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: 这是我做的毕业设计，是基于DSP的数字图象压缩系统的实现。本系统能很好的压缩图象，系统运行时间快，压缩比也比较高。其中采用JPEG标准对图象进行压缩，使用了Huffman算法。-This is what I am doing graduate design is based on the DSP digital image compression system is achieved. The system can be a very good image compression, faster system running time, the compression ratio is relatively high. Which use JPEG standard for image compression, the use of the Huffman algorithm. Platform: |
Size: 322560 |
Author:高燕 |
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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: The purpose of this study is to compare between the to methods which is JPEG and JPEG2000 that are using in lossless image compression . Platform: |
Size: 481280 |
Author:mazen |
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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: 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: 本文首先介绍了静态图像压缩（JPEG）编码算法的基本原理、压缩的实现过程及其重要过程的离散余弦变换（DCT）算法的实现原理及软件实现的例程，其次着重介绍了压缩过程中的DCT、量化和编码三个重要步骤的实现原理。-This paper describes the static image compression (JPEG) coding algorithm is the basic principle of compression process of the implementation process and its important discrete cosine transform (DCT) Algorithm theory and software implementation of the routines, followed by highlights of the compression process DCT, quantization and encoding steps in the realization of three important principles. Platform: |
Size: 41984 |
Author:xuai |
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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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Search - image compression jpeg