In praise of AA filters

Started 9 months ago | Discussions thread
Lee Jay
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Re: Detail above Nyquist in MTF
In reply to rovingtim, 9 months ago

rovingtim wrote:

Lee Jay wrote:

Lee Jay wrote:

Using the slanted line method of oversampling. That's s special case and no real detail can be found that way.

That has been my point all along. Software is 'creating' the appearance of detail over Nyquist in digital files.

Wrong.

So, what are those black lines in the image that are beyond Nyquist then?

Aliasing.  Their spacial frequency is by-definition below Nyquist.

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