实验三图像形态学处理.docx

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、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．膨胀与腐蚀(Dilation and Erosion)(1)对简单二值图像进行膨胀与腐蚀clear all, close allBW = zeros(9,10); BW(4:6,4:7) = 1;BWSE = 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 allBW = zeros(9,10); BW(4:8,4:8) = 1;BWSE = 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)对文本图像进行膨胀与腐蚀clear all, close allI = 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 allI = 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（Open and Close）clear all, close allI = 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)su