Outline of shape in matrix using contour?

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Michelle De Luna
Michelle De Luna 2020-11-13
评论： Star Strider 2020-11-16
Hi all!
I have a matrix with various shapes. The matrix looks something like this (picture included below) when I use the imshow command. I was wondering if anyone knew how to outline the shapes so that only the outline of the shape (i.e. the boundaries) appears. I tried using contourf, and it works, but this flips the image upside down. Any other options?
I have included some code for reference:
shape = ncread(file, 'shape', [1,1,1,612,1], [inf, inf, inf, 1, inf])
imshow(shape)
contourf(shape)
Thanks in advance!

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Star Strider
Star Strider 2020-11-13
Try this:
figure
contourf(shape)
set(gca, 'YDir','reverse')
axis('equal')
That should fiip it right-side-up.
  2 个评论
Michelle De Luna
Michelle De Luna 2020-11-15
@Star Strider: This is exactly what I was hoping for! You're the best. Thank you very much! Please stay safe and take care. :)
Star Strider
Star Strider 2020-11-16
As always, my pleasure!
I very much appreciate your compliment! You, too!

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