[GRASS-dev] New georectifying module in TclTk

[Michael Barton]

For RMS error calculation, I just need to use either the forward or reverse,
right? I don't see where I need both directions.

Michael
__________________________________________
Michael Barton, Professor of Anthropology
School of Human Evolution & Social Change
Center for Social Dynamics and Complexity
Arizona State University

phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton


> From: Glynn Clements <glynn at gclements.plus.com>
> Date: Tue, 6 Jun 2006 05:52:54 +0100
> To: Michael Barton <michael.barton at asu.edu>
> Cc: Helena Mitasova <hmitaso at unity.ncsu.edu>, GRASS developers list
> <grass-dev at grass.itc.it>
> Subject: Re: [GRASS-dev] New georectifying module in TclTk
> 
> compute_transformation() starts by calling Compute_equation() (in
> imagery/i.points/equ.c), which calls I_compute_georef_equations().
> That computes the best-fit affine transformation (forward and inverse)
> from the control points.