opentl::cvprocess::ColorHistSum Class Reference

This is a shader example for computing a histogram out of partial histogram (by simply summing them, bin per bin) NOTE: Derived class from GpuStdShaders. More...

Inherits opentl::cvprocess::GpuStdShaders.

List of all members.

Classes
struct	Param
Public Member Functions
	ColorHistSum (Param *param=NULL)
	Constructor.
void	copyHistoFromGPU (opentl::core::cvdata::ColourHist2d &MDestination)
	Copy back the histogram from GPU.
virtual void	execute ()
	Shader execution (overrides the base class method).
opentl::cvprocess::GlFbo *	getCurrentFbo ()
	Get the current FBO (if we want to upload textures from outside, we need to bind to the current FBO!) TODO: This is hacking the class... make it with another function, for uploading/downloading the textures from outside!
Param &	params ()
	Get/Set parameters for this class.
virtual void	prepareDisplayList ()
	Fixed display list for computing the histogram in parallel, by dividing the image into blocks of fixed size.
void	setNBlocks (int nBlocks)
	Set actual number of sub-histograms to be summed up.
virtual	~ColorHistSum ()
	Destructor.

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Detailed Description

This is a shader example for computing a histogram out of partial histogram (by simply summing them, bin per bin) NOTE: Derived class from GpuStdShaders.

Author:

Giorgio Panin <panin@in.tum.de>

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Constructor & Destructor Documentation

opentl::cvprocess::ColorHistSum::ColorHistSum

(

Param *

param = NULL

)

Constructor.

Parameters:

param

Structure of parameters for this class

virtual opentl::cvprocess::ColorHistSum::~ColorHistSum

(

)

[virtual]

Destructor.

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Member Function Documentation

void opentl::cvprocess::ColorHistSum::copyHistoFromGPU

(

opentl::core::cvdata::ColourHist2d &

MDestination

)

Copy back the histogram from GPU.

Parameters:

MDestination

Destination histogram (the source is the GPU texture mColourHistoTexture)

virtual void opentl::cvprocess::ColorHistSum::execute

(

)

[virtual]

Shader execution (overrides the base class method).

Reimplemented from opentl::cvprocess::GpuStdShaders.

opentl::cvprocess::GlFbo* opentl::cvprocess::ColorHistSum::getCurrentFbo

(

)

[inline]

Get the current FBO (if we want to upload textures from outside, we need to bind to the current FBO!) TODO: This is hacking the class... make it with another function, for uploading/downloading the textures from outside!

Param& opentl::cvprocess::ColorHistSum::params

(

)

Get/Set parameters for this class.

Returns:

Reference to parameter struct

virtual void opentl::cvprocess::ColorHistSum::prepareDisplayList

(

)

[virtual]

Fixed display list for computing the histogram in parallel, by dividing the image into blocks of fixed size.

Reimplemented from opentl::cvprocess::GpuStdShaders.

void opentl::cvprocess::ColorHistSum::setNBlocks

(

int

nBlocks

)

[inline]

Set actual number of sub-histograms to be summed up.