gain_feature.py

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from __future__ import annotations
 
from ids_peak_common.datatypes.interval import Interval
from ids_peak_icv.pipeline._internal import GainModule
from ids_peak_icv.pipeline.features.ifeature import IFeature
 
 
class GainFeature(IFeature):
    """!
    @brief
    Gain is an image pipeline feature that applies gain correction to an image.
 
    @supportedPixelformats{Gain}
 
    Gain is used to adjust pixel intensities either uniformly across all color channels using the master gain,
    or individually per channel using the red, green, and blue gains.
    With master gain, image brightness can be increased.
    With color gains, the white balance can be adjusted.
    For color images, gain is applied as follows::
 
        red_value_out   = red_value_in   * red_gain   * master_gain
        green_value_out = green_value_in * green_gain * master_gain
        blue_value_out  = blue_value_in  * blue_gain  * master_gain
 
    where red_value_in, green_value_in, and blue_value_in are the input red, green, and blue channel values, respectively,
    and red_value_out, green_value_out, and blue_value_out are the corresponding output values.
    All RGB values are normalized to the range [0.0, 1.0].
    For mono images, the color gains are ignored and applied as follows::
 
        gray_value_out = gray_value_in * master_gain
 
    where gray_value_in is the input and gray_value_out the output value, normalized to the range [0.0, 1.0].
 
    Warning: Excessive gain values may cause clipping and loss of image detail in bright areas.
 
    Default configuration:
        - Master gain = 1.0
        - Red gain = 1.0
        - Green gain = 1.0
        - Blue gain = 1.0
 
    @since ids_peak_icv 1.0
    @ingroup ids_peak_icv_python_pipeline_features
    """
 
    def __init__(self, module: GainModule) -> None:
        """!
        @brief
        Creates a gain feature for an existing gain module.
        @param module: Reference to the underlying module
 
        @since ids_peak_icv 1.0
        """
        self._module = module
 
    @property
    def enabled(self) -> bool:
        """!
        @brief
        Indicates whether the feature is currently enabled.
        @return True if enabled; otherwise, False.
 
        @since ids_peak_icv 1.0
        """
        return self._module.enabled
 
    @enabled.setter
    def enabled(self, value: bool) -> None:
        """!
        @brief
        Enables or disables the feature.
        @param value: Set to True to enable the feature, or False to disable it.
 
        @since ids_peak_icv 1.0
        """
        self._module.enabled = value
 
    def reset_to_default(self) -> None:
        """!
        @brief
        Resets the all gain values to 1.0.
 
        @note The enabled state does not change when calling this function.
 
        @since ids_peak_icv 1.0
        """
        self._module.reset_to_default()
 
    @property
    def red(self) -> float:
        """!
        @brief
        Retrieves the current red gain.
        @return The current red gain.
 
        @since ids_peak_icv 1.0
        """
        return self._module.red
 
    @red.setter
    def red(self, value: float) -> None:
        """!
        @brief
        Sets the red gain value.
 
        Sets the color gain for the red channel. The valid range for the gain value can be
        obtained using the range property.
 
        @param value: The red gain value to set.
 
        @exception OutOfRangeException:  If the gain value is outside the valid range.
 
        @since ids_peak_icv 1.0
        """
        self._module.red = value
 
    @property
    def green(self) -> float:
        """!
        @brief
        Retrieves the current green gain.
        @return The current green gain.
 
        @since ids_peak_icv 1.0
        """
        return self._module.green
 
    @green.setter
    def green(self, value: float) -> None:
        """!
        @brief
        Sets the green gain value.
 
        Sets the color gain for the green channel. The valid range for the gain value can be
        obtained using the range property.
 
        @param value: The green gain value to set.
 
        @exception OutOfRangeException:  If the gain value is outside the valid range.
 
        @since ids_peak_icv 1.0
        """
        self._module.green = value
 
    @property
    def blue(self) -> float:
        """!
        @brief
        Retrieves the current blue gain.
        @return The current blue gain.
 
        @since ids_peak_icv 1.0
        """
        return self._module.blue
 
    @blue.setter
    def blue(self, value: float) -> None:
        """!
        @brief
        Sets the blue gain value.
 
        Sets the color gain for the blue channel. The valid range for the gain value can be
        obtained using the range property.
 
        @param value: The blue gain value to set.
 
        @exception OutOfRangeException:  If the gain value is outside the valid range.
 
        @since ids_peak_icv 1.0
        """
        self._module.blue = value
 
    @property
    def master(self) -> float:
        """!
        @brief
        Retrieves the current master gain.
        @return The current master gain.
 
        @since ids_peak_icv 1.0
        """
        return self._module.master
 
    @master.setter
    def master(self, value: float) -> None:
        """!
        @brief
        Sets the master gain value.
 
        Sets the color gain for the master channel. The valid range for the gain value can be
        obtained using the range property.
 
        @param value: The master gain value to set.
 
        @exception OutOfRangeException:  If the gain value is outside the valid range.
 
        @since ids_peak_icv 1.0
        """
        self._module.master = value
 
    @property
    def range(self) -> Interval:
        """!
        @brief
        Retrieves the valid range for the gamma correction exponent.
 
        The returned interval specifies the minimum and maximum values that can be passed to value property.
 
        @return An Interval representing the valid gamma range.
 
        @since ids_peak_icv 1.0
        """
        return self._module.range