The cv::threshold() doc mentions

Currently, the Otsu's and Triangle methods are implemented only for 8-bit single-channel images.

However, the source code implements getThreshVal_Otsu_16u()

Should the doc be updated, or is it aside on purpose because there is no ipp_getThreshVal_Otsu_16u() to be on par with ipp_getThreshVal_Otsu_8u() ?