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Error in the documentation for cv::getRectSubPix. #9788 (#9871)

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* Error in the documentation for cv::getRectSubPix. #9788
The function name is corrected to GetRectSubPix since, it uses the notation
of src, dst and center. Also added the number of channel assertion criteria.

* Error in the documentation for cv::getRectSubPix. #9788
Replace dst with patch in the formula, reverted function name to
getRectSubPix, removed BorderTypes comment line due to no explicit call
to the function found.

* Error in the documentation for cv::getRectSubPix. #9788
Replace dst with patch in the formula, reverted function name to
getRectSubPix, removed BorderTypes comment line due to no explicit call
to the function found.
This commit is contained in:
Fakabbir Amin 2017-10-30 15:34:20 +05:30 committed by Vadim Pisarevsky
parent 476c513447
commit cd428fb798
1 changed files with 4 additions and 5 deletions
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9
modules/imgproc/include/opencv2/imgproc.hpp
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@ -2470,13 +2470,12 @@ CV_EXPORTS_W Mat getAffineTransform( InputArray src, InputArray dst );
The function getRectSubPix extracts pixels from src:
\f[dst(x, y) = src(x + \texttt{center.x} - ( \texttt{dst.cols} -1)*0.5, y + \texttt{center.y} - ( \texttt{dst.rows} -1)*0.5)\f]
\f[patch(x, y) = src(x + \texttt{center.x} - ( \texttt{dst.cols} -1)*0.5, y + \texttt{center.y} - ( \texttt{dst.rows} -1)*0.5)\f]
where the values of the pixels at non-integer coordinates are retrieved using bilinear
interpolation. Every channel of multi-channel images is processed independently. While the center of
the rectangle must be inside the image, parts of the rectangle may be outside. In this case, the
replication border mode (see cv::BorderTypes) is used to extrapolate the pixel values outside of
the image.
interpolation. Every channel of multi-channel images is processed independently. Also
the image should be a single channel or three channel image. While the center of the
rectangle must be inside the image, parts of the rectangle may be outside.
@param image Source image.
@param patchSize Size of the extracted patch.