/Src/Dependencies/Boost/libs/gil/example/affine.cpp

 1/*
 2    Copyright 2005-2007 Adobe Systems Incorporated
 3   
 4    Use, modification and distribution are subject to the Boost Software License,
 5    Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 6    http://www.boost.org/LICENSE_1_0.txt).
 7
 8    See http://opensource.adobe.com/gil for most recent version including documentation.
 9*/
10
11/*************************************************************************************************/
12
13///////////////////////
14////  NOTE: This sample file uses the numeric extension, which does not come with the Boost distribution.
15////  You may download it from http://opensource.adobe.com/gil 
16///////////////////////
17
18/// \file
19/// \brief Test file for resample_pixels() in the numeric extension
20/// \author Lubomir Bourdev and Hailin Jin
21/// \date February 27, 2007
22
23#include <boost/gil/image.hpp>
24#include <boost/gil/typedefs.hpp>
25#include <boost/gil/extension/io/jpeg_io.hpp>
26#include <boost/gil/extension/numeric/sampler.hpp>
27#include <boost/gil/extension/numeric/resample.hpp>
28
29int main() {
30    using namespace boost::gil;
31
32    rgb8_image_t img;
33    jpeg_read_image("test.jpg",img);
34
35    // test resample_pixels
36    // Transform the image by an arbitrary affine transformation using nearest-neighbor resampling
37    rgb8_image_t transf(rgb8_image_t::point_t(view(img).dimensions()*2));
38    fill_pixels(view(transf),rgb8_pixel_t(255,0,0));    // the background is red
39
40    matrix3x2<double> mat = matrix3x2<double>::get_translate(-point2<double>(200,250)) *
41                            matrix3x2<double>::get_rotate(-15*3.14/180.0);
42    resample_pixels(const_view(img), view(transf), mat, nearest_neighbor_sampler());
43    jpeg_write_view("out-affine.jpg", view(transf));
44
45    return 0;
46}