Extraction of the number of circles by diameter

• Nov 19, 2014

• #2

IRstuff

Aerospace

Jun 3, 2002

44,763

Is this for school? Student posting is not allowed

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• Nov 19, 2014

• Thread starter
• #3

Xylitol

Materials

Nov 19, 2014

4

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

 

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• Nov 19, 2014

• #4

IRstuff

Aerospace

Jun 3, 2002

44,763

Have you looked at the Matlab file exchange or the particle analyzer macro in ImageJ

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• Nov 19, 2014

• #5

GregLocock

Automotive

Apr 10, 2001

23,781

If they were circles it'd be easy. Those are blobs, or to be generous, ellipses. Are big blobs more important in your analysis than small ones?



Cheers

Greg Locock


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• Nov 19, 2014

• Thread starter
• #6

Xylitol

Materials

Nov 19, 2014

4

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.

 

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• Nov 19, 2014

• #7

IRstuff

Aerospace

Jun 3, 2002

44,763

Again, have you looked at the particle analyzer macro in ImageJ

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• Nov 19, 2014

• #8

GregLocock

Automotive

Apr 10, 2001

23,781

http://au.mathworks.com/help/vision/examples/object-counting.html

http://au.mathworks.com/help/vision/examples/cell-counting.html

http://www.instructables.com/id/Image-Processing-and-Counting-using-MATLAB/

etc

You will need to tidy up your image first.

Cheers

Greg Locock


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• Nov 19, 2014

• #9

IRstuff

Aerospace

Jun 3, 2002

44,763

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

http://files.engineering.com/getfile.aspx?folder=43608698-3c95-4c05-97ef-17f4ad678141&file=blobs.gif

http://files.engineering.com/getfil...a-f2d5-4a6b-afc3-ce470337d180&file=blobs.xlsx

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• Nov 19, 2014

• Thread starter
• #10

Xylitol

Materials

Nov 19, 2014

4

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.

 

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