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    Maximize (normalize) image contrast. This function calculates a
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    so that the darkest pixel becomes black (0), and the lightest
    becomes white (255).

    :param image: The image to process.
    :param cutoff: The percent to cut off from the histogram on the low and
                   high ends. Either a tuple of (low, high), or a single
                   number for both.
    :param ignore: The background pixel value (use None for no background).
    :param mask: Histogram used in contrast operation is computed using pixels
                 within the mask. If no mask is given the entire image is used
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    :param preserve_tone: Preserve image tone in Photoshop-like style autocontrast.

                          .. versionadded:: 8.2.0

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    Colorize grayscale image.
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    Mapping positions for any of the colors can be specified
    (e.g. ``blackpoint``), where these parameters are the integer
    value corresponding to where the corresponding color should be mapped.
    These parameters must have logical order, such that
    ``blackpoint <= midpoint <= whitepoint`` (if ``mid`` is specified).

    :param image: The image to colorize.
    :param black: The color to use for black input pixels.
    :param white: The color to use for white input pixels.
    :param mid: The color to use for midtone input pixels.
    :param blackpoint: an int value [0, 255] for the black mapping.
    :param whitepoint: an int value [0, 255] for the white mapping.
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    Returns a resized and padded version of the image, expanded to fill the
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    :param method: Resampling method to use. Default is
                   :py:attr:`PIL.Image.BICUBIC`. See :ref:`concept-filters`.
    :param color: The background color of the padded image.
    :param centering: Control the position of the original image within the
                      padded version.

                          (0.5, 0.5) will keep the image centered
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    :param deformer: A deformer object.  Any object that implements a
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    Equalize the image histogram. This function applies a non-linear
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    :return: An image.
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    :param method: Resampling method to use. Default is
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    :param bleed: Remove a border around the outside of the image from all
                  four edges. The value is a decimal percentage (use 0.01 for
                  one percent). The default value is 0 (no border).
                  Cannot be greater than or equal to 0.5.
    :param centering: Control the cropping position.  Use (0.5, 0.5) for
                      center cropping (e.g. if cropping the width, take 50% off
                      of the left side, and therefore 50% off the right side).
                      (0.0, 0.0) will crop from the top left corner (i.e. if
                      cropping the width, take all of the crop off of the right
                      side, and if cropping the height, take all of it off the
                      bottom).  (1.0, 0.0) will crop from the bottom left
                      corner, etc. (i.e. if cropping the width, take all of the
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    :return: An image.
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