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gil/example/affine.cpp
Mateusz Łoskot aac69ac846 Add first batch of examples to Jamfile
Update examples to catch up with recent changes and ensure they both
compile without errors (using GCC 5).
2018-09-21 23:02:49 +02:00

48 lines
1.7 KiB
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/*
Copyright 2005-2007 Adobe Systems Incorporated
Use, modification and distribution are subject to the Boost Software License,
Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt).
See http://opensource.adobe.com/gil for most recent version including documentation.
*/
/*************************************************************************************************/
///////////////////////
//// NOTE: This sample file uses the numeric extension, which does not come with the Boost distribution.
//// You may download it from http://opensource.adobe.com/gil
///////////////////////
/// \file
/// \brief Test file for resample_pixels() in the numeric extension
/// \author Lubomir Bourdev and Hailin Jin
/// \date February 27, 2007
#include <boost/gil.hpp>
#include <boost/gil/extension/io/jpeg.hpp>
#include <boost/gil/extension/numeric/sampler.hpp>
#include <boost/gil/extension/numeric/resample.hpp>
int main()
{
namespace gil = boost::gil;
gil::rgb8_image_t img;
gil::read_image("test.jpg", img, gil::jpeg_tag());
// test resample_pixels
// Transform the image by an arbitrary affine transformation using nearest-neighbor resampling
gil::rgb8_image_t transf(gil::rgb8_image_t::point_t(gil::view(img).dimensions() * 2));
gil::fill_pixels(gil::view(transf), gil::rgb8_pixel_t(255, 0, 0)); // the background is red
gil::matrix3x2<double> mat =
gil::matrix3x2<double>::get_translate(-gil::point2<double>(200,250)) *
gil::matrix3x2<double>::get_rotate(-15*3.14/180.0);
gil::resample_pixels(const_view(img), gil::view(transf), mat, gil::nearest_neighbor_sampler());
gil::write_view("out-affine.jpg", gil::view(transf), gil::jpeg_tag());
return 0;
}