-
JPEGimageCompressiontechniquesimplementationandopt
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 )
- 2009-03-29 08:39:04下载
- 积分：1
-
matlab
收集的matlab，simulink的全部基本命令，方便大家查阅！(Collection matlab, simulink all basic commands, convenient access to U.S.!)
- 2008-04-10 08:21:19下载
- 积分：1
-
fuz
模糊数学实验指导书,书中讲述了matlab编程实现了聚类分析以及多目标规划等问题，具有很好的指导意义(Fuzzy mathematics experimental guide book about the programming matlab realize the cluster analysis and multi-objective planning problem, has a good guide)
- 2008-06-10 22:04:31下载
- 积分：1
-
Pfunction2
电力系统优化，按照等微增率原则分配该发电厂24小时的负荷(Power System Optimization)
- 2010-01-03 21:11:58下载
- 积分：1
-
god
just for GOD testjust for GOD test
- 2015-01-08 18:27:32下载
- 积分：1
-
MATLAB--contour
通过matlab绘制MICAPS第四类数据等值线的源代码，并获得等值线的数据结构(By matlab draw contour MICAPS fourth class data source and get the data structure contour)
- 2021-01-08 22:58:51下载
- 积分：1
-
matlab-composite-ga
在matlab上建立的对于复合材料铺层的遗传算法优化历程(ga optimization method for composites optimization use based on matlab)
- 2021-04-14 20:18:54下载
- 积分：1
-
boost升压电路 boostpid
boost升压电路，输入电压为5v，输出电压为15v，采用PI控制调节系统占空比(boost booster circuit, the input voltage is 5v, the output voltage of 15v, using PI controller to change duty cycle of the system)
- 2015-10-30 23:05:07下载
- 积分：1
-
Color-image-histogram-equalization
图像处理MATLAB程序（教学使用）-图像灰度级修正（彩色图像直方图均衡化）(MATLAB image processing program (Teaching)- image gray level correction (color image histogram equalization))
- 2014-01-02 14:08:42下载
- 积分：1
-
emgm
mos mtlab file by hhh
- 2010-05-06 18:48:41下载
- 积分：1
