D300 noise and Capture NX

Started Nov 29, 2007 | Discussions thread
Iliah Borg Forum Pro • Posts: 25,745
Re: Here's a note to Phil!

Arash Hazeghi wrote:

Different sensors have different characteristics,

Agree 100%

thus each have an optimized demosaic

Demosaicing for Bayer sensor does not depend on sensor properties, pre-demosaicing routines depend mostly on the lens, AA filter, sensor pitch, actual geometry of the sensitive element, and well capacity. Demosaicing can be optimized for those parameters based on spec sheets and little experimentation. Nikon demosaicing is far from being state of the art.

and NR algorithm which only the manifacturer of
the sensor knows.

Same, digital part of NR is nothing really tricky.

ACR and others use a generic demosaic algorithm and
a generic NR/Anti Moire. Thus picrures from most cameras look the
same.

Picture look in ACR/LR is due to design decisions: methods of white balance, saturation control, colour conversion, tone curve, fast imprecise demosaicing and clay-producing (for the lack of better term) NR.

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