Forgotten in its old age

by Aditya

submit your photo

Hall of Fame
View past winners from this year

Please participate in Meta
and help us grow.

Take the 2-minute tour ×
Photography Stack Exchange is a question and answer site for professional, enthusiast and amateur photographers. It's 100% free, no registration required.

I am trying to perform some post-processing of Camera Raw images captrued using my Canon EOS 450-D. I am using PS CS5 and GIMP particulary to remove noise which is present in images.

My questions is:

In a typical image post processing, I think that most of the denoising happens almost always in the last step of processing in YCbCr data space. I am looking at some method/tool to perform denoising in Raw bayer data space itself on the sensor bayer data. Can you suggest any such tools, or algorithms/papers which talk about this? (I intend to implement my own denoising of bayer data eventually if I find some algorithm for it.)

share|improve this question
I've taken the liberty of removing the first part of your question, as it is exactly covered under What types of noise can be present in digital photographs? –  mattdm Jul 6 '11 at 14:41
@mattdm - ok. thanks. –  goldenmean Jul 6 '11 at 14:58

1 Answer 1

This is well beyond my understanding of the technology but I have read an article on this here.

It was an interesting read on the subject.

Also I notice you are using GIMP and CS5 for noise reduction, I found both to give me sub par results. I ended up settling on Nik Dfine for that process when I really need it and using Lightrooms built in noise filter as part of my process when I'm feeling lazy.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.