File: resize.cpp

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/* compile with:
 *
 *      g++ -g -Wall resize.cpp `pkg-config vips-cpp --cflags --libs`
 */

#include <vips/vips8>

using namespace vips;

int
main(int argc, char **argv)
{
	if (VIPS_INIT(argv[0]))
		vips_error_exit(NULL);

	if (argc != 3)
		vips_error_exit("usage: %s infile outfile", argv[0]);

	VImage in = VImage::new_from_file(argv[1],
		VImage::option()
			->set("access", "sequential"));

	VImage out = in.resize(0.2,
		VImage::option()
			->set("kernel", "cubic")
			->set("vscale", 0.2));

	out.write_to_file(argv[2]);

	vips_shutdown();

	return 0;
}