RETRO commands
PROGRAM NAME
vgettilt - Compute the Best-Fit Plane Parameters for Input File (K1)
DESCRIPTION
vgettilt
computes the least-squares best fit plane for an image.
The plane will be given by f(x,y)=Ax+By+C
with the tilt coefficients in inverse pixels.
If the mask file is specified then only those points in the input image with
a corresponding nonzero mask file pixel are used in the computation. The
number of points actually contributing to the computation is given with the
output data.
The output device or file is specified after the -f option, a filename
of # will send the output to stderr.
REQUIRED ARGUMENTS
- -i
-
type: infile
desc: input image
- -f
-
type: outfile
desc: output ASCII file
OPTIONAL ARGUMENTS
- -m
-
type: infile
desc: statistics operation masking image
default: {none}
EXAMPLES
vgettilt -i input -f tilt_info -m mask
SEE ALSO
vtilt, vdetilt
RESTRICTIONS
vgettilt
will not operate on bit or complex
data storage types, and will not work on multiband images.
REFERENCES
COPYRIGHT
Copyright (C) 1993 - 1997, Khoral Research, Inc. ("KRI") All rights reserved.