Creating matrix from 3d mesh

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Sultan
Sultan 2019-5-2
评论： Walter Roberson 2019-5-2
Initially I had a matrix (512x512), I created a 3d mesh using mesh() function. The figure showed me peaks. I wanted to extract the matrix for each peak and then calculate the volume. I came across two cases for the solution:
  1. https://de.mathworks.com/matlabcentral/answers/277512-how-to-find-peaks-in-3d-mesh
  2. https://stackoverflow.com/questions/45106812/find-volume-of-3d-peaks-in-matlab
In both cases the data generated in the form of X, Y, Z. This is however not my case. How can I extract matrices for each peak?Capture_peaks.JPG
  1 个评论
Walter Roberson
Walter Roberson 2019-5-2
islocalmax() with the 'all' option perhaps?
https://www.mathworks.com/help/matlab/ref/islocalmax.html
You might want to do some pre-processing, such as setting all of the values less than half max height to be the minima.
See also https://www.mathworks.com/help/images/ref/imregionalmax.html

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