fn_affinity

Contents

Syntax

[y weight] = fn_affinity(x,M[,'linear|cubic'][,datatype])

Description

Perform affine transformation on an image.

Input:
- x           2D or 3D array
- shift       2-element vector or 2-by-N array (N being the number of
              frames)
- method      'linear' or 'cubic' [default]
- datatype    data type to save output, typically 'double' or 'single',
              default is same as data

Output:
- y       the translated image or movie (points where data is not defined
          have a NaN value)
- weight  image the same size of x with values btw 0 and 1: weighting
          system for getting values of y as a continuous-derivative
          function of shift, even at integer values of shift
          use also logical(weight) to get the pixels whose values are
          defined in y
- J       derivative of y with respect to shift (points where it is not
          defined also have a NaN value)
- dweight derivative of weight with respect to shift

See also fn_register, fn_translate

Source

Thomas Deneux

Copyright 2014-2017

Published with MATLAB® R2015a