A solution for ISO noise

  • Thread starter Thread starter morris
  • Start date Start date
Are these photos untouched morris or did you use some program to eliminate the noise?
 
I did not think of CA, but you will get sharper images if you remove the CA by reducing the saturation on the channel that is the same color as the CA before changing the mode to gray scale.

Morris




The pictures say it all.

Both taken at ISO 1600 with S602.

Morris
Yes! Also makes wonders with the CA problems.
--

Jose M. Rodriguez
Puerto Rico
Canon A10, Fuji 2650, Fuji S602Z
 
Hoogie, in the color photo, I selected the shadow area above the cat in PhotoShop and then applied one of the noise filters. The rest of the image is as it was as far as noise goes. I also ran USM and adjusted curves in the color image.

To create the B&W I used the modified color image and then changed mode to gray scale and then adjusted curves to increase contrast. I’m very happy with the results, although I would like to have the color.

Morris
Are these photos untouched morris or did you use some program to
eliminate the noise?
 
Nice results morris.....have you tried a program called "neat image" i tried it last night its purpose is to eliminate noise and i was very impressed with the results!
 
Cute, mellow kitty. Looks like he had a nice big piece of steak for dinner.

Whats the neat image site? Nevermind. Let me try neatimage.com You cant do all that cool stuff on PE, unless I just have'nt figured it out yet.
Nice results morris.....have you tried a program called "neat
image" i tried it last night its purpose is to eliminate noise and
i was very impressed with the results!
 
Whats the neat image site? Nevermind. Let me try neatimage.com
You cant do all that cool stuff on PE, unless I just have'nt
figured it out yet.
Neat Image is wonderful, I'm pretty much using it daily at the moment. I take a lot of live music photos and always in low light necessitating ISO 400, so I always get noise, it works wonders for some of the photos - I posted some 'before and afters' recently, I'll see if they're still there . . . they must be . . . here goes:

Before, the photo was re-sampled etc. for web publishing:



Neat Image was applied to the original, then it was resampled etc.:



--
Fuji S602Z and 2800Z
http://www.zenadsl5251.zen.co.uk/photos/
 
Yes I have tried Neat Image Hoogie. It was the first thing I tried on this image and it was the first thing I rejected as it stole all the sharpness from the image. In general I would rather have sharp photos with noise than blurry ones that are cleaner.

Thank you,
Morris
Nice results morris.....have you tried a program called "neat
image" i tried it last night its purpose is to eliminate noise and
i was very impressed with the results!
 
Yes I have tried Neat Image Hoogie. It was the first thing I tried
on this image and it was the first thing I rejected as it stole all
the sharpness from the image. In general I would rather have sharp
photos with noise than blurry ones that are cleaner.
That would suggest that perhaps you hadn't appropriately tweaked the settings, it can take some work to get the right result with some complicated images and a bit of trial and error - at least you can preview specific areas before comitting to the settings. I have found very few noisy images that couldn't be improved significantly using it, without loss of detail. In some detail-busy images, like the puma's fur you no doubt need to reduce the amount of filtration applied - with much less in the detail, more in the smooth areas. I haven't found it makes any image 'blurry' with the appropriate settings.

Great photos anyway - I thought my big ginger moggie Norris had big paws!

--
Fuji S602Z and 2800Z
http://www.zenadsl5251.zen.co.uk/photos/
 
Boo, the second image is clearly sharper than the first, what did the sharpening?

Morris
Whats the neat image site? Nevermind. Let me try neatimage.com
You cant do all that cool stuff on PE, unless I just have'nt
figured it out yet.
Neat Image is wonderful, I'm pretty much using it daily at the
moment. I take a lot of live music photos and always in low light
necessitating ISO 400, so I always get noise, it works wonders for
some of the photos - I posted some 'before and afters' recently,
I'll see if they're still there . . . they must be . . . here goes:

Before, the photo was re-sampled etc. for web publishing:



Neat Image was applied to the original, then it was resampled etc.:



--
Fuji S602Z and 2800Z
http://www.zenadsl5251.zen.co.uk/photos/
 
Thank you Boo,

I think I will try and download the latest version and see how it dose.

Morris
Yes I have tried Neat Image Hoogie. It was the first thing I tried
on this image and it was the first thing I rejected as it stole all
the sharpness from the image. In general I would rather have sharp
photos with noise than blurry ones that are cleaner.
That would suggest that perhaps you hadn't appropriately tweaked
the settings, it can take some work to get the right result with
some complicated images and a bit of trial and error - at least you
can preview specific areas before comitting to the settings. I
have found very few noisy images that couldn't be improved
significantly using it, without loss of detail. In some
detail-busy images, like the puma's fur you no doubt need to reduce
the amount of filtration applied - with much less in the detail,
more in the smooth areas. I haven't found it makes any image
'blurry' with the appropriate settings.

Great photos anyway - I thought my big ginger moggie Norris had big
paws!

--
Fuji S602Z and 2800Z
http://www.zenadsl5251.zen.co.uk/photos/
 
Hey, check out my solution!! And let me know what you think!
Sorry to be rude, but does it actually look better to you? I'm not sure if you're actually being serious or not. I like my photos sharper than many people as a matter of taste and that is way further than I'd find acceptable.

Morris's original has some noise on the fur, but yours is a major step backwards from that.

--
Fuji S602Z and 2800Z
http://www.zenadsl5251.zen.co.uk/photos/
 
Boo, the second image is clearly sharper than the first, what did
the sharpening?
I don't remember doing anything drammatically different in the work flow between the two versions, apart from Neat Image, which worked especially well on that particular batch of images - they all improved drammatically for it (I'd saved at Normal, the camera was still very new), which was a pest as I had to rework all 60 images on the web site as once I'd done a few, it showed up the rest as vastly inferior, so it had to be done!

I tend to Neat Image and save a duplicate set of originals in a sub-directory, then do any colour, curves etc. work and retouching in PSP7, then copy into Irfan View as the last stage, re-sample using Lanczos, then sometimes I shapern in Irfan, or where less is required, unsharp mask in PSP - copy and paste back and save as/export.

I have also been experimenting with quite hard sharpening before resampling (works best with big reductions in size) and on some images that produces a better result than sharpening last - a bit of trial and error is required.

--
Fuji S602Z and 2800Z
http://www.zenadsl5251.zen.co.uk/photos/
 
Thanks for the feedback, I will take it into consideration in future endeavours as I play around with this hobby!

And yes, I was being serious, but I never considered it a major step back in any way... so no, you're not being rude, but just painfully honest, which is appreciated :)

Guess I focussed more on the noise in the background, which is clearly reduced in the touched up version., and bringing out the focus on the cat, rather the surrounding noise. But yes, I guess it was a bit oversharpened.

IMHO, the second is better. First glance, for the average viewer, the main focus in the first one is the background with all its noise. Second one, granted, the noise is still there, but the viewers attention is immediately drawn to the cat - which is the whole purpose of the picture to begin with. Only pixel nuts would immediately eye-ball the detail of the fur.

Neat Image was used to clean up and sharpen the image and then some white balance adjustment to get the focus away from the background.
Hey, check out my solution!! And let me know what you think!
Sorry to be rude, but does it actually look better to you? I'm not
sure if you're actually being serious or not. I like my photos
sharper than many people as a matter of taste and that is way
further than I'd find acceptable.

Morris's original has some noise on the fur, but yours is a major
step backwards from that.

--
Fuji S602Z and 2800Z
http://www.zenadsl5251.zen.co.uk/photos/
 

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