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Clarified floodfill documentation

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Clarified what value floodfill sets pixels in the mask to when FOODFILL_MASK_ONLY is set.
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tim36272 2013-04-17 00:34:20 -07:00
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modules/imgproc/doc/miscellaneous_transformations.rst
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@ -507,7 +507,7 @@ Fills a connected component with the given color.
* **FLOODFILL_FIXED_RANGE** If set, the difference between the current pixel and seed pixel is considered. Otherwise, the difference between neighbor pixels is considered (that is, the range is floating).
* **FLOODFILL_MASK_ONLY** If set, the function does not change the image ( ``newVal`` is ignored), but fills the mask. The flag can be used for the second variant only.
* **FLOODFILL_MASK_ONLY** If set, the function does not change the image ( ``newVal`` is ignored), but fills the mask with the value in bits 8-16 of ``flags`` (that is, the fill value is set to newValue by adding (newValue << 8) to the ``flags``). The flag can be used for the second variant only.
The functions ``floodFill`` fill a connected component starting from the seed point with the specified color. The connectivity is determined by the color/brightness closeness of the neighbor pixels. The pixel at
:math:`(x,y)` is considered to belong to the repainted domain if: