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imgproc: clarify usage of the mask in floodfill

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Vladislav Sovrasov 2017-10-26 13:51:57 +03:00 committed by sovrasov
parent 21c8e6d02d
commit a385fff3bf
1 changed files with 2 additions and 1 deletions
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modules/imgproc/include/opencv2/imgproc.hpp
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@ -3571,7 +3571,8 @@ taller than image. Since this is both an input and output parameter, you must ta
of initializing it. Flood-filling cannot go across non-zero pixels in the input mask. For example,
an edge detector output can be used as a mask to stop filling at edges. On output, pixels in the
mask corresponding to filled pixels in the image are set to 1 or to the a value specified in flags
as described below. It is therefore possible to use the same mask in multiple calls to the function
as described below. Additionally, the function fills the border of the mask with ones to simplify
internal processing. It is therefore possible to use the same mask in multiple calls to the function
to make sure the filled areas do not overlap.
@param seedPoint Starting point.
@param newVal New value of the repainted domain pixels.