kth_channel_deref_fn< K, SrcP > Struct Template Reference

Function object that returns a grayscale reference of the K-th channel (specified as a template parameter) of a given reference. Models: PixelDereferenceAdaptorConcept.If the input is a pixel value or constant reference, the function object is immutable. Otherwise it is mutable (and returns non-const reference to the k-th channel) More...

#include <image_view_factory.hpp>

Public Types
typedef kth_channel_deref_fn < K, const_ref_t >	const_t
typedef pixel_value_type < channel_t, gray_layout_t > ::type	value_type
typedef pixel_reference_type < channel_t, gray_layout_t, false, false >::type	const_reference
typedef SrcP	argument_type
typedef mpl::if_c< is_mutable, ref_t, value_type >::type	reference
typedef reference	result_type

Public Member Functions
	BOOST_STATIC_CONSTANT (bool, is_mutable=pixel_is_reference< SrcP >::value &&pixel_reference_is_mutable< SrcP >::value)
template<typename P >
	kth_channel_deref_fn (const kth_channel_deref_fn< K, P > &)
result_type	operator() (argument_type srcP) const

Detailed Description

template<int K, typename SrcP>
struct boost::gil::detail::kth_channel_deref_fn< K, SrcP >

Function object that returns a grayscale reference of the K-th channel (specified as a template parameter) of a given reference. Models: PixelDereferenceAdaptorConcept.

If the input is a pixel value or constant reference, the function object is immutable. Otherwise it is mutable (and returns non-const reference to the k-th channel)

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The documentation for this struct was generated from the following file:

• image_view_factory.hpp