11-26-2010, 08:34 PM
[quote name='Klaus' timestamp='1290776634' post='4475']
http://www.imatest.com/docs/sharpness.html#calc
[/quote]
Thanks. It appears they are aiming at sub-pixel precision by exploiting blur distribution.
Do you know to what extent their approach depends on the assumption of adequate anti-aliasing, i.e., the presence of an AA filter?
Is it possible that feeding the Imatest software with images from a sensor with no AA filter might produce questionable results and/or what precautions have to be taken to make sure that this doesn't happen?
http://www.imatest.com/docs/sharpness.html#calc
[/quote]
Thanks. It appears they are aiming at sub-pixel precision by exploiting blur distribution.
Do you know to what extent their approach depends on the assumption of adequate anti-aliasing, i.e., the presence of an AA filter?
Is it possible that feeding the Imatest software with images from a sensor with no AA filter might produce questionable results and/or what precautions have to be taken to make sure that this doesn't happen?