borders of simple image

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Jakub
Jakub 2013-11-4
回答： Image Analyst 2013-11-4
I have this image, ploted with pcolor:
How come that if i want to plot only borders it doesnt work?
bwmorph(Im,'remove')
The border on the top is missing...

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Image Analyst
Image Analyst 2013-11-4
pcolor() does not display the entire image. This is a known "feature" that I've been warning people about for years. Notice that you have only 19 by 19 pixels, not 20x20. Use imshow() instead. I recommend never using pcolor to look at regular, normal, rectangular images.

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Sean de Wolski
Sean de Wolski 2013-11-4
Can you please provide full reproduction steps? Repeating these steps below does not reproduce this behavior:
SE = strel('disk',10);
BW = SE.getnhood;
subplot(121)
imshow(BW);
BWr = bwmorph(BW,'remove');
subplot(122)
imshow(BWr)

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