BWCROP
1
BRL-CAD
BRL-CAD

# bwcrop

crop black and white bw files

      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>.