Package pyvision :: Package other :: Module surf

Module surf

Created on Feb 2, 2011

Author: bolme

Functions

surf(im, mask=None, extended=False, hessianThreshold=500, nOctaves=3, nOctaveLayers=4)
Keypoints contain a 0: center point 1 sign of laplacian (-1,0,+1) 2 scale - diameter or radius 3 angle 4 response value

source code

Variables

[hide private]

__package__ = 'pyvision.other'

Function Details

[hide private]

surf(im, mask=None, extended=False, hessianThreshold=500, nOctaves=3, nOctaveLayers=4)

source code


Keypoints contain a
  0: center point
  1 sign of laplacian (-1,0,+1)
  2 scale - diameter or radius
  3 angle
  4 response value

Descriptors contain 64 floating point numbers

@param im: image to extract features from.
@type im:  pv.Image
@param mask: a mask that controls where features are extracted from.
@type mask:  OpenCV 8bit image
@return: (keypoints,descriptors)