A class that does histogram equalisation for eight-bit samples. More...

Public Member Functions
	G_STATIC_ASSERT (sizeof(value_type)==1)

	Histogram ()
	Constructor. More...

	Histogram (bool active)
	Constructor, optionally for an unusable, zero-cost object.

void	clear ()
	Clears the map.

void	add (value_type)
	Adds a pixel to the histogram. More...

void	compute ()
	Computes the equalisation map once all the pixels have been add()ed. More...

value_type	map (value_type) const
	Does the equalisation mapping.

bool	active () const
	Returns true if constructed as active.

Detailed Description

A class that does histogram equalisation for eight-bit samples.

The implementation goes for speed over space by holding a complete map of pixel values rather than just the pixel values that appear in the image.

Definition at line 41 of file grhistogram.h.

Constructor & Destructor Documentation

Gr::Histogram::Histogram ( )

inline

Constructor.

Postcondition: active()

Definition at line 104 of file grhistogram.h.

void Gr::Histogram::add ( value_type n )

inline

Adds a pixel to the histogram.

Precondition: active()

Definition at line 117 of file grhistogram.h.

void Gr::Histogram::compute ( )

inline

Computes the equalisation map once all the pixels have been add()ed.

Definition at line 129 of file grhistogram.h.

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