实验三图像形态学处理

实验三 图像形态学处理 一 实验目的及要求 1 利用 MATLAB 研究二值形态学图像处理常用算法 2 掌握 MATLAB 形态学图像处理基本操作函数的使用方法 3 了了解形态学的基本应用 二 二 实验内容 一 研究以下程序 分析程序功能 输入执行各命令行 认真观察命令 执行的结果 熟悉程序中所使用函数的调用方法 改变有关参数 观察试验结 果 1 1 膨胀与腐蚀 膨胀与腐蚀 Dilation Dilation andand Erosion Erosion 1 对简单二值图像进行膨胀与腐蚀 clear all close all BW zeros 9 10 BW 4 6 4 7 1 BW SE strel square 3 BW1 imdilate BW SE BW2 imerode BW SE figure 1 subplot 1 2 1 imshow BW title Original Image subplot 1 2 2 imshow BW1 title Dilated Image figure 2 subplot 1 2 1 imshow BW title Original Image subplot 1 2 2 imshow BW2 title Eroded Image 修改参数 clear all close all BW zeros 9 10 BW 4 8 4 8 1 BW SE strel square 3 BW1 imdilate BW SE BW2 imerode BW SE figure 1 subplot 1 2 1 imshow BW title Original Image subplot 1 2 2 imshow BW1 title Dilated Image figure 2 subplot 1 2 1 imshow BW title Original Image subplot 1 2 2 imshow BW2 title Eroded Image 2 2 对文本图像进行膨胀与腐蚀对文本图像进行膨胀与腐蚀 clear all close all I imread C Users Administrator Desktop broken text tif SE 0 1 0 1 1 1 0 1 0 BW1 imdilate I SE BW2 imerode I SE figure 1 subplot 1 2 1 imshow I title Original Image subplot 1 2 2 imshow BW1 title Dilated Image figure 2 subplot 1 2 1 imshow I title Original Image subplot 1 2 2 imshow BW2 title Eroded Image 修改参数 clear all close all I imread C Users Administrator Desktop broken text tif SE 0 0 0 0 0 0 0 0 0 BW1 imdilate I SE BW2 imerode I SE figure 1 subplot 1 2 1 imshow I title Original Image subplot 1 2 2 imshow BW1 title Dilated Image figure 2 subplot 1 2 1 imshow I title Original Image subplot 1 2 2 imshow BW2 title Eroded Image 2 开 闭运算 开 闭运算 Open and Close clear all close all I imread cameraman tif bw im2bw I graythresh I se strel disk 5 bw2 imopen bw se subplot 1 2 1 imshow bw title Thresholded Image subplot 1 2 2 imshow bw2 title After opening bw3 imclose bw se figure subplot 1 2 1 imshow bw title Thresholded Image subplot 1 2 2 imshow bw3 title After Closing 修改参数 clear all close all I imread cameraman tif bw im2bw I graythresh I se strel disk 8 bw2 imopen bw se subplot 1 2 1 imshow bw title Thresholded Image subplot 1 2 2 imshow bw2 title After opening bw3 imclose bw se figure subplot 1 2 1 imshow bw title Thresholded Image subplot 1 2 2 imshow bw3 title After Closing 3 击中击中 击不中变换 击不中变换 hit and miss operation clear all close all bw 0 0 0 0 0 0 0 0 1 1 0 0 0 1 1 1 1 0 0 1 1 1 1 0 0 0 1 1 0 0 0 0 1 0 0 0 interval 0 1 1 1 1 1 0 1 0 bw2 bwhitmiss bw interval subplot 1 3 1 imshow bw title Original Image subplot 1 3 2 imshow interval title Interval Image subplot 1 3 3 imshow bw2 title after hit miss transformation 修改参数 clear all close all bw 0 0 0 0 0 0 0 0 1 1 0 0 0 1 1 1 1 0 0 1 1 1 1 0 0 0 1 1 0 0 0 0 1 0 0 0 interval 0 0 0 0 1 0 0 1 0 bw2 bwhitmiss bw interval subplot 1 3 1 imshow bw title Original Image subplot 1 3 2 imshow interval title Interval Image subplot 1 3 3 imshow bw2 title after hit miss transformation 4 细化与骨架抽取 细化与骨架抽取 clear all close all BW imread logo tif BW1 bwmorph BW thin Inf BW2 bwmorph BW skel Inf subplot 1 3 1 imshow BW title Original Image subplot 1 3 2 imshow BW1 title Thinned Image subplot 1 3 3 imshow BW2 title Image skeleton help bwmorph 二 用 MATLAB 二值数学形态学函数编程提取 rice gif 图像中的物体边界 clear all close all clc I imread C Users Administrator Desktop rice gif I double I 255 bw im2bw I graythresh I bw medfilt2 bw figure 1 subplot 221 imshow bw title orig