im_black - make a black image
#include <vips/vips.h>
int im_black(out, x, y, bands)
IMAGE *out;
int x, y, bands;
im_black() makes a black uchar image of the specified size and number
of bands.
The function returns 0 on success and -1 on error.
im_openin(3), im_openout(3), im_setbuf(3).
National Gallery 1990 - 1993
J. Cupitt - 11/04/1990
11 April 1990