how to calculate the area of different labels and remove the labels with smaller area??
2 次查看(过去 30 天)
显示 更早的评论
i labeled an image using CC = bwconncomp(BW).how to find area of different labels?? and how do i remove labels with smaller area???
0 个评论
采纳的回答
Michael Haderlein
2015-4-2
编辑:Michael Haderlein
2015-4-2
CC is a struct including the field PixelIdxList. If you define the area as number of pixels, you just need the number of elements of each cell:
elemsize=cellfun(@numel,CC.PixelIdxList);
To remove the small ones (I define "small" as "less than 100 pixels"):
BW2=BW;
BW2(vertcat((CC.PixelIdxList{cellfun(@numel,CC.PixelIdxList)<100})))=0;
You can of course do this without copying BW (just ignore the first line and use BW instead of BW2 in the second line).
Edit: If you also want to remove these from CC:
CC.PixelIdxList(cellfun(@numel,CC.PixelIdxList)<100)=[];
CC.NumObjects=numel(CC.PixelIdxList);
更多回答(1 个)
另请参阅
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!