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wx.ImageHistogram
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Inheritance diagram for `wx.ImageHistogram`:

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.. inheritance-diagram:: wx.ImageHistogram

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Description
===========

Proxy of C++ ImageHistogram class.


Methods Summary
^^^^^^^^^^^^^^^

* `__init__ <#__init__>`_ 
* `FindFirstUnusedColour <#FindFirstUnusedColour>`_ 
* `GetCount <#GetCount>`_ 
* `GetCountColour <#GetCountColour>`_ 
* `GetCountRGB <#GetCountRGB>`_ 
* `MakeKey <#MakeKey>`_ 

Class API
=========

Methods
^^^^^^^


.. method:: __init__()

   `No docstrings available for this method.` 

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.. method:: FindFirstUnusedColour(startR=1, startG=0, startB=0)

   Find first colour that is not used in the image and has higher RGB
   values than `startR`, `startG`, `startB`. Returns a tuple consisting of a
   success flag and rgb values.

   **Parameters:**

   * `startR` (int)
   * `startG` (int)
   * `startB` (int)

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   **Returns:**

   `(success, r, g, b)` 

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.. method:: GetCount(key)

   Returns the pixel count for the given key. Use `MakeKey <#MakeKey>`_ to create a key value from a RGB triplet.

   **Parameters:**

   * `key` (int)

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   **Returns:**

   `int` 

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.. method:: GetCountColour(colour)

   Returns the pixel count for the given `wx.Colour <wx.Colour.html>`_ value.

   **Parameters:**

   * `colour` (`wx.Colour <wx.Colour.html>`_)

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   **Returns:**

   `int` 

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.. method:: GetCountRGB(r, g, b)

   Returns the pixel count for the given RGB values.

   **Parameters:**

   * `r` (byte)
   * `g` (byte)
   * `b` (byte)

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   **Returns:**

   `int` 

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.. method:: MakeKey(r, g, b)

   Get the key in the histogram for the given RGB values

   **Parameters:**

   * `r` (byte)
   * `g` (byte)
   * `b` (byte)

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   **Returns:**

   `int`