color map based on area
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A 3D volume is constructed from a stack of 2D masks (slices). How to color each slice based on the area of the object inside. Suppose the volume is a trunk.
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Walter Roberson
on 25 Jul 2018
Do you want all the pixels selected by the mask of a slice to be the same color? Or do you want to shade by value, different brightness of the color according to pixel value?
Answers (2)
Walter Roberson
on 25 Jul 2018
colorval = repmat( sum( sum( masks3d, 1), 2) ), size(masks3d, 1), size(masks3d, 2), 1 ) .* masks3d;
vol3d('CData', colorval', 'alpha', double(masks3d))
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