×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Extraction of the number of circles by diameter

Extraction of the number of circles by diameter

Extraction of the number of circles by diameter

(OP)
I think the job I am trying to make is relevant to image processing.

As you can see in the picture I attached,

There are many circles.

I want to get the size distribution of the circle by matlab. (x-axis: radius of the circle, y-axis: number of the circle)

Does anyone have any good idea to approach this task?




RE: Extraction of the number of circles by diameter

(OP)
No this is not for the school work but research problem.
I need to get the distribution for the structure modeling.

RE: Extraction of the number of circles by diameter

(OP)
Thanks for your comment.
yes. I tried to find a tool at Matlab exchange and PAS macro but I could only find a tool just measuring diameter manually.
If I do manually, I could count big circle but had problem for small one because of many numbers.
That's why I am trying to find automatically analyzing tool.

RE: Extraction of the number of circles by diameter

Attached is the processed result from ImageJ, which counted 275 white blobs

http://files.engineering.com/getfile.aspx?folder=4...
http://files.engineering.com/getfile.aspx?folder=5...

TTFN
FAQ731-376: Eng-Tips.com Forum Policies

Need help writing a question or understanding a reply? forum1529: Translation Assistance for Engineers

Of course I can. I can do anything. I can do absolutely anything. I'm an expert!

RE: Extraction of the number of circles by diameter

(OP)
Thank you so much.
It wasn't easy for me (have done usually fabrication only for researches) to do such a analyzation using this computer software things.
I studied ImageJ and I was quiet surprised of its ability.
So happy that now I can go home.

Thank you again.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login



News


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close