#include <ossimBrightnessContrastSource.h>

Inheritance diagram for ossimBrightnessContrastSource:

Public Member Functions
	ossimBrightnessContrastSource ()
	Currently works in hsi space so must be one or three bands. More...

virtual ossimRefPtr< ossimImageData >	getTile (const ossimIrect &tileRect, ossim_uint32 resLevel=0)
	Will apply the algorithm: i*c + b where b is brightnes c is contrast i is the input value. More...

virtual void	setBrightnessContrast (ossim_float64 brightness, ossim_float64 contrast)

virtual void	setBrightness (ossim_float64 brightness)

virtual void	setContrast (ossim_float64 contrast)

virtual ossim_float64	getBrightness () const

virtual ossim_float64	getContrast () const

virtual void	initialize ()
	Calls base ossimImageSourceFilter::initialize() to reset connection if needed then nulls out tiles. More...

virtual void	setProperty (ossimRefPtr< ossimProperty > property)

virtual ossimRefPtr< ossimProperty >	getProperty (const ossimString &name) const

virtual void	getPropertyNames (std::vector< ossimString > &propertyNames) const

virtual bool	loadState (const ossimKeywordlist &kwl, const char *prefix=0)
	Keywords searched for by this method. More...

virtual bool	saveState (ossimKeywordlist &kwl, const char *prefix=0) const
	Keywords saved to list by this method. More...

Public Member Functions inherited from ossimImageSourceFilter
	ossimImageSourceFilter (ossimObject *owner=NULL)

	ossimImageSourceFilter (ossimImageSource *inputSource)

	ossimImageSourceFilter (ossimObject owner, ossimImageSource inputSource)

virtual void	getOutputBandList (std::vector< ossim_uint32 > &bandList) const

virtual ossim_uint32	getNumberOfInputBands () const

bool	canConnectMyInputTo (ossim_int32 inputIndex, const ossimConnectableObject *object) const
	required to be overriden by derived classes More...

virtual void	connectInputEvent (ossimConnectionEvent &event)

virtual void	disconnectInputEvent (ossimConnectionEvent &event)

virtual void	propertyEvent (ossimPropertyEvent &event)

virtual void	refreshEvent (ossimRefreshEvent &event)

Public Member Functions inherited from ossimImageSource
	ossimImageSource (ossimObject *owner=0)

	ossimImageSource (ossimObject *owner, ossim_uint32 inputListSize, ossim_uint32 outputListSize, bool inputListIsFixedFlag=true, bool outputListIsFixedFlag=true)

virtual	~ossimImageSource ()

virtual ossimRefPtr< ossimImageData >	getTile (const ossimIpt &origin, ossim_uint32 resLevel=0)

virtual bool	getTile (ossimImageData *result, ossim_uint32 resLevel=0)
	Method to get a tile. More...

virtual ossimObject *	getObject ()
	For RTTI support. More...

virtual const ossimObject *	getObject () const
	For RTTI support. More...

virtual void	getDecimationFactor (ossim_uint32 resLevel, ossimDpt &result) const
	Will return the decimation factor for the given resolution level. More...

virtual void	getDecimationFactors (std::vector< ossimDpt > &decimations) const
	Will return an array of all decimations for each resolution level. More...

virtual ossim_uint32	getNumberOfDecimationLevels () const
	Will return the number of resolution levels. More...

virtual ossim_uint32	getNumberOfOutputBands () const
	Returns the number of bands in a tile returned from this TileSource. More...

virtual ossimScalarType	getOutputScalarType () const
	This will be used to query the output pixel type of the tile source. More...

virtual ossim_uint32	getTileWidth () const
	Returns the default processing tile width. More...

virtual ossim_uint32	getTileHeight () const
	Returns the default processing tile height. More...

virtual double	getNullPixelValue (ossim_uint32 band=0) const
	Each band has a null pixel associated with it. More...

virtual double	getMinPixelValue (ossim_uint32 band=0) const
	Returns the min pixel of the band. More...

virtual double	getMaxPixelValue (ossim_uint32 band=0) const
	Returns the max pixel of the band. More...

virtual ossimIrect	getBoundingRect (ossim_uint32 resLevel=0) const
	This will return the bounding rect of the source. More...

virtual void	getBoundingRect (ossimIrect &rect, ossim_uint32 resLevel=0) const
	Gets the bounding rectangle of the source. More...

virtual void	getValidImageVertices (std::vector< ossimIpt > &validVertices, ossimVertexOrdering ordering=OSSIM_CLOCKWISE_ORDER, ossim_uint32 resLevel=0) const
	ordering specifies how the vertices should be arranged. More...

virtual ossimRefPtr< ossimImageGeometry >	getImageGeometry ()
	Returns the image geometry object associated with this tile source or NULL if not defined. More...

virtual void	setImageGeometry (const ossimImageGeometry *geom)
	Default implementation sets geometry of the first input to the geometry specified. More...

virtual void	saveImageGeometry () const
	Default method to call input's saveImageGeometry. More...

virtual void	saveImageGeometry (const ossimFilename &geometry_file) const
	Default method to call input's saveImageGeometry. More...

virtual bool	isIndexedData () const

Public Member Functions inherited from ossimSource
	ossimSource (ossimObject *owner=0)

	ossimSource (ossimObject *owner, ossim_uint32 inputListSize, ossim_uint32 outputListSize, bool inputListIsFixedFlag=true, bool outputListIsFixedFlag=true)

virtual	~ossimSource ()

virtual bool	isSourceEnabled () const

virtual void	enableSource ()

virtual void	disableSource ()

virtual bool	getEnableFlag () const

virtual void	setEnableFlag (bool flag)

virtual bool	isInitialized () const

virtual void	setInitializedFlag (bool flag)

virtual std::ostream &	print (std::ostream &out) const
	Outputs theErrorStatus as an ossimErrorCode and an ossimString. More...

Public Member Functions inherited from ossimConnectableObject
	ossimConnectableObject (ossimObject *owner=0)
	Base constructor of this object. More...

	ossimConnectableObject (ossimObject *owner, ossim_int32 inputListSize, ossim_int32 outputListSize, bool inputListIsFixedFlag=true, bool outputListIsFixedFlag=true)

virtual	~ossimConnectableObject ()

void	setId (const ossimId &id)
	All connectable objects will have id's. More...

const ossimId &	getId () const
	Will allow us to get this object's id. More...

const ossimObject *	getOwner () const
	Fetches the current owner, most likely a container but not limited to one. More...

virtual void	changeOwner (ossimObject *owner)
	Permits changing the object's owner. More...

virtual void	setDescription (const ossimString &description)

virtual ossimString	getDescription () const

virtual bool	isConnected (ossimConnectableObjectDirectionType direction=CONNECTABLE_DIRECTION_INPUT) const
	will check the direction specified to see if all slots are full. More...

	OSSIM_DEPRECATE_METHOD (virtual ossimConnectableObject *findConnectableObject(const ossimId &id))

	OSSIM_DEPRECATE_METHOD (virtual ossimConnectableObject *findObjectOfType(RTTItypeid typeId, ossimConnectableObjectDirectionType directionType, bool recurse=true))

	OSSIM_DEPRECATE_METHOD (virtual ossimConnectableObject *findObjectOfType(const ossimString &obj, ossimConnectableObjectDirectionType directionType, bool recurse=true))

	OSSIM_DEPRECATE_METHOD (virtual ossimConnectableObject *findInputObjectOfType(const ossimString &className))

virtual ossim_int32	findInputIndex (const ossimConnectableObject *object)
	Return a valid index of the input list if the passed in object is found else return -1. More...

virtual ossim_int32	findInputIndex (const ossimId &id)
	Return a valid index of the input list if the passed id is found else return -1. More...

virtual ossim_int32	findOutputIndex (const ossimConnectableObject *object)
	Return a valid index of the output list if the passed in object is found else return -1. More...

virtual ossim_int32	findOutputIndex (const ossimId &id)
	Return a valid index of the output list if the passed in object is found else return -1. More...

virtual ossim_int32	getMyInputIndexToConnectTo (ossimConnectableObject *object) const
	Should return the first available index to connect to. More...

virtual ossim_int32	getMyOutputIndexToConnectTo (ossimConnectableObject *object) const
	Should return the first available index to connect to. More...

virtual bool	canConnectMyOutputTo (ossim_int32 myOutputIndex, const ossimConnectableObject *object) const
	default implementation is to allow anyone to connect to us. More...

virtual void	disconnect (ossimConnectableObject *object=0)
	Will disconnect the object passed in. More...

virtual void	disconnect (const ossimId &id)
	Will disconnect the object passed in. More...

virtual ossimRefPtr< ossimConnectableObject >	disconnectMyInput (ossim_int32 inputIndex, bool disconnectOutputFlag=true, bool createEventFlag=true)
	Will disconnect the object at the given input index and generate a connection event. More...

virtual void	disconnectMyInput (ossimConnectableObject *input, bool disconnectOutputFlag=true, bool createEventFlag=true)
	Finds the index of the passed in input and calls disconnectMyInput(inputIndex, disconnectOutputFlag, createEventFlag);. More...

virtual void	disconnectMyInputs (ConnectableObjectList &inputList, bool disconnectOutputFlag=true, bool createEventFlag=true)

virtual ossimRefPtr< ossimConnectableObject >	disconnectMyOutput (ossim_int32 outputIndex, bool disconnectInputFlag=true, bool createEventFlag=true)
	Will disconnect the object at the given output index and generate a connection event. More...

virtual void	disconnectMyOutput (ossimConnectableObject *output, bool disconnectInputFlag=true, bool createEventFlag=true)
	Will disconnect the output object. More...

virtual void	disconnectMyOutputs (ConnectableObjectList &outputList, bool disconnectOutputFlag=true, bool createEventFlag=true)

virtual void	disconnectAllInputs ()
	Will disconnect all of the input objects. More...

virtual void	disconnectAllOutputs ()
	Will disconnect all of the output objects. More...

virtual ossim_int32	connectMyInputTo (ossimConnectableObject *inputObject, bool makeOutputConnection=true, bool createEventFlag=true)
	Will try to connect this objects input to the passed in object. More...

virtual ossim_int32	connectMyInputTo (ossim_int32 inputIndex, ossimConnectableObject *inputObject, bool makeOutputConnection=true, bool createEventFlag=true)
	Will connect the specified input to the passed in object. More...

virtual bool	connectMyInputTo (ConnectableObjectList &inputList, bool makeOutputConnection=true, bool createEventFlag=true)

virtual ossim_int32	connectMyOutputTo (ossimConnectableObject *outputObject, bool makeInputConnection=true, bool createEventFlag=true)
	Will try to connect this objects output to the passed in object. More...

virtual bool	connectMyOutputTo (ConnectableObjectList &outputList, bool makeInputConnection=true, bool createEventFlag=true)

virtual bool	connectInputList (ConnectableObjectList &inputList)
	Will disconnect itself from all inputs and reset to the passed in input list. More...

virtual bool	connectOutputList (ConnectableObjectList &outputList)
	Will disconnect itself from all outputs and reset to the passed in output list. More...

virtual ossim_uint32	getNumberOfInputs () const
	Returns the number of input objects. More...

virtual ossim_uint32	getNumberOfOutputs () const
	Return the number of output objects. More...

ossimConnectableObject *	getInput (ossim_uint32 index=0)
	returns the object at the specified index. More...

const ossimConnectableObject *	getInput (ossim_uint32 index=0) const
	returns the object at the specified index. More...

ossimConnectableObject *	getOutput (ossim_uint32 index=0)
	returns the object at the specified index. More...

const ossimConnectableObject *	getOutput (ossim_uint32 index=0) const
	returns the object at the specified index. More...

virtual void	setNumberOfInputs (ossim_int32 numberOfInputs)
	Will set the number of inputs. More...

virtual bool	getInputListIsFixedFlag () const

virtual bool	getOutputListIsFixedFlag () const

virtual void	setNumberOfOutputs (ossim_int32 numberOfInputs)
	Will set the number of outputs. More...

const ConnectableObjectList &	getInputList () const

const ConnectableObjectList &	getOutputList () const

ConnectableObjectList &	getInputList ()

ConnectableObjectList &	getOutputList ()

	OSSIM_DEPRECATE_METHOD (virtual void findAllObjectsOfType(ConnectableObjectList &result, const RTTItypeid &typeInfo, bool recurse=true))

	OSSIM_DEPRECATE_METHOD (virtual void findAllObjectsOfType(ConnectableObjectList &result, const ossimString &className, bool recurse=true))

virtual void	propagateEventToOutputs (ossimEvent &event)

virtual void	propagateEventToInputs (ossimEvent &event)

virtual void	setProperty (const ossimString &name, const ossimString &value)

virtual ossim_uint32	saveStateOfAllInputs (ossimKeywordlist &kwl, bool saveThisStateFlag=true, ossim_uint32 objectIndex=1, const char *prefix=0) const
	Save the state of all inputs to a keyword list. More...

virtual bool	fillContainer (ossimConnectableContainer &container)
	Inserts this object and all of its children and inputs into the container provided. More...

bool	moveInputUp (const ossimId &id)
	Moves the input connection matching id up one in the connection list. More...

bool	moveInputDown (const ossimId &id)
	Moves the input connection matching id down one in the connection list. More...

bool	moveInputToTop (const ossimId &id)
	Moves the input connection matching id to the top of the connection list. More...

bool	moveInputToBottom (const ossimId &id)
	Moves the input connection matching id to the bottom of the connection list. More...

virtual void	accept (ossimVisitor &visitor)
	We will add a visitor interface for all connectable objects. More...

Public Member Functions inherited from ossimObject
	ossimObject ()

virtual	~ossimObject ()

virtual ossimObject *	dup () const

virtual ossimString	getShortName () const

virtual ossimString	getLongName () const

virtual ossimString	getClassName () const

virtual RTTItypeid	getType () const

virtual bool	canCastTo (ossimObject *obj) const

virtual bool	canCastTo (const RTTItypeid &id) const

virtual bool	canCastTo (const ossimString &parentClassName) const

virtual bool	isEqualTo (const ossimObject &obj, ossimCompareType compareType=OSSIM_COMPARE_FULL) const

Public Member Functions inherited from ossimReferenced
	ossimReferenced ()

	ossimReferenced (const ossimReferenced &)

ossimReferenced &	operator= (const ossimReferenced &)

void	ref () const
	increment the reference count by one, indicating that this object has another pointer which is referencing it. More...

void	unref () const
	decrement the reference count by one, indicating that a pointer to this object is referencing it. More...

void	unref_nodelete () const
	decrement the reference count by one, indicating that a pointer to this object is referencing it. More...

int	referenceCount () const

Public Member Functions inherited from ossimListenerManager
	ossimListenerManager ()

virtual	~ossimListenerManager ()

virtual void	fireEvent (ossimEvent &event)

virtual bool	addListener (ossimListener *listener)

virtual bool	removeListener (ossimListener *listener)

virtual bool	findListener (ossimListener *listener)

Public Member Functions inherited from ossimPropertyInterface
	ossimPropertyInterface ()

virtual	~ossimPropertyInterface ()

virtual ossimString	getPropertyValueAsString (const ossimString &name) const

void	getPropertyList (std::vector< ossimRefPtr< ossimProperty > > &propertyList) const

void	setProperties (std::vector< ossimRefPtr< ossimProperty > > &propertyList)

Public Member Functions inherited from ossimErrorStatusInterface
	ossimErrorStatusInterface ()

virtual	~ossimErrorStatusInterface ()

virtual ossimErrorCode	getErrorStatus () const

virtual ossimString	getErrorStatusString () const

virtual void	setErrorStatus (ossimErrorCode error_status) const

virtual void	setErrorStatus () const

virtual void	clearErrorStatus () const

bool	hasError () const

Public Member Functions inherited from ossimConnectableObjectListener
	ossimConnectableObjectListener ()

virtual	~ossimConnectableObjectListener ()

virtual void	processEvent (ossimEvent &event)
	ProcessEvent. More...

virtual void	objectDestructingEvent (ossimObjectDestructingEvent &)

virtual void	connectionEvent (ossimConnectionEvent &)

virtual void	disconnectOutputEvent (ossimConnectionEvent &)

virtual void	connectOutputEvent (ossimConnectionEvent &)

virtual void	addObjectEvent (ossimContainerEvent &)

virtual void	removeObjectEvent (ossimContainerEvent &)

virtual void	containerEvent (ossimContainerEvent &)

Public Member Functions inherited from ossimListener
	ossimListener ()

virtual	~ossimListener ()

void	enableListener ()

void	disableListener ()

void	setListenerEnableFlag (bool flag)

bool	isListenerEnabled () const

bool	getListenerEnableFlag () const

Protected Member Functions
virtual	~ossimBrightnessContrastSource ()

void	allocate ()
	Called to initialize tiles by first get tile when theTile or theNormTile are not initialized. More...

void	processRgbTile ()
	Applies the brightness contrast to tile. More...

void	processNBandTile ()
	Applies the brightness contrast to tile. More...

Protected Member Functions inherited from ossimImageSourceFilter
virtual	~ossimImageSourceFilter ()

Protected Member Functions inherited from ossimImageSource
	ossimImageSource (const ossimImageSource &rhs)

const ossimImageSource &	operator= (const ossimImageSource &)

Protected Member Functions inherited from ossimSource
	ossimSource (const ossimSource &rhs)

const ossimSource &	operator= (const ossimSource &rhs)

Protected Member Functions inherited from ossimConnectableObject
ossimConnectableObject *	findObjectOfType (ConnectableObjectList *connectableList, ossimVisitor &visitor)

Protected Member Functions inherited from ossimReferenced
virtual	~ossimReferenced ()

Protected Member Functions inherited from ossimListenerManager
	ossimListenerManager (const ossimListenerManager &rhs)

Protected Attributes
ossim_float64	theBrightness

ossim_float64	theContrast

ossimRefPtr< ossimImageData >	theTile

ossimRefPtr< ossimImageData >	theNormTile

Protected Attributes inherited from ossimImageSourceFilter
ossimImageSource *	theInputConnection

Protected Attributes inherited from ossimSource
bool	theEnableFlag

bool	theInitializedFlag

Protected Attributes inherited from ossimConnectableObject
ossimId	theId

ossimString	theDescription

ossimObject *	theOwner

bool	theInputListIsFixedFlag
	Indicates whether the theInputObjectList is fixed. More...

bool	theOutputListIsFixedFlag
	Indicates whether the theOutputObjectList is fixed. More...

ConnectableObjectList	theInputObjectList
	Holds a list of input objects. More...

ConnectableObjectList	theOutputObjectList
	Holds a list of output objects. More...

Protected Attributes inherited from ossimListenerManager
std::list< ossimListener * >	theListenerList

bool	theEnabledFlag

std::list< ossimListener * >	theDelayedAdd

std::list< ossimListener * >	theDelayedRemove

bool	theFireEventFlag

Protected Attributes inherited from ossimErrorStatusInterface
ossimErrorCode	theErrorStatus

Protected Attributes inherited from ossimListener
bool	theListenerEnableFlag

Additional Inherited Members
Public Types inherited from ossimConnectableObject
enum	ossimConnectableObjectDirectionType { CONNECTABLE_DIRECTION_NONE = 0, CONNECTABLE_DIRECTION_INPUT = 1, CONNECTABLE_DIRECTION_OUTPUT = 2 }

typedef std::vector< ossimRefPtr< ossimConnectableObject > >	ConnectableObjectList

Detailed Description

Definition at line 14 of file ossimBrightnessContrastSource.h.

Constructor & Destructor Documentation

◆ ossimBrightnessContrastSource()

ossimBrightnessContrastSource::ossimBrightnessContrastSource ( )

Currently works in hsi space so must be one or three bands.

Todo: Make work with nband.

◆ ~ossimBrightnessContrastSource()

ossimBrightnessContrastSource::~ossimBrightnessContrastSource ( )

protectedvirtual

Definition at line 37 of file ossimBrightnessContrastSource.cpp.

38 {

39 }

Member Function Documentation

◆ allocate()

void ossimBrightnessContrastSource::allocate ( )

protected

Called to initialize tiles by first get tile when theTile or theNormTile are not initialized.

Definition at line 177 of file ossimBrightnessContrastSource.cpp.

References ossimImageDataFactory::create(), ossimImageData::getNumberOfBands(), ossimImageData::initialize(), ossimImageDataFactory::instance(), ossimSource::isSourceEnabled(), OSSIM_FLOAT32, ossimImageSourceFilter::theInputConnection, theNormTile, theTile, and ossimRefPtr< T >::valid().

Referenced by getTile().

 {
    if( isSourceEnabled() && theInputConnection )
    {
       theTile = ossimImageDataFactory::instance()->create(this, this);
       if(theTile.valid())
       {
          theNormTile = ossimImageDataFactory::instance()->create(this,
                                                                  OSSIM_FLOAT32,
                                                                  theTile->getNumberOfBands());
       }
       if(theTile.valid() && theNormTile.valid())
       {
          theTile->initialize();
          theNormTile->initialize();
       }
       else
       {
          theTile     = 0;
          theNormTile = 0;
       }
    }
 }

◆ getBrightness()

ossim_float64 ossimBrightnessContrastSource::getBrightness ( ) const

virtual

Returns: Brightness value between -1.0 and +1.0.

Definition at line 306 of file ossimBrightnessContrastSource.cpp.

References theBrightness.

Referenced by getProperty(), and setContrast().

 {
    return theBrightness;
 }

◆ getContrast()

ossim_float64 ossimBrightnessContrastSource::getContrast ( ) const

virtual

Returns: Contrast value between 0.0 and +2.0.

Definition at line 311 of file ossimBrightnessContrastSource.cpp.

References theContrast.

Referenced by getProperty(), and setBrightness().

 {
    return theContrast;
 }

◆ getProperty()

ossimRefPtr< ossimProperty > ossimBrightnessContrastSource::getProperty ( const ossimString & name ) const

virtual

Reimplemented from ossimImageSourceFilter.

Definition at line 222 of file ossimBrightnessContrastSource.cpp.

References getBrightness(), getContrast(), ossimImageSourceFilter::getProperty(), ossimNumericProperty::ossimNumericPropertyType_FLOAT64, ossimProperty::setCacheRefreshBit(), ossimNumericProperty::setNumericType(), and ossimString::toString().

 {
    if(name == "brightness")
    {
       ossimNumericProperty* numeric = new ossimNumericProperty(name,
                                                                ossimString::toString(getBrightness()),
                                                                -1.0, 1.0);
       numeric->setNumericType(ossimNumericProperty::ossimNumericPropertyType_FLOAT64);
       numeric->setCacheRefreshBit();
       return numeric;
    }
    else if(name == "contrast")
    {
       ossimNumericProperty* numeric = new ossimNumericProperty(name,
                                                                ossimString::toString(getContrast()),
                                                                0.0, 20.0);
       numeric->setNumericType(ossimNumericProperty::ossimNumericPropertyType_FLOAT64);
       numeric->setCacheRefreshBit();
       return numeric;
    }
 
     return ossimImageSourceFilter::getProperty(name);
 }

◆ getPropertyNames()

void ossimBrightnessContrastSource::getPropertyNames ( std::vector< ossimString > & propertyNames ) const

virtual

Reimplemented from ossimImageSourceFilter.

Definition at line 246 of file ossimBrightnessContrastSource.cpp.

References ossimImageSourceFilter::getPropertyNames().

 {
    ossimImageSourceFilter::getPropertyNames(propertyNames);
    
    propertyNames.push_back("brightness");
    propertyNames.push_back("contrast");
 }

◆ getTile()

ossimRefPtr< ossimImageData > ossimBrightnessContrastSource::getTile	(	const ossimIrect &	tileRect,
		ossim_uint32	resLevel = `0`
	)

virtual

Will apply the algorithm: i*c + b where b is brightnes c is contrast i is the input value.

Reimplemented from ossimImageSource.

Definition at line 41 of file ossimBrightnessContrastSource.cpp.

References allocate(), ossimImageData::copyNormalizedBufferToTile(), ossimImageData::copyTileToNormalizedBuffer(), ossimImageData::getBuf(), ossimDataObject::getDataObjectStatus(), ossimImageData::getNumberOfBands(), ossimImageSource::getTile(), ossimSource::isSourceEnabled(), OSSIM_EMPTY, OSSIM_NULL, processNBandTile(), processRgbTile(), ossimDataObject::setDataObjectStatus(), ossimImageData::setImageRectangle(), theBrightness, theContrast, ossimImageSourceFilter::theInputConnection, theNormTile, theTile, ossimRefPtr< T >::valid(), and ossimImageData::validate().

Referenced by ossimBrightnessMatch::getTile().

 {
    ossimRefPtr<ossimImageData> tile = NULL;
 
    if(theInputConnection)
    {
       tile = theInputConnection->getTile(tileRect, resLevel);
       
       if(!tile.valid())
       {
          return tile;
       }
 
       if(!isSourceEnabled() ||
          (tile->getDataObjectStatus()==OSSIM_NULL)||
          (tile->getDataObjectStatus()==OSSIM_EMPTY)||
          ( (theBrightness == 0.0) && (theContrast   == 1.0) ) )
       {
          return tile;
       }
 
       if(!theTile.valid() || !theNormTile.valid())
       {
          allocate();
       }
       
       if(!theTile.valid() || !theNormTile.valid())
       {
          return tile;
       }
 
       theTile->setImageRectangle(tileRect);
       theNormTile->setImageRectangle(tileRect);
 
       tile->copyTileToNormalizedBuffer((ossim_float32*)theNormTile->getBuf());
       theNormTile->setDataObjectStatus(tile->getDataObjectStatus());
 
       if (theNormTile->getNumberOfBands() == 3)
       {
          processRgbTile();
       }
       else
       {
          processNBandTile();
       }
       
       theTile->copyNormalizedBufferToTile((ossim_float32*)
                                           theNormTile->getBuf());
       theTile->validate();
       return theTile;
    }
    
    return tile;
 }

◆ initialize()

void ossimBrightnessContrastSource::initialize ( )

virtual

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.

Reimplemented from ossimImageSourceFilter.

Definition at line 169 of file ossimBrightnessContrastSource.cpp.

References ossimImageSourceFilter::initialize(), theNormTile, and theTile.

 {
    ossimImageSourceFilter::initialize();
 
    theTile     = 0;
    theNormTile = 0;
 }

◆ loadState()

bool ossimBrightnessContrastSource::loadState	(	const ossimKeywordlist &	kwl,
		const char *	prefix = `0`
	)

virtual

Keywords searched for by this method.

brightness: 0.0

contrast: 1.0

Reimplemented from ossimImageSourceFilter.

Definition at line 255 of file ossimBrightnessContrastSource.cpp.

References ossimKeywordlist::find(), ossimImageSourceFilter::loadState(), theBrightness, theContrast, and ossimString::toDouble().

 {
    const char* brightness = kwl.find(prefix, "brightness");
    const char* contrast = kwl.find(prefix, "contrast");
 
    if(brightness)
    {
       theBrightness = ossimString(brightness).toDouble();
    }
    if(contrast)
    {
       theContrast   = ossimString(contrast).toDouble();
    }
    
    return ossimImageSourceFilter::loadState(kwl, prefix);
 }

◆ processNBandTile()

void ossimBrightnessContrastSource::processNBandTile ( )

protected

Applies the brightness contrast to tile.

This method simply applies brightness contrast to all bands. Called if input does not have three bands.

Definition at line 148 of file ossimBrightnessContrastSource.cpp.

References ossimImageData::getFloatBuf(), ossimImageData::getMinNormalizedPix(), ossimImageData::getNumberOfBands(), ossimImageData::getSizePerBand(), theBrightness, theContrast, and theNormTile.

Referenced by getTile().

 {
    const ossim_uint32  BANDS = theNormTile->getNumberOfBands();
    const ossim_uint32  PPB   = theNormTile->getSizePerBand();
    const ossim_float32 MP    = theNormTile->getMinNormalizedPix();
    
    for (ossim_uint32 band = 0; band < BANDS; ++band)
    {
       ossim_float32* buf = theNormTile->getFloatBuf(band);
 
       for (ossim_uint32 i = 0; i < PPB; ++i)
       {
          if (buf[i] != 0.0)
          {
             ossim_float32 p = buf[i] * theContrast + theBrightness;
             buf[i] = (p < 1.0) ? ( (p > MP) ? p : 0.0 ) : 1.0;
          }
       }
    }
 }

◆ processRgbTile()

void ossimBrightnessContrastSource::processRgbTile ( )

protected

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.

Definition at line 97 of file ossimBrightnessContrastSource.cpp.

References ossimNormRgbVector::getB(), ossimImageData::getBuf(), ossimDataObject::getDataObjectStatus(), ossimNormRgbVector::getG(), ossimImageData::getHeight(), ossimHsiVector::getI(), ossimNormRgbVector::getR(), ossimImageData::getWidth(), OSSIM_DEFAULT_MIN_PIX_NORM_FLOAT, OSSIM_FULL, ossimHsiVector::setI(), theBrightness, theContrast, and theNormTile.

Referenced by getTile().

 {
    ossim_float32* bands[3];
 
    bands[0] = (ossim_float32*)theNormTile->getBuf(0);
    bands[1] = (ossim_float32*)theNormTile->getBuf(1);
    bands[2] = (ossim_float32*)theNormTile->getBuf(2);
 
    ossim_uint32 offset = 0;
    ossim_uint32 maxIdx = theNormTile->getWidth()*theNormTile->getHeight();
    ossimHsiVector hsi;
    ossim_float32 i;
    if(theNormTile->getDataObjectStatus() == OSSIM_FULL)
    {
       for(offset = 0; offset < maxIdx; ++offset)
       {
          ossimNormRgbVector rgb(bands[0][offset], bands[1][offset], bands[2][offset]);
          hsi = rgb;
          i = (hsi.getI()*theContrast + theBrightness);
          if(i < OSSIM_DEFAULT_MIN_PIX_NORM_FLOAT) i = OSSIM_DEFAULT_MIN_PIX_NORM_FLOAT;
          if(i > 1.0) i = 1.0;
          hsi.setI(i);
          rgb = hsi;
          bands[0][offset] = rgb.getR();
          bands[1][offset] = rgb.getG();
          bands[2][offset] = rgb.getB();
       }
    }
    else
    {
       for(offset = 0; offset < maxIdx; ++offset)
       {
          if((bands[0][offset] != 0.0)&&
             (bands[1][offset] != 0.0)&&
             (bands[2][offset] != 0.0))
          {
             ossimNormRgbVector rgb(bands[0][offset], bands[1][offset], bands[2][offset]);
             hsi = rgb;
             i = (hsi.getI()*theContrast + theBrightness);
             if(i < OSSIM_DEFAULT_MIN_PIX_NORM_FLOAT) i = OSSIM_DEFAULT_MIN_PIX_NORM_FLOAT;
             if(i > 1.0) i = 1.0;
             hsi.setI(i);
             rgb = hsi;
             bands[0][offset] = rgb.getR();
             bands[1][offset] = rgb.getG();
             bands[2][offset] = rgb.getB();
          }
       }
    }
 }

◆ saveState()

bool ossimBrightnessContrastSource::saveState	(	ossimKeywordlist &	kwl,
		const char *	prefix = `0`
	)		const

virtual

Keywords saved to list by this method.

brightness: 0.0

contrast: 1.0

Reimplemented from ossimImageSourceFilter.

Definition at line 273 of file ossimBrightnessContrastSource.cpp.

References ossimKeywordlist::add(), ossimImageSourceFilter::saveState(), theBrightness, and theContrast.

 {
    kwl.add(prefix,
            "brightness",
            theBrightness,
            true);
    kwl.add(prefix,
            "contrast",
            theContrast,
            true);
 
    return ossimImageSourceFilter::saveState(kwl, prefix);   
 }

◆ setBrightness()

void ossimBrightnessContrastSource::setBrightness ( ossim_float64 brightness )

virtual

Parameters

brightness Value between -1.0 and +1.0 with zero being no brightness offset.

Definition at line 296 of file ossimBrightnessContrastSource.cpp.

References getContrast(), and setBrightnessContrast().

Referenced by ossimBrightnessMatch::computeInputBrightness(), and ossimBrightnessMatch::setProperty().

 {
    setBrightnessContrast(brightness, getContrast());
 }

◆ setBrightnessContrast()

void ossimBrightnessContrastSource::setBrightnessContrast	(	ossim_float64	brightness,
		ossim_float64	contrast
	)

virtual

Parameters

brightness	Value between -1.0 and +1.0 with zero being no brightness offset.
contrast	Value between 0.0 and 2.0 with 1.0 being no contrast adjustment.

Definition at line 289 of file ossimBrightnessContrastSource.cpp.

References theBrightness, and theContrast.

Referenced by setBrightness(), and setContrast().

 {
    theBrightness = brightness;
    theContrast   = contrast;
 }

◆ setContrast()

void ossimBrightnessContrastSource::setContrast ( ossim_float64 contrast )

virtual

Parameters

contrast Value between 0.0 and 2.0 with 1.0 being no contrast adjustment.

Definition at line 301 of file ossimBrightnessContrastSource.cpp.

References getBrightness(), and setBrightnessContrast().

 {
    setBrightnessContrast(getBrightness(), contrast);
 }

◆ setProperty()

void ossimBrightnessContrastSource::setProperty ( ossimRefPtr< ossimProperty > property )

virtual

Reimplemented from ossimImageSourceFilter.

Definition at line 201 of file ossimBrightnessContrastSource.cpp.

References ossimImageSourceFilter::setProperty(), theBrightness, and theContrast.

 {
    if(!property)
    {
       return;
    }
    ossimString name = property->getName();
    if(name == "brightness")
    {
       theBrightness = property->valueToString().toDouble();
    }
    else if(name == "contrast")
    {
       theContrast = property->valueToString().toDouble();
    }
    else
    {
       ossimImageSourceFilter::setProperty(property);
    }
 }