In praise of AA filters

Started Oct 23, 2013 | Discussions thread
rovingtim
Veteran MemberPosts: 8,130
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Re: Pro AA filter users forget Sigma's Foveon sensor
In reply to Lee Jay, Oct 25, 2013

Lee Jay wrote:

rovingtim wrote:

Whether it 'looks' right or not does not change the fact that this 'detail' is software invented and not optically captured.

Aliasing isn't software-invented, it's spacial frequencies mirrored about the Nyquist frequency.

The software 'fix' to this is to invent 'detail'. How else do we get the appearance of complete detail beyond Nyquist?

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