fluidimage.calcul.subpix

Find subpixel peak

class fluidimage.calcul.subpix.SubPix(method='centroid', nsubpix=None)

Bases: object

Subpixel finder

Todo

• evaluate subpix methods.

compute_subpix(correl, ix, iy, method=None, nsubpix=None)

Find peak

Parameters:

correl: numpy.ndarray

Normalized correlation

ix: integer

iy: integer

method: str {‘centroid’, ‘2d_gaussian’}

Notes

The two methods…

using linalg.solve (buggy?)

Functions

compute_subpix_2d_gaussian2(correl, ix, iy)

Classes

SubPix([method, nsubpix])

Subpixel finder