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some level of digital noise can be inevitable when taking photographs in certain situations, causing photographers to want to remove it in post-processing.

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3
votes
3answers
843 views

Can I merge multiple photos to reduce noise?

This is not about HDR, exposure fusion, or any kind of bracketing (exposure, focus, ISO, what have you). There's an excellent iOS app called Cortex Camera that takes a couple of dozen photos in a ...
6
votes
1answer
787 views

Should I use a single denoising method with aggressive settings, or combine different methods?

I shot some pictures at night, at ISO 3200, and they are of course extremely noisy. But I want to keep them, and make them as decently looking as I can. I use Darktable as a workflow software, and ...
3
votes
1answer
823 views

What's the professional approach to removing noise from a cell phone pic?

I have a cell phone photo that's a bit grainy and slightly blurry. It's not the out-of-focus type of blur, but the blur brought on when edges run together due to lack of sharpness. I have Adobe ...
0
votes
0answers
56 views

Different sources of noise and ways to avoid/correct those [duplicate]

Possible Duplicate: What types of noise can be present in digital photographs? I've few questions related to noise found in digital images. There are topics on this forum on underexposure ...
2
votes
1answer
401 views

What algorithms or example tools are there for denoising of images in Raw format?

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: ...
20
votes
2answers
1k views

What is noise in a digital photograph?

What kinds of effects are present in digital images that are referred to as "noise"? What are the different sources of noise? What causes each type of noise? What are the characteristics of the ...
16
votes
3answers
1k views

Are there any good open source noise removal tools?

In particular that run natively on Linux.
11
votes
12answers
760 views

What noise removal tools work best, and why?

Can anyone recommend some good noise removal tools, free and commercial? Should support RAW and JPEG. Are certain tools better than others in particular situations? Do some integrate better with other ...