www.pudn.com > Matlab_Image_Processing.rar > ex1.m

I = imread('chrimage.bmp'); 
figure,imshow(I); 
I2 = rgb2gray(I); 
s = size(I2); 
I4 = 255*ones(s(1), s(2), 'uint8'); 
I5 = imsubtract(I4,I2); 
I3 = medfilt2(I5,[5 5]); 
I3 = imadjust(I3); 
bw = im2bw(I3, 0.3); 
bw = bwareaopen(bw, 10); 
figure,imshow(bw); 
[labeled,numObjects] = bwlabel(bw,4); 
RGB_label=label2rgb(labeled,@spring,'c','shuffle'); 
figure,imshow(RGB_label); 
chrdata = regionprops(labeled,'basic') 
allchrs = [chrdata.Area]; 
num = size(allchrs) 
nbins = 20; 
figure,hist(allchrs,nbins); 
title(num(2))