SPATMOD::IMAGE::FILTER_ZOOM Class Reference

Filter to zoom image (up or down) by fixed amount. More...

#include <spatmod/imagefilterzoom.h>

Inheritance diagram for SPATMOD::IMAGE::FILTER_ZOOM:

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List of all members.

Public Types
enum	PREVSTAGEUSAGE { PREVSTAGEUSAGE_None, PREVSTAGEUSAGE_Exact, PREVSTAGEUSAGE_Nearest }
Public Member Functions
	FILTER_ZOOM (STAGE *pPreviousStage, bool TakeOwnership, INT32 NumColumns, INT32 NumRows, PREVSTAGEUSAGE PrevStageUsage, RESAMPLEMETHOD ResampleMethod)
	FILTER_ZOOM (STAGE *pPreviousStage, bool TakeOwnership, const BASE &RefImage, PREVSTAGEUSAGE PrevStageUsage, RESAMPLEMETHOD ResampleMethod)
	FILTER_ZOOM (STAGE *pPreviousStage, bool TakeOwnership, double Scale, PREVSTAGEUSAGE PrevStageUsage, RESAMPLEMETHOD ResampleMethod)
virtual	~FILTER_ZOOM ()

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Detailed Description

Filter to zoom image (up or down) by fixed amount.

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Member Enumeration Documentation

enum SPATMOD::IMAGE::FILTER_ZOOM::PREVSTAGEUSAGE

How to use previous stage to help in zooming if supported.

Enumerator:

PREVSTAGEUSAGE_None	Don't use previous stage zooming capability at all.
PREVSTAGEUSAGE_Exact	Use previous stage if supports exact zoom value.
PREVSTAGEUSAGE_Nearest	Use nearest supported zoom value for previous stage and zoom from there.

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Constructor & Destructor Documentation

SPATMOD::IMAGE::FILTER_ZOOM::FILTER_ZOOM	(	STAGE *	pPreviousStage,
		bool	TakeOwnership,
		double	Scale,
		PREVSTAGEUSAGE	PrevStageUsage,
		RESAMPLEMETHOD	ResampleMethod
	)

Construct with specified scale.

RESAMPLEMETHOD_Average is only supported for zoom factors resulting in integer sampling and only up to 1/16.

Parameters:

	pPreviousStage	Pointer to previous stage
	TakeOwnership	Filter takes ownership of previous stage and will delete when needed
	Scale	Scale, negative values equivalent to 1/abs(scale)
	PrevStageUsage	How to use previous stage to help in zooming if supported
	ResampleMethod	Resampling method if zooming not done entirely by previous stage

SPATMOD::IMAGE::FILTER_ZOOM::FILTER_ZOOM	(	STAGE *	pPreviousStage,
		bool	TakeOwnership,
		const BASE &	RefImage,
		PREVSTAGEUSAGE	PrevStageUsage,
		RESAMPLEMETHOD	ResampleMethod
	)

Construct with scale to match specified reference image.

Zoom values based on reference image are used during construction, so must have total dimension available. RESAMPLEMETHOD_Average is only supported for zoom factors resulting in integer sampling and only up to 1/16.

Parameters:

	pPreviousStage	Pointer to previous stage
	TakeOwnership	Filter takes ownership of previous stage and will delete when needed
	RefImage	Reference image to match in total dimensions
	PrevStageUsage	How to use previous stage to help in zooming if supported
	ResampleMethod	Resampling method if zooming not done entirely by previous stage

SPATMOD::IMAGE::FILTER_ZOOM::FILTER_ZOOM	(	STAGE *	pPreviousStage,
		bool	TakeOwnership,
		INT32	NumColumns,
		INT32	NumRows,
		PREVSTAGEUSAGE	PrevStageUsage,
		RESAMPLEMETHOD	ResampleMethod
	)

Construct with scale to match specified dimensions.

RESAMPLEMETHOD_Average is only supported for zoom factors resulting in integer sampling and only up to 1/16.

Parameters:

	pPreviousStage	Pointer to previous stage
	TakeOwnership	Filter takes ownership of previous stage and will delete when needed
	NumColumns	Number of resulting columns
	NumRows	Number of resulting rows
	PrevStageUsage	How to use previous stage to help in zooming if supported
	ResampleMethod	Resampling method if zooming not done entirely by previous stage

virtual SPATMOD::IMAGE::FILTER_ZOOM::~FILTER_ZOOM

(

)

[virtual]

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

• spatmod/imagefilterzoom.h