基于matlab的硬币计数代码和实验结果

clear all;

clc;

RGB = imread('yb.png');

I = rgb2gray(RGB);

subplot(231),imshow(I)

% »Ò¶ÈͼÏñ¶þÖµ»¯£¬È«¾ÖãÐÖµ·Ö¸î×î´ó»¯Àà¼ä·½²î

level = graythresh(I);

BW = im2bw(I,level);

subplot(232),imshow(BW)

% ¿×¶´Ìî³äºÍÐÎ̬ѧ¿ªÔËËã

BW1 = imfill(BW,'holes');

subplot(233),imshow(BW1)

se1 = strel('square',10);

BW2 = imopen(BW1,se1);

subplot(234),imshow(BW2)

% ÐÎ̬ѧ¸¯Ê´ÔËË㣬²¿·ÖÄ¿±êÎïÓÐÕ³Á¬ÏÖÏó£¬È¥³ýÕ³Á¬

se2 = strel('disk',15);

BW3 = imerode(BW2,se2);

subplot(235),imshow(BW3)

% ÐÎ̬ѧ¿ªÔËË㣬ȥ³ýÓ°Ïì¼ÆÊýµÄ¸ÉÈÅ¿ÅÁ£

se3 = strel('disk',5);

BW4 = imopen(BW3,se3);

subplot(236),imshow(BW4)

[L,N] = bwlabel(BW4); % N¼´ÎªÄ¿±ê¸öÊý

% ±ê¼ÇÄ¿±êÎï

figure,imshow(RGB)

hold on

for k = 1:N

[r,c] = find(L == k);

rbar = mean(r);

cbar = mean(c);

plot(cbar,rbar,'marker','*','markeredgecolor','b','markersize',10); end

% ¶Ô»°¿òÏÔʾĿ±êÎï¸öÊý

h = dialog('Name','Ä¿±ê¸öÊý','position',[500 500 200 70]); %

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uicontrol('Style','text','units','pixels','position',[45 40 120 20],... 'fontsize',15,'parent',h,'string',num2str(N)); % ´´½¨Îı¾ÄÚÈÝ uicontrol('units','pixels','position',[80 10 50 20],'fontsize',10,... 'parent',h,'string','È·¶¨','callback','delete(gcf)'); %

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