大米计数实验

gaohaikuo1

大米技术实验

1. clear
   
2. close all
   
3. i= imread('rice.jpg');                  %读入图片
   
4. figure(1);imshow(i);title('原图');
   
5. BG=imopen(i,strel('disk',15));          % 获取图片的背景
   
6. figure(2);                           
   
7. imshow(BG);title('图像背景');
   
8. i2=imsubtract(i,BG);                    %减去图像背景
   
9. figure(3);
   
10. imshow(i2);title('减去背景后的图像');
    
11. level=graythresh(i2);
    
12. bw2=im2bw(i2,level);
    
13. [labeled,numObjects]=bwlabel(bw2,8);
    
14. t=max(max(labeled));  %大米粒计数总数为t
    
15. figure(4);
    
16. imshow(bw2);title(['The number of rice:',num2str(t)]);disp(t);

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gaohaikuo1

gaohaikuo1

gaohaikuo1

腐蚀和膨胀

1. function pushbutton_dilate_Callback(hObject, eventdata, handles)
   
2. % hObject    handle to pushbutton_dilate (see GCBO)
   
3. % eventdata  reserved - to be defined in a future version of MATLAB
   
4. % handles    structure with handles and user data (see GUIDATA)
   
5. global I_bw
   
6. se = strel('disk',21);
   
7. I_bw = imdilate(I_bw,se);%腐蚀改为imerode就可以了
   
8. axes(handles.axes1);%选择显示坐标系
   
9. imshow(I_bw,[]);

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gaohaikuo1

二值化程序

1. function pushbutton_bw_Callback(hObject, eventdata, handles)
   
2. global I_gray I_bw
   
3. axes(handles.axes1);
   
4. I_bw = I_gray>155;
   
5. imshow(I_bw,[]);

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