ce82941fa2
Add point2<T> alias template for backward compatibility with Boost <=1.68. Replace multiple point_t aliases of point<ptrdiff_t> with single defined in point.hpp. The point_t is common used to represent dimensions. Replace many uses of point<ptrdiff_t> with point_t. Apply reformatting around point2 changes to respect the line length limit. Follows up discussion in #154
35 lines
1.2 KiB
C++
35 lines
1.2 KiB
C++
//
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// Copyright 2005-2007 Adobe Systems Incorporated
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//
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// Distributed under the Boost Software License, Version 1.0
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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//
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#include <boost/gil.hpp>
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#include <boost/gil/extension/io/jpeg.hpp>
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#include <boost/gil/extension/numeric/sampler.hpp>
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#include <boost/gil/extension/numeric/resample.hpp>
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// Example for resample_pixels() in the numeric extension
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int main()
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{
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namespace gil = boost::gil;
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gil::rgb8_image_t img;
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gil::read_image("test.jpg", img, gil::jpeg_tag());
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// test resample_pixels
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// Transform the image by an arbitrary affine transformation using nearest-neighbor resampling
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gil::rgb8_image_t transf(gil::rgb8_image_t::point_t(gil::view(img).dimensions() * 2));
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gil::fill_pixels(gil::view(transf), gil::rgb8_pixel_t(255, 0, 0)); // the background is red
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gil::matrix3x2<double> mat =
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gil::matrix3x2<double>::get_translate(-gil::point<double>(200,250)) *
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gil::matrix3x2<double>::get_rotate(-15*3.14/180.0);
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gil::resample_pixels(const_view(img), gil::view(transf), mat, gil::nearest_neighbor_sampler());
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gil::write_view("out-affine.jpg", gil::view(transf), gil::jpeg_tag());
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return 0;
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}
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