Tones Range node
~~~~~~~~~~~~~~~~

The **Tones Range** node selects a range of the input around a specified value.

.. image:: images/node_filter_tones_range.png
	:align: center

Inputs
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The **Tones Range** node requires a grayscale input texture.

Outputs
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The **Tones Range** node provides a single grayscale texture.

Parameters
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The **Tones Range** node accepts 4 parameters:

* the *Value* around which the tones are selected

* the *Width* (in tones space) of the gradient around the value

* the *Contrast* of the gradient

* the *Invert* option that will invert the result if checked
