How do I compute for the area and diameter of each raindrop and make graph analysis

Good day I just want to know what is the matlab code if I am going to compute the area and diameter of each raindrop and plot it in a graph. Also what is the code for computing the total number of raindrops

here is the result

Answer 1

[yanqi liu]

yes，sir，may be use

ar = sum(cat(1, stats.Area));

to get the sum area

[Love Angelique Dumangcas]

I have tried coding this but it doesn't display answers,, I want to compute the area of each raindrop in the frame and plot it in a graph