I have to measure the diameter of a falling droplet as attached here. I can binarize and fill the holes to get the area in pixels. I have checked the area for threshold level 0.5 to 0.95 in imbinarize() function including the otsu's threshold value. Different threshold gives different area in pixels ranging from 1037 pixels to 1077 pixels as shown below. Now, how to choose the appropriate threshold level here for my diameter calculation?
Threshold area in pixels
0.95 1077
0.9 1073
0.85 1067
0.8 1064
0.75 1063
0.7 1061
0.65 1057
Otsu Threshold 1056
0.6 1050
0.55 1048
0.5 1037
Best Answer