Measuring the contact angle of droplet.

26 views (last 30 days)
Molla
Molla on 5 Oct 2013
Commented: Image Analyst on 3 Mar 2021
I'm a beginner in image processing at Matlab.I would like to measure the static contact angle of a water droplet on surface. The purpose of this measurement is to determine whether a surface is hydrophobic or not. I've my input image. How can I start? Need some suggestions.
  2 Comments
Timothe Desbordes
Timothe Desbordes on 22 Apr 2019
Do you have find a way to make it I'm in the same situation ?
darova
darova on 22 Apr 2019
What if draw a line manually?
clc, clear
I = imread('cameraman.tif');
imshow(I)
h = msgbox('Draw Line');
waitfor(h)
hline = imline;
p = hline.getPosition;
x = p(:,1);
y = p(:,2);
a = atand(diff(y)/diff(x));
h = msgbox( sprintf('Angle: %2.2f degrees',a) );
waitfor(h)

Sign in to comment.

Answers (1)

Image Analyst
Image Analyst on 5 Oct 2013
The slope changes continuously as the surface of the droplet approaches the flat surface. Is there some industry standard method for getting the contact angle, assuming you can get a good cross section of the droplet?
  5 Comments

Sign in to comment.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!