diff options
Diffstat (limited to 'boost/gil/extension/numeric/resample.hpp')
| -rw-r--r-- | boost/gil/extension/numeric/resample.hpp | 55 |
1 files changed, 22 insertions, 33 deletions
diff --git a/boost/gil/extension/numeric/resample.hpp b/boost/gil/extension/numeric/resample.hpp index ec619d57a1..e2e63a11e0 100644 --- a/boost/gil/extension/numeric/resample.hpp +++ b/boost/gil/extension/numeric/resample.hpp @@ -1,35 +1,24 @@ -/* - 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). -*/ - -/*************************************************************************************************/ - +// +// Copyright 2005-2007 Adobe Systems Incorporated +// +// Distributed under 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 +// #ifndef BOOST_GIL_EXTENSION_NUMERIC_RESAMPLE_HPP #define BOOST_GIL_EXTENSION_NUMERIC_RESAMPLE_HPP -#include <boost/lambda/lambda.hpp> -#include <boost/lambda/bind.hpp> - -#include <boost/gil/extension/dynamic_image/dynamic_image_all.hpp> - #include <boost/gil/extension/numeric/affine.hpp> +#include <boost/gil/extension/dynamic_image/dynamic_image_all.hpp> -//////////////////////////////////////////////////////////////////////////////////////// -/// \file -/// \brief support for generic image resampling -/// NOTE: The code is for example use only. It is not optimized for performance -/// \author Lubomir Bourdev and Hailin Jin \n -/// Adobe Systems Incorporated -/// \date 2005-2007 \n -/// -//////////////////////////////////////////////////////////////////////////////////////// +#include <boost/lambda/bind.hpp> +#include <boost/lambda/lambda.hpp> namespace boost { namespace gil { +// Support for generic image resampling +// NOTE: The code is for example use only. It is not optimized for performance + /////////////////////////////////////////////////////////////////////////// //// //// resample_pixels: set each pixel in the destination view as the result of a sampling function over the transformed coordinates of the source view @@ -61,7 +50,7 @@ void resample_pixels(const SrcView& src_view, const DstView& dst_view, const Map /////////////////////////////////////////////////////////////////////////// //// -//// resample_pixels when one or both image views are run-time instantiated. +//// resample_pixels when one or both image views are run-time instantiated. //// /////////////////////////////////////////////////////////////////////////// @@ -72,8 +61,8 @@ namespace detail { Sampler _sampler; resample_pixels_fn(const MapFn& dst_to_src, const Sampler& sampler) : _dst_to_src(dst_to_src), _sampler(sampler) {} - template <typename SrcView, typename DstView> BOOST_FORCEINLINE void apply_compatible(const SrcView& src, const DstView& dst) const { - resample_pixels(src, dst, _dst_to_src, _sampler); + template <typename SrcView, typename DstView> BOOST_FORCEINLINE void apply_compatible(const SrcView& src, const DstView& dst) const { + resample_pixels(src, dst, _dst_to_src, _sampler); } }; } @@ -97,7 +86,7 @@ void resample_pixels(const V1& src, const any_image_view<Types2>& dst, const Map /// \brief resample_pixels when both the source and the destination are run-time specified /// If invoked on incompatible views, throws std::bad_cast() /// \ingroup ImageAlgorithms -template <typename Sampler, typename SrcTypes, typename DstTypes, typename MapFn> +template <typename Sampler, typename SrcTypes, typename DstTypes, typename MapFn> void resample_pixels(const any_image_view<SrcTypes>& src, const any_image_view<DstTypes>& dst, const MapFn& dst_to_src, Sampler sampler=Sampler()) { apply_operation(src,dst,detail::resample_pixels_fn<Sampler,MapFn>(dst_to_src,sampler)); } @@ -111,8 +100,8 @@ void resample_pixels(const any_image_view<SrcTypes>& src, const any_image_view<D // Extract into dst the rotated bounds [src_min..src_max] rotated at 'angle' from the source view 'src' // The source coordinates are in the coordinate space of the source image // Note that the views could also be variants (i.e. any_image_view) -template <typename Sampler, typename SrcMetaView, typename DstMetaView> -void resample_subimage(const SrcMetaView& src, const DstMetaView& dst, +template <typename Sampler, typename SrcMetaView, typename DstMetaView> +void resample_subimage(const SrcMetaView& src, const DstMetaView& dst, double src_min_x, double src_min_y, double src_max_x, double src_max_y, double angle, const Sampler& sampler=Sampler()) { @@ -121,8 +110,8 @@ void resample_subimage(const SrcMetaView& src, const DstMetaView& dst, double dst_width = std::max<double>((double)(dst.width()-1),1); double dst_height = std::max<double>((double)(dst.height()-1),1); - matrix3x2<double> mat = - matrix3x2<double>::get_translate(-dst_width/2.0, -dst_height/2.0) * + matrix3x2<double> mat = + matrix3x2<double>::get_translate(-dst_width/2.0, -dst_height/2.0) * matrix3x2<double>::get_scale(src_width / dst_width, src_height / dst_height)* matrix3x2<double>::get_rotate(-angle)* matrix3x2<double>::get_translate(src_min_x + src_width/2.0, src_min_y + src_height/2.0); @@ -135,7 +124,7 @@ void resample_subimage(const SrcMetaView& src, const DstMetaView& dst, //// /////////////////////////////////////////////////////////////////////////// -template <typename Sampler, typename SrcMetaView, typename DstMetaView> +template <typename Sampler, typename SrcMetaView, typename DstMetaView> void resize_view(const SrcMetaView& src, const DstMetaView& dst, const Sampler& sampler=Sampler()) { resample_subimage(src,dst,0.0,0.0,(double)src.width(),(double)src.height(),0.0,sampler); } |