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> So much of image (and audio!) processing is about getting away with noise the person can't detect :) Adobe's noise processing algorithms in their software ar
by elithrar 15y ago
> So much of image (and audio!) processing is about getting away with noise the person can't detect :)
Adobe's noise processing algorithms in their software are something else, especially in ACR6/Lightroom 3.
I moved 'down' from a 5D2 to a Panasonic GF1 as I don't shoot pro anymore, and ISO1600 on this thing with a slightly-off exposure can be pretty noisy. Lightroom cleans it up incredibly well without losing clarity/sharpness. Before that, I'd just do all I could to keep the ISO down so I didn't 'lose' images to noise.
- dpe82 15y agoIt's a very different kind of noise. Artifacts, is what he meant to write. Motion deconvolution done wrong tends to lead to things like ring artifacts and other things that look like the image has been really badly and inaccurately oversharpened. The basic theory for doing this type of deblurring isn't too bad, but making it easy and automatic becomes a really difficult computer vision-related problem. Adobe has been working on this (and a lot of other pretty cool stuff) for quite a while. It'll be interesting if they ever ship it.
- dhimes 15y agoI'm guessing that there is a whole lot of analysis left out by loading pre-configured coesfficient files to deconvolve these images. Getting that process to be relatively easy for the lay-person will be a challenge.