how can i remove object bigger than x pixel
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i know that bwareaopen remove small elements , but how can i remove object bigger than x pixels???
i want to just the letter to stay so how can i remove that 2 big objects???
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Sven
le 18 Déc 2014
Modifié(e) : Sven
le 18 Déc 2014
Hi Lukasz,
Here's an example that removes all objects greater than 1000 pixels in area. You probably have your own BW image and your own threshold that you can use in a similar way.
I = imread('rice.png');
BW = I>80;
cc = bwconncomp(BW);
stats = regionprops(cc);
threshold = 1000;
removeMask = [stats.Area]>threshold;
BW(cat(1,cc.PixelIdxList{removeMask})) = false;
Did this help you out?
Thanks, Sven.
2 commentaires
Ankit Sahay
le 8 Mai 2020
What does the second line do? The line where you have written:
BW = I>80;
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William Kemp
le 1 Août 2017
Its a little more compact if you use the built in function for it:
BW2 = bwpropfilt(BW,'Area',[0 x_pixels])
Where x_pixels is the maximum desired number of pixels in a BW object
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