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 circular or arbitrary ROI (Region of Interest)		  New Topic  Reply to Topic
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pirzadeh

Germany
10 Posts
Posted - 03/05/2004 :  04:29:45 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
I want to cut out a circular Region of Interest (ROI) out of an image.
Is that possible with Origin? I only found the rectangluar ROI tool.
Is their a way to make abitrary ROI with Origin?

yours

Pascal

Mike Buess

USA
3037 Posts
Posted - 03/05/2004 :  07:54:27 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi Pascal,

@ROI=1 turns the circle, polygon and region tools into ROI tools.

Mike Buess
Origin WebRing Member
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pirzadeh

Germany
10 Posts
Posted - 03/05/2004 :  10:21:29 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Wow that was fast :)
Thanks a lot

Pascal
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pirzadeh

Germany
10 Posts
Posted - 03/05/2004 :  10:31:31 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Another Question:

When I tried to integrate over the Region of Interest origin told me
"Less than two rows or columns in matrix." and I got only the integration over the old Matrix with all Data points.

What did I do wrong?

Yours

Pascal
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Mike Buess

USA
3037 Posts
Posted - 03/05/2004 :  11:00:24 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi Pascal,

I'm not sure what's wrong there but if you have Origin 7.0 SR3 or higher you might try TweakROI from OriginLab's File Exchange.

Mike Buess
Origin WebRing Member
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Mike Buess

USA
3037 Posts
Posted - 03/10/2004 :  5:19:40 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Pascal,

I saw your comment about the TweakROI module on the File Exchange...
quote:
Great to analyse images!!! Only the image need first to be converted in a Worksheet and back into a new Matrix again.
Converting a matrix to a worksheet and back to matrix merely changes the internal data type from int (probably) to double. You can accomplish the same thing with Matrix->Set Properties but I revised TweakROI to do it automatically. The new version might save you a few steps.

Mike Buess
Origin WebRing Member
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