT), quantization (Quantization), "Z"-shaped sort (Zigzag Scan), differential pulse code modulation (Differential Pulse Code Modulation, DPCM) on the DC coefficient (DC), Run Length Encoding (Run-Length Encoding, RLE) of the exchange coefficient (AC), Hoffman (Huffman) coding.
JPEG standard is characterized by discrete Platform: |
Size: 523264 |
Author:压子 |
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Description: 这是一个基于DCT的图像JPEG压缩程序，并将压缩码保存在一TXT文本中-This is a DCT-based JPEG image compression process, and code stored in a compressed text in TXT Platform: |
Size: 59392 |
Author:yang |
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Description: 基于JPEG的图像压缩，觉得可用，同学的毕业设计作品-Based on the JPEG image compression that can be used, students design the graduation Platform: |
Size: 13312000 |
Author:彭洪渊 |
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Description: 该程序利用离散余弦变换（DCT）对JPEG图像进行压缩与解压缩-The program using the discrete cosine transform (DCT) for JPEG image compression and decompression Platform: |
Size: 2538496 |
Author:gechengwei |
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Description: 图形图像处理中图像压缩的一些MATLAB代码，包括小波，jpeg等。-Graphic image compression image processing some MATLAB code, including wavelet, jpeg and so on. Platform: |
Size: 97280 |
Author:lite |
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