channel_algorithm.hpp File Reference

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Detailed Description

Channel algorithms.

Author:

Lubomir Bourdev and Hailin Jin
Adobe Systems Incorporated

Date:

2005-2007
Last updated on May 6, 2007

Definitions of standard GIL 8-bit, 16-bit, 32-bit channels

#include "gil_config.hpp"
#include "channel.hpp"
#include <boost/mpl/less.hpp>
#include <boost/mpl/integral_c.hpp>
#include <boost/mpl/greater.hpp>
#include <boost/type_traits.hpp>

Go to the source code of this file.

Namespaces
namespace	boost
namespace	boost::gil
namespace	boost::gil::detail
Classes
struct	channel_converter_unsigned< T, T >
	Converting a channel to itself - identity operation. More...
struct	channel_converter_unsigned_impl
	This is the default implementation. Performance specializatons are provided. More...
struct	channel_converter_unsigned< bits32f, DstChannelV >
struct	channel_converter_unsigned< bits32, bits32f >
	32 bit <-> float channel conversion More...
struct	channel_converter_unsigned< bits32f, bits32 >
	32 bit <-> float channel conversion More...
struct	channel_converter
	A unary function object converting between channel types. More...
struct	default_channel_converter
	Same as channel_converter, except it takes the destination channel by reference, which allows us to move the templates from the class level to the method level. This is important when invoking it on heterogeneous pixels. More...
struct	channel_multiplier_unsigned
	This is the default implementation. Performance specializatons are provided. More...
struct	channel_multiplier_unsigned< bits8 >
	Specialization of channel_multiply for 8-bit unsigned channels. More...
struct	channel_multiplier_unsigned< bits16 >
	Specialization of channel_multiply for 16-bit unsigned channels. More...
struct	channel_multiplier_unsigned< bits32f >
	Specialization of channel_multiply for float 0..1 channels. More...
struct	channel_multiplier
	A function object to multiply two channels. result = a * b / max_value. More...
Functions
template<typename DstChannel, typename SrcChannel>
channel_traits< DstChannel > ::value_type	channel_convert (SrcChannel src)
	Converting from one channel type to another.
uint32_t	div255 (uint32_t in)
uint32_t	div32768 (uint32_t in)
template<typename Channel>
channel_traits< Channel > ::value_type	channel_multiply (Channel a, Channel b)
	A function multiplying two channels. result = a * b / max_value.
template<typename Channel>
channel_traits< Channel > ::value_type	channel_invert (Channel x)
	Default implementation. Provide overloads for performance.