【正文】 圖像更加有效同時(shí)可以有效的改善圖像質(zhì)量。圖像增強(qiáng)技術(shù)主要包含直方圖修改處理、圖像平滑化處理、圖像尖銳化處理和彩色處理技術(shù)等。 Matlab 支持五種圖像類(lèi)型，即二值圖像、索引圖像、灰度圖像、 RGB 圖像和多幀圖像陣列。 關(guān)鍵字： matlab 圖像增強(qiáng) 灰度 濾波器Abstract II Abstract The image intensification is refers specificly according to needs to highlight in an image certain informations, simultaneously, weakens the information processing method which or removes certain does not its main purpose is the processing image is more effective than to certain specific applications the original image intensification technology mainly contains histogram revision processing, image smooth processing, image intensification processing and the colored processing technology and so on. The image intensification technology basically separable bees two big kinds: One kind is the frequency range processing law, one kind is the air zone processing frequency range processing method foundation convolutes the uses the revision image Fourier transformation the method realization to image enhancement processing. Image of point operations, point operations will enter the image map for the output image, output image each pixel gray value only by the corresponding input pixel value decision. Nonlinear point operations correspond to nonlinear mapping function, mapping, including the square of the typical functions, logarithmic functions, the interception function (window function), fieldvalued functions, such as multivalue quantization function. Threshold processing is the most mon point of a nonlinear operator, its function is to select a threshold value, the image binarization, and then use the resulting binary image for image segmentation and edge tracking processing. Keyword: the image intensification of matlab 、 gray、 filter 、武漢科技大學(xué)中南分校大學(xué)畢業(yè)論文 III 目 錄 摘 要 ............................................................................................................................. I ABSTRACT ...................................................................................................................... II 目 錄 ........................................................................................................................... III 第一章 緒論 .................................................................................................................. 5 第二章 MATLAB 的簡(jiǎn)介 ........................................................................................... 6 MATLAB 主要功能 ........................................................................................... 6 MATLAB 優(yōu)勢(shì) ................................................................................................... 7 工作平臺(tái)和編程環(huán)境 ............................................................................... 7 實(shí)用的程序語(yǔ)言 ....................................................................................... 7 計(jì)算機(jī)數(shù)據(jù)處理能力 ............................................................................... 7 圖形處理功能 ........................................................................................... 8 應(yīng)用的模塊集合工具箱 ........................................................................... 8 MATLAB 函數(shù)與數(shù)據(jù)類(lèi)型 ................................................................................ 8 整型 ........................................................................................................... 9 浮點(diǎn)數(shù) ....................................................................................................... 9 字符 ........................................................................................................... 9 常用的字符操作函數(shù) ............................................................................... 9 MATLAB 常用工具箱 ....................................................................................... 10 小結(jié) ................................................................................................................ 10 第三章 MATLAB 圖像增強(qiáng) ..................................................................................... 12 圖像增強(qiáng)技術(shù)概述 ........................................................................................ 12 空域?yàn)V波增強(qiáng) ......................................................................................... 12 平滑濾波器 ............................................................................................. 12 中值濾波器 ............................................................................................. 13 銳化濾波器 ............................................................................................. 14 低通濾波器 ............................................................................................. 14 高通濾波器 ............................................................................................. 15 同態(tài)濾波器 ............................................................................................. 15 IV MATLAB 圖像增強(qiáng)函數(shù) ................................................................................. 15 MATLAB 應(yīng)用于數(shù)字圖像增強(qiáng)和濾波 ......................................................... 16 目的 ......................................................................................................... 16 內(nèi)容 ......................................................................................................... 17 實(shí)驗(yàn) ................................................................................................................ 22 總結(jié) ........................................................................................................................ 39 致謝 .............................................................................