log function
Log calculates the natural logarithm of every array element.
For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga937ecdce4679a77168730830a955bea7
Implementation
void log(InputArray src, OutputArray dst) {
_bindings.Mat_Log(src.ptr, dst.ptr);
}