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=head1 NAME
cpclean - Remove wrong control points by statistical methods
=head1 SYNOPSIS
B<cpclean> [options] I<input.pto>
=head1 DESCRIPTION
B<cpclean> uses statistical methods to remove wrong control points.
Step 1 optimises all images pairs, calculates for each pair mean
and standard deviation and removes all control points
with error bigger than mean+n*sigma.
Step 2 optimises the whole panorama, calculates mean and standard deviation
for all control points and removes all control points with error
bigger than mean+n*sigma.
=head1 OPTIONS
=over
=item B<--output|-o> output.pto
Output Hugin PTO file. Default: '<filename>_clean.pto'.
=item B<--max-distance|-n> num
distance factor for checking (default: 2)
(cps with an error > mean + this factor*sigma will be removed)
=item B<--pairwise-checking|-p>
do only image pair cp checking (skip step 2)
=item B<--whole-pano-checking|-w>
do only whole panorama checking (skip step 1)
=item B<--dont-optimize|-s>
skip optimisation step when checking the whole panorama
=item B<--check-line-cp|-l>
also include line control points for calculation and filtering in step 2
=item B<--verbose|-v>
verbose output during optimisation
=item B<--help|-h>
shows help
=back
=head1 AUTHORS
Thomas Modes
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