pyflink.multimodal.operators.image_adjust_color#

image_adjust_color(*columns, brightness=1.0, contrast=1.0, saturation=1.0, concurrency=None)[source]#

Adjust image brightness, contrast, and saturation.

Each factor is a multiplier: 1.0 = no change, < 1.0 = decrease, > 1.0 = increase.

Parameters

*columns – Optional image columns. When provided, the UDF is applied directly instead of returning a factory.
brightness – Brightness multiplier (>= 0). Default 1.0.
contrast – Contrast multiplier (>= 0). Default 1.0.
saturation – Saturation (color intensity) multiplier (>= 0). Default 1.0.
concurrency – UDF concurrency. None uses the framework default.

Returns

A UDF producing decoded image values.

Example::

>>> # As a reusable variable
>>> adjust = image_adjust_color(brightness=1.5)
>>> df = df.with_columns("bright", adjust(col("img")))
>>>
>>> # Inline
>>> df = df.with_columns("bright", image_adjust_color(col("img"), brightness=1.5))