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Update cv::log documentation

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This commit is contained in:
Vladislav Sovrasov 2016-07-05 17:28:53 +03:00
parent 22682f933a
commit a2ec23c112
1 changed files with 4 additions and 7 deletions
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11
modules/core/include/opencv2/core.hpp
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@ -1433,14 +1433,11 @@ CV_EXPORTS_W void exp(InputArray src, OutputArray dst);
/** @brief Calculates the natural logarithm of every array element. /** @brief Calculates the natural logarithm of every array element.
The function log calculates the natural logarithm of the absolute value The function log calculates the natural logarithm of every element of the input array:
of every element of the input array: \f[\texttt{dst} (I) = \log (\texttt{src}(I)) \f]
\f[\texttt{dst} (I) = \fork{\log |\texttt{src}(I)|}{if \(\texttt{src}(I) \ne 0\) }{\texttt{C}}{otherwise}\f]
Output on zero, negative and special (NaN, Inf) values is undefined.
where C is a large negative number (about -700 in the current
implementation). The maximum relative error is about 7e-6 for
single-precision input and less than 1e-10 for double-precision input.
Special values (NaN, Inf) are not handled.
@param src input array. @param src input array.
@param dst output array of the same size and type as src . @param dst output array of the same size and type as src .
@sa exp, cartToPolar, polarToCart, phase, pow, sqrt, magnitude @sa exp, cartToPolar, polarToCart, phase, pow, sqrt, magnitude