Posted by
Joachim Wesner on
Jul 05, 2010; 10:04am
URL: http://imagej.273.s1.nabble.com/Signal-to-Noise-Ratio-SNR-tp3687681p3687686.html
Hi there,
Sorry but measuring the SNR of a single image without reference or any
a-priori-knowledge is simply mathematically IMPOSSIBLE!
How do you tell what is true data, what is noise? The human vision system
might imply that it is still possible, but this relies on
implicit assumptions about object structure and spatial frequency spectrum
of the "true" data.
Mit freundlichen Grüßen / Best regards
Joachim Wesner
Projektleiter Optik Technologiesysteme
Leica Microsystems CMS GmbH | GmbH mit Sitz in Wetzlar | Amtsgericht
Wetzlar HRB 2432
Geschäftsführer: Dr. Stefan Traeger | Dr. David Roy Martyr | Colin Davis
www.leica-microsystems.com
Anderson Vinícius
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Hi,
Is there any ImageJ plugin to calculate the Signal-to-Noise Ratio of a
single image without a reference image?
I've seen some plugins that calculate the SNR of images but in all of them
reference images are necessary.
Thank you.
[]s
--
Anderson Vinícius Alves Ferreira
Intern at Lafarge Centre de Recherche
95 rue du Montmurier - 38291 St Quentin-Fallavier - France
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