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Added links to more information about the enhancement factor

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Andrew Murray 2023-04-04 13:23:19 +10:00
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docs/reference/ImageEnhance.rst
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@ -29,6 +29,8 @@ Classes
All enhancement classes implement a common interface, containing a single
method:
.. _enhancement-factor:
.. py:class:: _Enhance
.. py:method:: enhance(factor)
@ -45,31 +47,33 @@ method:
Adjust image color balance.
This class can be used to adjust the colour balance of an image, in
a manner similar to the controls on a colour TV set. An enhancement
factor of 0.0 gives a black and white image. A factor of 1.0 gives
the original image.
This class can be used to adjust the colour balance of an image, in a
manner similar to the controls on a colour TV set. An
:ref:`enhancement factor <enhancement-factor>` of 0.0 gives a black and
white image. A factor of 1.0 gives the original image.
.. py:class:: Contrast(image)
Adjust image contrast.
This class can be used to control the contrast of an image, similar
to the contrast control on a TV set. An enhancement factor of 0.0
gives a solid grey image. A factor of 1.0 gives the original image.
This class can be used to control the contrast of an image, similar to the
contrast control on a TV set. An
:ref:`enhancement factor <enhancement-factor>` of 0.0 gives a solid grey
image. A factor of 1.0 gives the original image.
.. py:class:: Brightness(image)
Adjust image brightness.
This class can be used to control the brightness of an image. An
enhancement factor of 0.0 gives a black image. A factor of 1.0 gives the
original image.
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.
A factor of 1.0 gives the original image.
.. py:class:: Sharpness(image)
Adjust image sharpness.
This class can be used to adjust the sharpness of an image. An
enhancement factor of 0.0 gives a blurred image, a factor of 1.0 gives the
original image, and a factor of 2.0 gives a sharpened image.
:ref:`enhancement factor <enhancement-factor>` of 0.0 gives a blurred
image, a factor of 1.0 gives the original image, and a factor of 2.0 gives
a sharpened image.