Measuring focus / sharpness

Posted by David Faulstich Diniz Reis on Jul 01, 2010; 6:41pm
URL: http://imagej.273.s1.nabble.com/Measuring-focus-sharpness-tp3687753.html

Hi!

 

I want to know IF anyone already made na algorithm to measure the image´s
sharpness.

 

I am trying to automatically apply an sharpness algorithm if needed.

 

Reading I discover that we need to discover the spatial frequency. Mesure
high spatial frequency / low frequency, and based on this result, apply the
sharpness algorithm.

 

Thank you in advance.

 

David

 

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