optFlowHorn

PURPOSE ^

Calculate optical flow using Horn & Schunck.

SYNOPSIS ^

function [Vx,Vy] = optFlowHorn( I1, I2, sigma, show, alpha, nIter )

DESCRIPTION ^

 Calculate optical flow using Horn & Schunck.

 USAGE
  [Vx,Vy] = optFlowHorn( I1, I2, [sigma], [show], [alpha], [nIter] )

 INPUTS
  I1, I2      - input images to calculate flow between
  sigma       - [1] amount to smooth by (may be 0)
  show        - [0] figure to use for display (no display if == 0)
  alpha       - [.1] smoothness constraint
  nIter       - [500] number of iterations (speed vs accuracy)

 OUTPUTS
  Vx, Vy      - x,y components of flow  [Vx>0->right, Vy>0->down]

 EXAMPLE

 See also optFlowCorr, optFlowLk

 Piotr's Image&Video Toolbox      Version 2.66
 Copyright 2012 Piotr Dollar.  [pdollar-at-caltech.edu]
 Please email me if you find bugs, or have suggestions or questions!
 Licensed under the Simplified BSD License [see external/bsd.txt]

CROSS-REFERENCE INFORMATION ^

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