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I want each object space
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Help me please.
img=rgb2gray(imread('E:\image\nok.jpg'));
subplot(3,3,1),imshow(img);
buf2=imadjust(img,[0.2 0.8],[0 1],0.8);
subplot(3,3,2),imshow(buf2);title('Gray-level tranform');
oup=medfilt2(buf2);
disp=mat2gray(oup);
%threshold=graythresh(img);
[junk threshold]=edge(disp,'sobel');
fudgeFactor=.5;
BWs=edge(img,'sobel',threshold*fudgeFactor);
subplot(3,3,3),imshow(BWs);
se90=strel('line',9,90);
se0=strel('line',9,0);
BWsdil=imdilate(BWs,[se90 se0]);
subplot(3,3,4),imshow(BWsdil);
BWdfill=imfill(BWsdil,'holes');
subplot(3,3,5),imshow(BWdfill);
BWnobord=imclearborder(BWdfill,4);
subplot(3,3,6),imshow(BWnobord);
bw=bwareaopen(BWnobord,200);
se=strel('disk',9);
bw=imopen(bw,se);
%bw=imfill(bw,'holes');
subplot(3,3,7),imshow(bw);title('Open');
[B,L] = bwboundaries(bw,'noholes');
subplot(3,3,8),imshow(label2rgb(L,@jet,[.5 .5 .5]));
hold on;
for k = 1 :length(B)
boundary = B{k};
plot(boundary(:,2),boundary(:,1),'w','LineWidth',2)
end
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Answers (2)
Walter Roberson
on 30 Jan 2014
Once you have the objects labeled, use regionprops('Area') on the label matrix.
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Image Analyst
on 30 Jan 2014
I don't know what you mean by object space. If you want the area of each region, you can look at my Image Segmentation Tutorial where it goes over that in well commented detail. http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862
In short
measurements = regionprops(bw, 'Area');
allAreas = [measurements.Area]; % Get all areas into an array
[sortedAreas, sortOrder] = sort(allAreas, 'descend'); % Option, if you want to sort them.
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