void make_color_bars( const image_view_t& view) { typedef detail::color_bars_fn deref_t; typedef deref_t::point_t point_t; typedef boost::gil::virtual_2d_locator<deref_t,false> locator_t; typedef boost::gil::image_view<locator_t> my_virt_view_t; point_t dims( view.width(), view.height()); my_virt_view_t bars( dims, locator_t( point_t(0,0), point_t(1,1), deref_t( dims))); boost::gil::copy_pixels( bars, view); }
void box_blur_rgba( const const_image_view_t& src, const image_view_t& tmp, const image_view_t& dst, float hradius, float vradius, int iters) { RAMEN_ASSERT( src.width() == tmp.height()); RAMEN_ASSERT( src.height() == tmp.width()); if( hradius == 0 && vradius == 0) { boost::gil::copy_pixels( src, dst); return; } box_blur_rgba_( src, tmp, dst, hradius, vradius, iters); }
void invert_alpha( const const_image_view_t& src, const image_view_t& dst) { RAMEN_ASSERT( src.width() == dst.width()); RAMEN_ASSERT( src.height() == dst.height()); boost::gil::tbb_transform_pixels( src, dst, detail::invert_alpha_fun()); }