Least Squares Resizing

Discuss digital image processing techniques and algorithms. We encourage its application to ImageMagick but you can discuss any software solutions here.
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fmw42
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Location: Sunnyvale, California, USA

Least Squares Resizing

Post by fmw42 »

I found this ImageJ plugin and pdf article. Thought it might be interesting as comparison to IM methods. I just tested enlarging by 8x in ImageJ.

http://bigwww.epfl.ch/algorithms/ijplug ... index.html
http://bigwww.epfl.ch/publications/munoz0101.pdf


The chip image looks pretty good, but the eyechart does not. I don't have an expert eye for subtle details. So I leave to others for discussion.

chip:
Image
http://www.fmwconcepts.com/misc_tests/l ... hip_8x.png


eyechart:
Image
http://www.fmwconcepts.com/misc_tests/l ... art_8x.png


rose:
Image
http://www.fmwconcepts.com/misc_tests/l ... ose_8x.png

NicolasRobidoux
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Joined: 2010-08-28T11:16:00-07:00
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Location: Montreal, Canada

Re: Least Squares Resizing

Post by NicolasRobidoux »

Fred: Thank you for this.
(It turns out that I had scanned this article before.)

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