BWCROP(1)

NAME
bwcrop - crop black and white bw files

SYNOPSIS

bwcrop in.bw out.bw

bwcrop in.bw out.bw inwidth outwidth outheight ulx uly urx ury lrx lry llx lly

DESCRIPTION

Bwcrop crops any quadrilateral out of an arbitrarily large bw(5) input file (in.bw), squares that region to a given height and width output size, and writes the result to out.bw. The first form of bwcrop prompts for all parameters it needs to do the cropping. All responses should be pixel counts or first quadrant coordinates. The second form allows all of the needed parameters to be given on the command line and is intended for use from shell scripts. The coordinate names stand for upper-left-x, lower-right-y, etc.

The nearest input pixel is selected for each output pixel. No interpolation is done by this program.

SEE ALSO

brlcad(1), bwrect(1), bwscale(1), bw(5).

AUTHOR

BRL-CAD Team

COPYRIGHT

This software is Copyright (c) 1989-2013 by the United States Government as represented by U.S. Army Research Laboratory.

BUG REPORTS

Reports of bugs or problems should be submitted via electronic mail to <devs@brlcad.org>.