im_insert - insert one image into another
int im_insert(in, ins, out, x, y)
IMAGE *in, *insub, *out;
int x, y;
im_insert() inserts one image into another. ins is inserted into image
in at position x, y relative to the top left hand corner of in. out is
made large enough to hold all of both in and ins. Any areas of out not
coming from either in or ins are set to black (binary 0). If ins
overlaps in, ins will appear on top of in. Both images must have the
same number of bands and the same BandFmt.
The function returns 0 on success and -1 on error.
im_extract(3), im_lrjoin(3), im_lrmerge(3)
J. Cupitt - 11/04/1990
11 April 1990