Pixel Madness with the new Nokia Smartphone

[Peter S]

Waiting to start my next job in August and until then am using a cheap Nokia 520 prepaid Windows 8 phone and I am really enjoying the operating system. Everything syncs across all my devices effortlessly and just gets the job done. I am very interested in the 1020. Nokia clearly is focussing on camera technology. I was impressed by what I saw from their 808 Pureview phone and this seems to be the latest branch on the tree. It seems to match a lot of the compact camera's out there (not talking rx100 and grd5) so this might become the camera I will always have with me.

 

[Elektrojänis]

Resizing is done at post production while "combination" here means downsampling at the time of output generation. Two quite different things. This is why by no means it is a 41 Mpixel camera.

Does it really matter if it's done in phone's software or in a separate computer? I don't think so.

Resizing does not reduce noise!

Have you tried to resize (with interpolation ofcource) a noisy picture? To me it very much looks like it does reduce the amoint of noise.

This also goes well with sampling theorem... The noise from the sensor tends to be of relatively high frequency. For good downsampling (resizing, same thing) you need to get rid of those high frequency details somehow (be it noise or real image detail). It doesn't really matter if it's done by averaging pixels or more complex filtering algorithms... The noise will get lower. It doesn't dissapear, but it will be less visible.

There is no magic. Combining information from several pixels = downsampling = resizing.