ChromaticAdaptionFeature Class Reference

Inheritance diagram for ChromaticAdaptionFeature:

Public Member Functions
None	__init__ (self, ColorMatrixTransformationModule module)
	Creates a ChromaticAdaptionFeature for an existing color matrix transformation module.
bool	enabled (self)
	Indicates whether chromatic adaptation is enabled.
None	enabled (self, bool value)
	Enables or disables chromatic adaptation.
None	reset_to_default (self)
	Resets the chromatic adaption configuration to the default values.
ColorSpace	target_color_space (self)
	Retrieves the current target color space.
None	target_color_space (self, ColorSpace value)
	Sets the target color space.
ChromaticAdaptionAlgorithm	algorithm (self)
	Retrieves the current chromatic adaption algorithm.
None	algorithm (self, ChromaticAdaptionAlgorithm value)
	Sets the algorithm used for chromatic adaption.
int	color_temperature (self)
	Retrieves the current color temperature.
None	color_temperature (self, int value)
	Sets the color temperature of the light source.
bool	has_color_temperature (self)
	Checks whether a color temperature has been set.
Range	color_temperature_range (self)
	Returns the allowed temperature range for the current combination of color space and algorithm.

Protected Attributes
	_module = module

Detailed Description

Adjusts to changes in lighting conditions to maintain consistent color perception despite variations in light sources.

In industrial imaging, white balance can fail due to the lack of a neutral reference in the image, such as when the scene contains no gray or white areas, or when the colors are unevenly distributed (as in images dominated by a single color). In these cases, traditional white balance algorithms, like the gray world method, may fail to produce accurate color corrections.

Chromatic adaptation provides an alternative solution by adjusting the image’s colors based on the known or estimated correlated color temperature of the light source.

Note

If chromatic adaption is used in combination with white balance, the result is indefinite.

Default Configuration:

• Chromatic adaption algorithm = Bradford
• Color space = SRGB_D65
• Color temperature = undefined (chromatic adaption won't be applied)

Since

ids_peak_icv 1.3

Definition at line 12 of file chromatic_adaption_feature.py.

Constructor & Destructor Documentation

__init__()

None __init__	(		self,
		ColorMatrixTransformationModule	module )

Creates a ChromaticAdaptionFeature for an existing color matrix transformation module.

Parameters

module

Reference to the underlying ColorMatrixTransformationModule.

Since

ids_peak_icv 1.3

Definition at line 37 of file chromatic_adaption_feature.py.

Member Function Documentation

algorithm() [1/2]

ChromaticAdaptionAlgorithm algorithm

(

self

)

Retrieves the current chromatic adaption algorithm.

Returns

The currently set chromatic adaption algorithm.

Since

ids_peak_icv 1.3

Definition at line 111 of file chromatic_adaption_feature.py.

algorithm() [2/2]

None algorithm	(		self,
		ChromaticAdaptionAlgorithm	value )

Sets the algorithm used for chromatic adaption.

The algorithms use a CAT (chromatic adaptation transform) matrix.

Parameters

value

The chromatic adaption algorithm to set.

Since

ids_peak_icv 1.3

Definition at line 123 of file chromatic_adaption_feature.py.

color_temperature() [1/2]

int color_temperature

(

self

)

Retrieves the current color temperature.

Returns

The current color temperature in Kelvin.

Exceptions

NotPossibleException

If the color temperature has not been set (it has no default value).

Since

ids_peak_icv 1.3

Definition at line 137 of file chromatic_adaption_feature.py.

color_temperature() [2/2]

None color_temperature	(		self,
		int	value )

Sets the color temperature of the light source.

If no color temperature is explicitly set the chromatic adaption won't be applied.

Parameters

value

The color temperature in Kelvin to set. Must be within the allowed range.

Since

ids_peak_icv 1.3

Definition at line 151 of file chromatic_adaption_feature.py.

color_temperature_range()

Range color_temperature_range

(

self

)

Returns the allowed temperature range for the current combination of color space and algorithm.

Returns

A Range representing the allowed temperature range in Kelvin.

Since

ids_peak_icv 1.3

Definition at line 175 of file chromatic_adaption_feature.py.

enabled() [1/2]

bool enabled

(

self

)

Indicates whether chromatic adaptation is enabled.

Returns

True if enabled; otherwise, False.

Since

ids_peak_icv 1.3

Reimplemented from IFeature.

Definition at line 49 of file chromatic_adaption_feature.py.

enabled() [2/2]

None enabled	(		self,
		bool	value )

Enables or disables chromatic adaptation.

Parameters

value

Set to True to enable the feature, or False to disable it.

Since

ids_peak_icv 1.3

Reimplemented from IFeature.

Definition at line 61 of file chromatic_adaption_feature.py.

has_color_temperature()

bool has_color_temperature

(

self

)

Checks whether a color temperature has been set.

Returns

True if a color temperature is set, False otherwise.

Since

ids_peak_icv 1.3

Definition at line 163 of file chromatic_adaption_feature.py.

reset_to_default()

None reset_to_default

(

self

)

Resets the chromatic adaption configuration to the default values.

Note

The enabled state does not change when calling this function.

Since

ids_peak_icv 1.3

Reimplemented from IFeature.

Definition at line 72 of file chromatic_adaption_feature.py.

target_color_space() [1/2]

ColorSpace target_color_space

(

self

)

Retrieves the current target color space.

Returns

The currently set color space.

Since

ids_peak_icv 1.3

Definition at line 84 of file chromatic_adaption_feature.py.

target_color_space() [2/2]

None target_color_space	(		self,
		ColorSpace	value )

Sets the target color space.

A color space is a specific implementation of a color model, mapping colors to a defined range of values (e.g., standard primaries, white point, and gamma).

Parameters

value

The color space to set.

Since

ids_peak_icv 1.3

Definition at line 96 of file chromatic_adaption_feature.py.

Field Documentation

_module

_module = module

protected

Definition at line 46 of file chromatic_adaption_feature.py.