基于MATLAB的图像锐化及边界提取.docVIP

基于MATLAB的图像锐化及边界提取实现 PAGE  摘要 图像增强是指依据图像所存在的问题，按特定的需要突出一幅图像中的某些信息，同时，削弱或去除某些冗余信息的处理方法。其主要目的是使得处理后的图像对给定的应用比原来的图像更加有效同时可以有效的改善图像质量。图像增强技术主要包含直方图修改处理、图像平滑化处理、图像尖锐化处理和彩色处理技术等。本文先对图像增强的原理进行概述，然后对图像增强的方法分类并给出直方图增强、平滑和锐化等几种常用的增强方法、彩色图像增强的理论基础，通过MATLAB实验得出的实际处理效果来对比各种算法的优缺点，讨论不同的增强算法的技术要点，并对其图像增强方法进行性能评价。 关键词 ?MATLAB??； 图像锐化??； 边界提取 ? Abstract Image enhancement is based on the problems existing in the images, according to the specific need to highlight some of the information in an image, at the same time, to weaken or remove some redundant information processing method. Its main purpose is to make the image after processing for a given application is more effective than the original image at the same time can effectively improve the image quality. Image enhancement technology mainly includes histogram modification, image smoothing processing, image intensification processing and color processing technology, etc. This article first overview of the principle of image enhancement and image enhancement method of classification and histogram enhancement, smoothing and sharpening of several common enhancement method, the theoretical basis of color image enhancement, through practical processing effect of MATLAB experiment compared the advantages and disadvantages of various algorithms, discussed the main technical points of the different enhancement algorithm, and its image enhancement method for performance evaluation. Key words MATLAB；image sharpening；?edge extraction · 目录 TOC \o 1-3 \h \z \u   HYPERLINK \l _Toc391722713 摘要  PAGEREF _Toc391722713 \h 1  HYPERLINK \l _Toc391722714 Abstract  PAGEREF _Toc391722714 \h 2  HYPERLINK \l _Toc391722715 第一章 绪论  PAGEREF _Toc391722715 \h 4  HYPERLINK \l _Toc391722716 1.1 图像锐化及边界提起发展背景和意义  PAGEREF _Toc391722716 \h 4  HYPERLINK \l _Toc391722717 1.2?图像锐化处理的现状