Description: 此源码为按照jpeg标准编写的huffman压缩程序源代码，主要是进行图像数据压缩-source of this according to jpeg standards prepared by the Huffman compression source code, mainly for image data compression Platform: |
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Author:张 |
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Description: 此源码为按照jpeg标准编写的huffman压缩程序源代码，主要是进行图像数据压缩-source of this according to jpeg standards prepared by the Huffman compression source code, mainly for image data compression Platform: |
Size: 4096 |
Author:张 |
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Description: 这是关于图像压缩编码的VC源代码，该代码可实现Huffman编码、Shannon-Fano编码、算术编码以及位平面编码等算法。对作图像压缩编码的同仁是个很好的参考代码。代码来自《数字图像处理典型算法及实现》。-This is the image compression coding on the VC source code, the code can be realized Huffman coding, Shannon-Fano coding, arithmetic coding and bit-plane coding algorithm. For image compression coding of the Tongren is a good reference source. Code from the Platform: |
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Author:李白云 |
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Description: 各类图像压缩编码的VC++综合程序，包含了霍夫曼编码、香农－费诺编码、算术编码、游程编码、位平面编码等压缩编码的子程序源代码，非常适合学习用-Various types of image compression coding VC++ Comprehensive program, including the Huffman coding, Shannon- Fenno coding, arithmetic coding, run-length coding, bit plane coding and other coding subroutine source code, very suitable for learning to use Platform: |
Size: 238592 |
Author:刘勇 |
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Description: 常用图像压缩编码码matlab实现。包括：DM编码、变换编码（FFT和DCT）、算术编码、行程编码、Huffman编码、线性预测编码和一个近似的JPEG编码过程。非常适合入门用户实践。-Commonly used image compression coding matlab code to achieve. Including: DM coding, transform coding (FFT and DCT), arithmetic coding, Run-Length Coding, Huffman coding, linear predictive coding and a process similar to JPEG encoding. Very suitable for the practice of entry-users. Platform: |
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Author:liliang |
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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: |
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Author:压子 |
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Description: applied k means clustering for vector quanta and
used huffman for image compression matlab code Platform: |
Size: 10240 |
Author:alperen_colak |
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Description: Huffman编码的主导思想是根据数据符号发生的概率进行编码。在源数据中出现概率越高的符号，相应的码长越短；出现概率越小的符号，其码长越长，从而达到用尽可能少的码符号表示源数据。Huffman编码方法是接近压缩比上限的一种最佳的编码方法。-The dominant idea of the Huffman coding is based on the probability of occurrence of data symbols for encoding.The higher the probability that the symbol appears in the source data and the corresponding code length is shorter smaller probability symbols, the code length is longer, so as to achieve as little as possible code symbols indicates that the source data. Huffman encoding method is close to the compression than the upper limit of an optimal encoding method.reduce the temporal redundancy, DCT technology to reduce the the image spatial redundancy, the use of entropy coding aspects reduce the informationa statistical redundancy. The integrated use of several techniques, which greatly enhanced the compression performance. Platform: |
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Author:张怡然 |
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Description: 图像压缩源码，包括huffman，JPEG等方式。可供初学者参考，欢迎进一步扩展分享。-Image compression source, including huffman, JPEG, etc.. Reference for beginners, are welcome to share further expansion. Platform: |
Size: 4096 |
Author:candy |
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Description: matlab project for huffman code for image compression that convert image to the binery and than create its treee and docode to reduce its size-matlab project for huffman code for image compression that convert image to the binery and than create its treee and docode to reduce its size... Platform: |
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Author:ihtsfam |
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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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