►
Keras 3 API documentation /
Layers API /
Preprocessing layers /
Image preprocessing layers /
AutoContrast layer
AutoContrast layer
AutoContrast class
keras.layers.AutoContrast(value_range=(0, 255), **kwargs)
Performs the auto-contrast operation on an image.
Auto contrast stretches the values of an image across the entire available
value_range. This makes differences between pixels more obvious. An
example of this is if an image only has values [0, 1] out of the range
[0, 255], auto contrast will change the 1 values to be 255.
This layer is active at both training and inference time.
Arguments
- value_range: Range of values the incoming images will have.
Represented as a two number tuple written
(low, high). This is typically either(0, 1)or(0, 255)depending on how your preprocessing pipeline is set up. Defaults to(0, 255).