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Describe the effect of brightness and contrast factors above 1

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Andrew Murray 2023-04-04 14:59:26 +10:00
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docs/reference/ImageEnhance.rst
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@ -59,15 +59,17 @@ method:
This class can be used to control the contrast of an image, similar to the This class can be used to control the contrast of an image, similar to the
contrast control on a TV set. An contrast control on a TV set. An
:ref:`enhancement factor <enhancement-factor>` of 0.0 gives a solid grey :ref:`enhancement factor <enhancement-factor>` of 0.0 gives a solid grey
image. A factor of 1.0 gives the original image. image, a factor of 1.0 gives the original image, and greater values
increase the contrast of the image.
.. py:class:: Brightness(image) .. py:class:: Brightness(image)
Adjust image brightness. Adjust image brightness.
This class can be used to control the brightness of an image. An This class can be used to control the brightness of an image. An
:ref:`enhancement factor <enhancement-factor>` of 0.0 gives a black image. :ref:`enhancement factor <enhancement-factor>` of 0.0 gives a black image,
A factor of 1.0 gives the original image. a factor of 1.0 gives the original image, and greater values increase the
brightness of the image.
.. py:class:: Sharpness(image) .. py:class:: Sharpness(image)