Table 3.

Accuracy evaluation of chessboard cell corner detection using the OpenCV library findChessboardCorners function.

Image Set	Mean	Maximum
In the air	1.7833	3.7317
Underwater (salinity $<1\%$)	2.8408	22.6256
Underwater (salinity $13\%$)	2.6668	6.7385
Underwater (salinity $27\%$)	3.3144	11.9810
Underwater (salinity $40\%$)	4.1901	9.7023