Question on localizeExtremumViaQuadraticFit()

[lilithgrigoryan]

Hi!

I would like to ask for a comment on line 180 in pysift.py file. Here you are computing keypoint.octave field which is composed of three quantities. Can you please give some hint what does third value mean and maybe some small explanation why it should be like that. (to be more concrete the quantity is computed as 'int(round((extremum_update[2] + 0.5) * 255))')

Many thanks in advance!

[rmislam]

Hi @lilithgrigoryan ! Thanks for your interest in this repo.
Sure, let me think about how to explain this.