trim_saddle_points_legacy

trim_saddle_points_legacy(peaks, dt, maxiter=10)[source]

Removes peaks that were mistakenly identified because they lied on a saddle or ridge in the distance transform that was not actually a true local peak.

Parameters:

  • peaks (ND-array) – A boolean image containing True values to mark peaks in the distance transform (dt)

  • dt (ND-array) – The distance transform of the pore space for which the true peaks are sought.

  • maxiter (int) – The maximum number of iterations to run while eroding the saddle points. The default is 10, which is usually not reached; however, a warning is issued if the loop ends prior to removing all saddle points.

Returns:

image – An image with fewer peaks than the input image

Return type:

ND-array

Notes

This version of the function was included in versions of PoreSpy < 2. It is too aggressive in trimming peaks, so was rewritten for PoreSpy >= 2. This is included here for legacy reasons

References

[1] Gostick, J. “A versatile and efficient network extraction algorithm using marker-based watershed segmenation”. Physical Review E. (2017)

Examples

Click here to view online example.