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► Keras 3 API documentation / Layers API / Preprocessing layers / Image preprocessing layers / AutoContrast layer

AutoContrast layer

[source]

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.

Note: This layer is safe to use inside a tf.data or grain pipeline (independently of which backend you're using).

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).
AutoContrast layer
AutoContrast class