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Old 16-08-2008, 10:20 AM
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strongmanmike (Michael)
Woohoo it's clear

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 14,809
Uneven noise reduction

Recently I made some comments regarding how layer masking and selective noise reduction can impart a somewhat obvious processed look to an image, well todays APOD is a classic example of this IMO. While this is a wonderful galaxy and indeed overall a great image showing lots of interesting bits, the uneven application of the noise reduction and sharpening is obvious to me..?

http://antwrp.gsfc.nasa.gov/apod/ima...2008wendel.jpg

See how the centre is obviously sharper than the perifery, and the outer arms and sky have been overly smoothed in comparison? It looks like we are looking through a slightly steamed up window that has been cleared only in the middle.

Again I am not bagging the image as a whole (it is a great image allround) just some harmless observations regarding one aspect.

Mike
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