firevision::Scaler Class Reference

Image scaler interface. More...

#include <fvutils/scalers/scaler.h>

Inheritance diagram for firevision::Scaler:

[legend]

List of all members.

Public Member Functions
virtual	~Scaler ()
	Virtual empty destructor.
virtual void	set_scale_factor (float factor)=0
	Set scale factor.
virtual void	set_original_dimensions (unsigned int width, unsigned int height)=0
	Set original image dimensions.
virtual void	set_scaled_dimensions (unsigned int width, unsigned int height)=0
	Set dimenins of scaled image buffer.
virtual void	set_original_buffer (unsigned char *buffer)=0
	Set original image buffer.
virtual void	set_scaled_buffer (unsigned char *buffer)=0
	Set scaled image buffer.
virtual void	scale ()=0
	Scale image.
virtual unsigned int	needed_scaled_width ()=0
	Minimum needed width of scaled image depending on factor and original image width.
virtual unsigned int	needed_scaled_height ()=0
	Minimum needed height of scaled image depending on factor and original image height.
virtual float	get_scale_factor ()=0
	Returns the scale factor.

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Detailed Description

Image scaler interface.

Image scalers allow for scaling images by a given factor.

Author:

Tim Niemueller

Definition at line 32 of file scaler.h.

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Constructor & Destructor Documentation

firevision::Scaler::~Scaler

(

)

[virtual]

Virtual empty destructor.

Definition at line 75 of file scaler.cpp.

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Member Function Documentation

float firevision::Scaler::get_scale_factor

(

)

[pure virtual]

Returns the scale factor.

Returns:

the scale factor

Implemented in firevision::LossyScaler.

unsigned int firevision::Scaler::needed_scaled_height

(

)

[pure virtual]

Minimum needed height of scaled image depending on factor and original image height.

Returns:

minimum needed height

Implemented in firevision::LossyScaler.

Referenced by MiniImageProducer::MiniImageProducer().

unsigned int firevision::Scaler::needed_scaled_width

(

)

[pure virtual]

Minimum needed width of scaled image depending on factor and original image width.

Returns:

minimum needed width

Implemented in firevision::LossyScaler.

Referenced by MiniImageProducer::MiniImageProducer().

void firevision::Scaler::scale

(

)

[pure virtual]

Scale image.

Implemented in firevision::LossyScaler.

Referenced by MiniImageProducer::produce().

void firevision::Scaler::set_original_buffer

(

unsigned char *

buffer

)

[pure virtual]

Set original image buffer.

Parameters:

buffer

YUV 422 planar buffer

Implemented in firevision::LossyScaler.

Referenced by MiniImageProducer::produce().

void firevision::Scaler::set_original_dimensions	(	unsigned int	width,
		unsigned int	height
	)			[pure virtual]

Set original image dimensions.

Parameters:

	width	image width
	height	height

Implemented in firevision::LossyScaler.

Referenced by MiniImageProducer::MiniImageProducer(), and MiniImageProducer::produce().

void firevision::Scaler::set_scale_factor

(

float

factor

)

[pure virtual]

Set scale factor.

Parameters:

factor

scale factor

Implemented in firevision::LossyScaler.

Referenced by MiniImageProducer::MiniImageProducer(), and MiniImageProducer::produce().

void firevision::Scaler::set_scaled_buffer

(

unsigned char *

buffer

)

[pure virtual]

Set scaled image buffer.

Parameters:

buffer

YUV 422 planar buffer

Implemented in firevision::LossyScaler.

Referenced by MiniImageProducer::produce().

void firevision::Scaler::set_scaled_dimensions	(	unsigned int	width,
		unsigned int	height
	)			[pure virtual]

Set dimenins of scaled image buffer.

Parameters:

	width	image width
	height	height

Implemented in firevision::LossyScaler.

Referenced by MiniImageProducer::produce().

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

• src/firevision/fvutils/scalers/scaler.h
• src/firevision/fvutils/scalers/scaler.cpp