/usr/include/ossim/imaging/ossimBrightnessContrastSource.h is in libossim-dev 2.2.2-1.
This file is owned by root:root, with mode 0o644.
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// Copyright (C) 2000 ImageLinks Inc.
//
// License: See LICENSE.txt file in the top level directory.
//
// Author: Garrett Potts
//
//*************************************************************************
// $Id: ossimBrightnessContrastSource.h 15766 2009-10-20 12:37:09Z gpotts $
#ifndef ossimBrightnessContrastSource_HEADER
#define ossimBrightnessContrastSource_HEADER
#include <ossim/imaging/ossimImageSourceFilter.h>
class OSSIM_DLL ossimBrightnessContrastSource : public ossimImageSourceFilter
{
public:
/**
* Currently works in hsi space so must be one or three bands.
*
* Todo: Make work with nband.
*/
ossimBrightnessContrastSource();
/**
* Will apply the algorithm:
* i*c + b
* where b is brightnes
* c is contrast
* i is the input value.
*
*/
virtual ossimRefPtr<ossimImageData> getTile(const ossimIrect& tileRect,
ossim_uint32 resLevel=0);
/**
* @param brightness Value between -1.0 and +1.0 with zero being no
* brightness offset.
*
* @param contrast Value between 0.0 and 2.0 with 1.0 being no contrast
* adjustment.
*/
virtual void setBrightnessContrast(ossim_float64 brightness,
ossim_float64 contrast);
/**
* @param brightness Value between -1.0 and +1.0 with zero being no
* brightness offset.
*/
virtual void setBrightness(ossim_float64 brightness);
/**
* @param contrast Value between 0.0 and 2.0 with 1.0 being no contrast
* adjustment.
*/
virtual void setContrast(ossim_float64 contrast);
/** @return Brightness value between -1.0 and +1.0. */
virtual ossim_float64 getBrightness()const;
/** @return Contrast value between 0.0 and +2.0. */
virtual ossim_float64 getContrast()const;
/**
* Calls base ossimImageSourceFilter::initialize() to reset connection if
* needed then nulls out tiles.
*
* @note This does not initialize tiles intentionally to avoid repeated
* deletes and news. Tiles will be initialized by allocate() method on
* the first getTile call after an initialize.
*/
virtual void initialize();
/*---------------------- PROPERTY INTERFACE ---------------------------*/
virtual void setProperty(ossimRefPtr<ossimProperty> property);
virtual ossimRefPtr<ossimProperty> getProperty(const ossimString& name)const;
virtual void getPropertyNames(std::vector<ossimString>& propertyNames)const;
/*--------------------- PROPERTY INTERFACE END ------------------------*/
/**
* Keywords searched for by this method.
*
* brightness: 0.0
*
* contrast: 1.0
*/
virtual bool loadState(const ossimKeywordlist& kwl,
const char* prefix=0);
/**
* Keywords saved to list by this method.
*
* brightness: 0.0
*
* contrast: 1.0
*/
virtual bool saveState(ossimKeywordlist& kwl,
const char* prefix=0)const;
protected:
virtual ~ossimBrightnessContrastSource();
/**
* Called to initialize tiles by first get tile when theTile or theNormTile
* are not initialized.
*/
void allocate();
/**
* Applies the brightness contrast to tile. This method works in hsi
* space on the intensity channel; thus, preserving hue and saturation
* of an rgb pixel. Called if input has three bands.
*/
void processRgbTile();
/**
* Applies the brightness contrast to tile. This method simply applies
* brightness contrast to all bands. Called if input does not have
* three bands.
*/
void processNBandTile();
ossim_float64 theBrightness;
ossim_float64 theContrast;
ossimRefPtr<ossimImageData> theTile;
ossimRefPtr<ossimImageData> theNormTile;
TYPE_DATA
};
#endif /* End of "#ifndef ossimBrightnessContrastSource_HEADER" */
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