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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.
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Size: 1024 |
Author: Mark Li |
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Description: 图像解码。JPEG，matlab实现。图像解码源码-Image decoding. JPEG, matlab realize. Image decoding source
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Size: 1024 |
Author: Mark Li |
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Description: 三维立体图像方面 关于图像处理的matlab源程序-Three-dimensional images on the image processing matlab source
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Size: 60416 |
Author: shijing |
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Description: 实现JPEG的压缩和编码
（1）首先通过DCT变换去除数据冗余；
（2）使用量化表对DCT系数进行量化；
（3）对量化后的系数进行Huffman编码。
-The realization of JPEG compression and coding (1) First of all, through the DCT transform to remove data redundancy (2) the use of quantization table of quantization DCT coefficients (3) of the coefficients after quantization Huffman coding.
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Size: 2048 |
Author: 李雅 |
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Description: JPEG的编码和解密的源程序，并附有测试图像。-JPEG encoding and decrypt the source, along with test images.
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Size: 62464 |
Author: 111111 |
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Description: jpeg编码
Steps to Run:
1. Run jpegdemo.m (encoder) by Yu Hen Hu
2. Run ijpegdemo.m (decoder) by Ravi Lakkundi (Me)
-jpeg encoding Steps to Run: 1. Run jpegdemo.m (encoder) by Yu Hen Hu2. Run ijpegdemo.m (decoder) by Ravi Lakkundi (Me)
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Size: 74752 |
Author: liuyuhao |
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Description: jpeg压缩matlab源代码。由均匀量化和huffman编码组成，简洁易懂-jpeg compression matlab source code. By the uniform quantization and huffman coding components, concise and understandable
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Size: 29696 |
Author: wuzhikai |
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Description: matlab jpeg压缩代码文档。包括一些基本jpeg知识和常见开发问题-matlab jpeg compression code document. Jpeg, including some of the basic knowledge and common development
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Size: 57344 |
Author: wuzhikai |
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Description: 灰度图像的jpeg压缩处理，解压处理，以及信噪比SNR的计算-Grayscale jpeg image compression, decompression, as well as the calculation of signal to noise ratio SNR
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Size: 17408 |
Author: 华斌 |
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Description: JPEG压缩方法由于其较高的压缩比和理想的压缩效果，是目前应用最广泛的图像压缩方法-JPEG compression method because of its higher compression ratio and ideal compression effect, is currently the most widely used method of image compression
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Size: 58368 |
Author: 王为 |
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Description: jpeg decoder encoder matlab code for algorothim models
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Size: 105472 |
Author: naveen |
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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 .
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Size: 481280 |
Author: mazen |
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Description: 这是一个用MATLAB软件来实现的图像JPEG压缩程序源代码-This is a used MATLAB software to achieve JPEG image compression source code
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Size: 1118208 |
Author: 刘继红 |
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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
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Size: 523264 |
Author: 压子 |
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Description: 关于各类图象的攻击,如果滤波,噪音,锐化,JPEG压缩-Attacks on all types of images, if filtering, noise, sharpening, JPEG compression, etc.
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Size: 1024 |
Author: 小户 |
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Description: Matlab source code related to jpeg. which is useful for the developers .. compression and decompression -Matlab source code related to jpeg. which is useful for the developers .. compression and decompression ..
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Size: 2048 |
Author: amritha |
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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
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Size: 59392 |
Author: yang |
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Description: 编程实现基于8×8子块的DCT图像变换，基于JPEG量化矩阵的量化与反量化，基于8×8子块DCT的图像重建；以一幅512×512、8比特/象素的图像为实验对象，计算重建后的PSNR。-Programming based on 8 × 8 sub-block of the DCT image transform, quantization matrix based on the JPEG quantization and anti-quantitative, based on the 8 × 8 sub-block DCT of the image reconstruction to a 512 × 512,8 bits/as Su-image for the experiment, re-calculation of PSNR.
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Size: 111616 |
Author: zfyplay |
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Description: 抗jsteg的隐写分析，jsteg jpeg图像隐写的重要方法之一。-Anti-jsteg of steganalysis, jsteg jpeg image steganography one of the important ways.
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Size: 3916800 |
Author: 包志强 |
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Description: matlab实现jpeg压缩，源码实现，针对黑白图像。-the realization of jpeg compression matlab
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Size: 1024 |
Author: 贾西北 |
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