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move legacy C-API constants into separate files
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@@ -443,7 +443,7 @@ calculate the derivative. When \f$\texttt{ksize = 1}\f$, the \f$3 \times 1\f$ or
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kernel is used (that is, no Gaussian smoothing is done). `ksize = 1` can only be used for the first
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or the second x- or y- derivatives.
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There is also the special value `ksize = CV_SCHARR (-1)` that corresponds to the \f$3\times3\f$ Scharr
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There is also the special value `ksize = FILTER_SCHARR (-1)` that corresponds to the \f$3\times3\f$ Scharr
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filter that may give more accurate results than the \f$3\times3\f$ Sobel. The Scharr aperture is
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\f[\vecthreethree{-3}{0}{3}{-10}{0}{10}{-3}{0}{3}\f]
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