NAME
im_simcontr - shows the effect of simultaneous contrast
SYNOPSIS
#include <vips/vips.h>
int im_simcontr( image, xsize, ysize )
IMAGE *image;
int xsize, ysize;
DESCRIPTION
im_simcontr() creates an unsigned char one band grey scale image of
sizes xsize by ysize. The created pattern consists of two neighbouring
squares one dark (left square) and one light (right square). The left
one containes a smaller light square and the right one containes a
darker square.
RETURN VALUE
The function returns 0 on success and -1 on error.
SEE ALSO
im_grey(3)
COPYRIGHT
N. Dessipris
AUTHOR
N. Dessipris - 10/05/1991
10 May 1991