A class to handle tone mapping based on gamma. More...

Inheritance diagram for libcamera::ipa::ipu3::algorithms::ToneMapping:

Collaboration diagram for libcamera::ipa::ipu3::algorithms::ToneMapping:

Public Member Functions
int	configure (IPAContext &context, const IPAConfigInfo &configInfo) override
	Configure the tone mapping given a configInfo. More...

void	prepare (IPAContext &context, ipu3_uapi_params *params) override
	Fill in the parameter structure, and enable gamma control. More...

void	process (IPAContext &context, const ipu3_uapi_stats_3a *stats) override
	Calculate the tone mapping look up table. More...

virtual int	configure (IPAContext &context, const IPAConfigInfo &configInfo)
	Configure the Algorithm given an IPAConfigInfo. More...

virtual void	prepare (IPAContext &context, ipu3_uapi_params *params)
	Fill the params buffer with ISP processing parameters for a frame. More...

virtual void	process (IPAContext &context, const ipu3_uapi_stats_3a *stats)
	Process ISP statistics, and run algorithm operations. More...

Detailed Description

A class to handle tone mapping based on gamma.

This algorithm improves the image dynamic using a look-up table which is generated based on a gamma parameter.

Member Function Documentation

int libcamera::ipa::ipu3::algorithms::ToneMapping::configure	(	IPAContext &	context,
		const IPAConfigInfo &	configInfo
	)

overridevirtual

Configure the tone mapping given a configInfo.

Parameters

[in]	context	The shared IPA context
[in]	configInfo	The IPA configuration data

void libcamera::ipa::ipu3::algorithms::ToneMapping::prepare	(	IPAContext &	context,
		ipu3_uapi_params *	params
	)

overridevirtual

Fill in the parameter structure, and enable gamma control.

Parameters

context	The shared IPA context
params	The IPU3 parameters

Populate the IPU3 parameter structure with our tone mapping look up table and enable the gamma control module in the processing blocks.

void libcamera::ipa::ipu3::algorithms::ToneMapping::process	(	IPAContext &	context,
		const ipu3_uapi_stats_3a *	stats
	)

overridevirtual

Calculate the tone mapping look up table.

Parameters

context	The shared IPA context
stats	The IPU3 statistics and ISP results

The tone mapping look up table is generated as an inverse power curve from our gamma setting.

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