libs/gil/doc/html/_downloads/resize.cpp

   1 //
   2 // Copyright 2005-2007 Adobe Systems Incorporated
   3 //
   4 // Distributed under the Boost Software License, Version 1.0
   5 // See accompanying file LICENSE_1_0.txt or copy at
   6 // http://www.boost.org/LICENSE_1_0.txt
   7 //
   8 #include <boost/gil.hpp>
   9 #include <boost/gil/extension/io/jpeg.hpp>
  10 #include <boost/gil/extension/numeric/sampler.hpp>
  11 #include <boost/gil/extension/numeric/resample.hpp>
  12
  13 // Example for resize_view() in the numeric extension
  14
  15 int main()
  16 {
  17     namespace bg = boost::gil;
  18
  19     bg::rgb8_image_t img;
  20     bg::read_image("test.jpg", img, bg::jpeg_tag{});
  21
  22     // test resize_view
  23     // Scale the image to 100x100 pixels using bilinear resampling
  24     bg::rgb8_image_t square100x100(100, 100);
  25     bg::resize_view(bg::const_view(img), bg::view(square100x100), bg::bilinear_sampler{});
  26     bg::write_view("out-resize.jpg", bg::const_view(square100x100), bg::jpeg_tag{});
  27
  28     return 0;
  29 }