diff --git a/modules/imgproc/include/opencv2/imgproc.hpp b/modules/imgproc/include/opencv2/imgproc.hpp
index b3551f3496..4bc9d6a11c 100644
--- a/modules/imgproc/include/opencv2/imgproc.hpp
+++ b/modules/imgproc/include/opencv2/imgproc.hpp
@@ -3070,9 +3070,10 @@ Also, the special values #THRESH_OTSU or #THRESH_TRIANGLE may be combined with o
 above values. In these cases, the function determines the optimal threshold value using the Otsu's
 or Triangle algorithm and uses it instead of the specified thresh.
 
-@note Currently, the Otsu's and Triangle methods are implemented only for 8-bit single-channel images.
+@note Currently, the Otsu's method is implemented only for CV_8UC1 and CV_16UC1 images,
+and the Triangle's method is implemented only for CV_8UC1 images.
 
-@param src input array (multiple-channel, 8-bit or 32-bit floating point).
+@param src input array (multiple-channel, CV_8U, CV_16S, CV_16U, CV_32F or CV_64F).
 @param dst output array of the same size  and type and the same number of channels as src.
 @param thresh threshold value.
 @param maxval maximum value to use with the #THRESH_BINARY and #THRESH_BINARY_INV thresholding