im_benchmark - do something complicated
#include <vips/vips.h>
int im_benchmark( IMAGE *in, IMAGE *out )
im_benchmark(3) performs a complicated operation (based on a real
example of VIPS usage) on a LABPACK image. It is useful for
benchmarking the VIPS threading system. It should speed up (mostly)
linearly with more CPUs.
The function returns 0 on success and -1 on error.
6 Oct 2006