thresh(6D)

thresh - threshold one image with another

As shipped in IRIX 6.5.22. Unchanged since IRIX 6.5.

NAME
     thresh - threshold one image with another

SYNOPSIS
     thresh inimage outimage threshimage

DESCRIPTION
     thresh thresholds one image with another.  The threshimage is repeated to
     tile the entire surface of the input image.  Whenever the input image is
     greater than the threshimage, the output pixel is made 255 otherwise the
     output pixel is made 0.  This can be used to halftone or dither images.

SEE ALSO
     dotgen(6D) imgexp(6D)