Digital Noise - DPChallenge Forums

03/05/2005 12:16:34 PM · #1

What do you do in the situation of digital noise? Do you run it through "Neat Image" (which I do not have), or do you swutch to "Lab" mode in Photoshop CS? I was wondering this because I recieved a comment that said my photo was a bit noisey, and that was the reccomendation. Like I said I do not have neat image, would that be somthing I should consider buying?

Thanks,
Travis

Nikon AF-S DX NIKKOR 18-200mm f/3.5-5.6G ED VR II

03/05/2005 12:23:48 PM · #2

At what ISO was the image shot?
Was the image significantly underexposed and brightened in post?
Does the image contain a lot of shadow area where noise is more visible?
Was your submission cropped significantly?

Nikon D200

03/05/2005 12:26:01 PM · #3

You can get a free version of NeatImage - it works great!

03/05/2005 12:35:35 PM · #4

Originally posted by A1275:

You can get a free version of NeatImage - it works great!

The "free" version is intended as a demo, and will only save at very low quality settings. If you use the program, you should purchase.

Azrifel

Fujifilm X100VI

03/05/2005 12:45:13 PM · #5

In the case of your pic I see what Imagineer means.

The lab a&b channel blurring is something called chroma noise reduction. There are plenty of sites that describe that technique and offer free actions to use in Photoshop. It takes care of the red and green color shifts, in this case it would lead to a more even grey background.
It doesn't help with the pattern noise (you'll probably won't see it so much after the chroma noise reduction) and can be avoided with using a larger treshold while sharpening or using neatimage to blur the noise somewhat. For this case you could also do a gaussian blur, take one editing step back in the history and fill the noisy areas in with the history brush.

Message edited by author 2005-03-05 12:45:31.

03/05/2005 12:45:57 PM · #6

This is the image, no real post eiting, the original shot turned out just like this.

03/05/2005 12:47:10 PM · #7

Originally posted by Travis99:

This is the image, no real post eiting, the original shot turned out just like this. Shot at 200 iso

03/05/2005 01:11:21 PM · #8

Heh, honestly I do not see the noise as detracting from this image at all. It's only noticeable at all because of the extremely uniform gray background. Your commentors have pointed out some things that have far more potential to improve the image than applying noise reduction.

03/05/2005 01:30:10 PM · #9

I did a little touching up in PS what do you think now?