Description: 图形图象中dct变换中用到的zigzag扫描原代码是基于matlab中的开发-graphic images used Copy transform the Zigzag scanning source code is based on the Matlab Development Platform: |
Size: 1287 |
Author:付源 |
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Description: 图形图象中dct变换中用到的反zigzag扫描原代码是基于matlab中的开发-graphic images used Copy transform the anti-Zigzag scanning source code, which is based on Matlab Development Platform: |
Size: 1695 |
Author:付源 |
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Description: 图形图象中dct变换中用到的zigzag扫描原代码是基于matlab中的开发-graphic images used Copy transform the Zigzag scanning source code is based on the Matlab Development Platform: |
Size: 1024 |
Author:付源 |
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Description: 图形图象中dct变换中用到的反zigzag扫描原代码是基于matlab中的开发-graphic images used Copy transform the anti-Zigzag scanning source code, which is based on Matlab Development Platform: |
Size: 1024 |
Author:付源 |
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Description: ％ 这是参照 University of California 提供的 MPEG 源代码的基础上编制的。
％用分块方法（8x8的块）对图象做zigzag变换，
％效率极高，程序简洁，属信息隐藏中常用的方法之一。
％作者：辽宁大学 信息学院 范铁生
％email:fts0@163.com- This is a reference to University of California to provide the MPEG source code based on the establishment. Of sub-block method (8x8 block) to make zigzag transform images, high efficiency and simple procedure, which is commonly used in information hiding methods. Author: Liaoning University School of Informatics Fan Tiesheng email: fts0@163.com Platform: |
Size: 1024 |
Author:gao |
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Description: ％ 这是参照 University of California 提供的 MPEG 源代码的基础上编制的。
％用分块方法（8x8的块）对图象做zigzag变换，
％效率极高，程序简洁，属信息隐藏中常用的方法之一。
％作者：辽宁大学 信息学院 范铁生
％email:fts0@163.com- This is a reference to University of California to provide the MPEG source code based on the establishment. Of sub-block method (8x8 block) to make zigzag transform images, high efficiency and simple procedure, which is commonly used in information hiding methods. Author: Liaoning University School of Informatics Fan Tiesheng email: fts0@163.com Platform: |
Size: 1024 |
Author:gao |
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Description: matlabBank-Based Kalman Filtering Technique for] - A Filter-Bank-Based Kalman Filtering Technique for Wavelet Estimation and Decomposition of Random Signals.pdf
[DIP_dg.rar] - JPEG图像压缩像素之扫描方法之一（zigzag scan）这是用的循环法
[imagethreshold.zip] - 老外编写的阈值分割代码,非常的好,强烈推荐下载
[contour.rar] - 利用OpenCV进行轮廓提取，很好用！对于初学openCv的人来说是个很好的入门例程
[lu.rar] - 路径识别 -matlabBank-Based Kalman Filtering Technique for]- A Filter-Bank-Based Kalman Filtering Technique for Wavelet Estimation and Decomposition of Random Signals.pdf [DIP_dg.rar]- JPEG image compression, one pixel of the scanning method (zigzag scan) This is used Cyclic Law [imagethreshold.zip]- foreigners prepared threshold segmentation code, very good, strongly recommend to download [contour.rar]- use OpenCV for contour extraction, very good use! OpenCv for the beginner who is a good entry-routines [lu.rar]- Path Recognition Platform: |
Size: 81920 |
Author: |
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Description: ZIGZAG程序，实现对图像矩阵ZIGZAG顺序读取。通常作为函数调用。还有就是霍夫曼编码的程序，得到图像霍夫曼的编码-ZIGZAG procedures ZIGZAG image matrix to achieve the order read. Usually as a function call. There is the Huffman code procedure, the image encoding Hoffman Platform: |
Size: 2048 |
Author:lulu |
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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: Implementation of JPEG compression algorithm with JFIF header being appended.This project involves writting code for following steps : Chroma subsampling,partitioning ,level shifting,DCT,quantization,zigzag scanning(involves DC differential coding & AC huffman coding) & adding jfif header following the rules specified in itu-t.81. Platform: |
Size: 966656 |
Author:dwn |
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Description: 本代码由matlab语言编写，实现了jpeg算法，主要为了说明基本的JPEG功能。经过DCT变化，量化，进行DPCM编码，然后之字形扫描AC系数，进行行程（LZW）编码。 显示原始图象和经编码解码后的图象，显示压缩比，并计算均方根误差。-The code consists of matlab language, to achieve a jpeg algorithm, mainly to illustrate the basic functionality of JPEG. After changing DCT, quantization, for DPCM coding, then the AC coefficients of the zigzag scanning, for stroke (LZW) coded. Shows the original image and the encoded decoded image showing the compression ratio, and calculate the mean square error. Platform: |
Size: 5120 |
Author:wyd |
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Search - matlab zigzag code