detect circle between some shapes

2013 5 18
1 个回答
更新时间：2021 8 20
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hi,in my image has some shapes(circle,square,triangle) . how can I detect circle between other shapes? and can tell me how many circle there is in my image.thanks in advance

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Image Analyst
Image Analyst 2013-5-18

0 个投票

Have you tried imfindcircle() in the Image Processing Toolbox? Otherwise try hough() or somehow find all the objects and extract the circles based on their circularity = perimeter^2 / (4*pi*Area).

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safa
safa 2013-5-19
i wrote my code according imfindcircle() , but it didn't work.
I = imread('c:\safa\test.bmp');
b=rgb2gray(I);
[centers, radii, metric] = imfindcircles(b,[5 30]);
viscircles(centers, radii,'EdgeColor','b');
subplot (2,3,1), imshow (b);
Image Analyst
Image Analyst 2013-5-19
You forgot to tell us where you uploaded test.bmp.

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safa
2013-5-18

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