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???
采纳的回答
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 个评论
Image Analyst
2014-12-20
Lukasz's Flag removed and moved here as a comment:
Yes, it helped me.
Ankit Sahay
2020-5-8
What does the second line do? The line where you have written:
BW = I>80;
更多回答（1 个）
William Kemp
2017-8-1
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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