IM_SUBSAMPLE(3)
NAME
im_subsample - subsample image by integer factor
SYNOPSIS
#include <vips/vips.h> int im_subsample(in, out, xsub, ysub) IMAGE *in, *out; int xsub, ysub;
DESCRIPTION
im_subsample() sub-samples image in by an x and y integer factor. It is
much faster than im_shrink(), especially for large partial images.
It works for any image type.
RETURN VALUE
The function returns 0 on success and -1 on error.
SEE ALSO
im_shrink(3), im_similarity(3), im_zoom(3)
COPYRIGHT
- 1989-1996 The National Gallery and Birkbeck College