makecr(1)

NAME
makecr - create circumscribing rectangles in an image

SYNOPSIS
makecr [-options] in_file | stdin out_file

DESCRIPTION
makecr finds connected components of black pixels in a binary image, and creates circumscribing rectangles. The file format of in_file is binary pbm(5). The circumscribing rectangles are written on out_file, whose file format is d4file(4). Each rectangle is denoted by a 4-tuple, the position of the left-top corner, the width, and the height of the rectangle. If the string "stdin" is passed instead of in_file, makecr reads image from standard input.

OPTIONS

-bstr N
    Add N black pixels to both ends of each horizontal black run before finding connected components.

-rls N
    Apply Runlength Smoothing Algorithm. The horizontal white runs which is shorter than N pixels are filled with black pixels before finding connected components.

SEE ALSO
pbm(5), d4file(4)

AUTHOR
Copyright (C) 1994-1997 Hideaki Goto E-Mail: hgot@ecip.tohoku.ac.jp, hgot@aso.ecei.tohoku.ac.jp