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Photo Restoration Repairing damaged photos

Improving the quality of a photo (reducing noise)

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  #1  
Old 05-26-2002, 04:32 PM
Source Source is offline
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Improving the quality of a photo (reducing noise)

Hey all,

I'm trying to reduce the noise of a photograph i have in Photoshop.

http://www.geocities.com/gifs10k/television.html

I want to try and reduce the noise in this photo as much as possible and generally improve the quality of the photo.

I've used Photoshop quite a bit, but never to touch up a photo.

Can anyone tell me how i can do this?

Thank you.
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  #2  
Old 05-26-2002, 06:06 PM
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DannyRaphael DannyRaphael is offline
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Hey, Source... Welcome to the fray.

A filter you might try is BLUR/Smart Blur. This filter "attempts" to retain edges while blurring other areas. You'll no doubt need to tweek the sliders to get a feel for it. This filter works pretty good on "objects." Don't try this on people!

Also... If your image is low resolution, e.g., 72 ppi like it was for the attachment, you might have to temporarily upsize it to, say, 288 ppi before you run Smart Blur, otherwise you'll probably get noticeable banding in areas where tone changes quickly over a short span.

Perhaps you'll be able to see the difference on this attachment.

------
Stay tuned. In the next 24 hours or so, other folks will no doubt post alternative methods. This being a holiday weekend, replies will probably be a little slower in coming that usual.

In any event hope this gives you food for thought.

Again, welcome to RetouchPro.

DannyR
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  #3  
Old 05-26-2002, 07:11 PM
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Flora Flora is offline
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Welcome to RP Source!

In addition to Danny's tip, here is a very useful address :

http://www.neatimage.com/download.html

Here you'll find an incredibly good (and free) program for removing noise from images...

Here is the "corrected" version of your original picture, run through Neat Image.
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  #4  
Old 05-26-2002, 07:51 PM
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Ed_L Ed_L is offline
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What a difference! Thanks for posting that Flora.

Ed
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  #5  
Old 05-27-2002, 12:11 AM
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fugitive fugitive is offline
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Didn't think you were gonna keep me outta this did ya?
I did it in PSP7 edge preserving smooth, unsharp mask, twice.
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  #6  
Old 05-27-2002, 10:05 AM
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jerry jerry is offline
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Thanks Flora

I have been meaning to download this program and your post just reminded me.. I downloaded it and will give it a try.

Thanks
Jerry

Danny and Fugitive

Your corrections look really good also..
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  #7  
Old 05-27-2002, 11:51 AM
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Flora Flora is offline
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Hi Ed, Fugitive, Jerry!

You are welcome....I got this address from one of the tips I read in one of the RP Forums... Downloaded the program, installed it...and never looked back! ...

Why go through all the trouble of doing something....if someone or, (like in this case), something else can do it even better for me????

P.S. Fugitive...I just wanted to tell you that you managed to clean the image just as good as Neat Image, though!
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  #8  
Old 05-27-2002, 12:38 PM
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DannyRaphael DannyRaphael is offline
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Flora...

Ditto the above kudos. Though I've seen ref. to this tool before, I wasn't particularly impressed with the examples from their website.

YOUR example, however, sold me!

Are you using the demo/free version or did you get the PRO version?

From a techniques perspective, do you save your PS image as .tif, run Neat Image against the .tif and then reopen with PS to make further enhancements?

Also, is there a particular point in your workflow that you do the degrain process, e.g., at the beginning, near the end or "it depends."

Thanks for the enlightment.

~DannyR~
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  #9  
Old 05-27-2002, 01:18 PM
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Flora Flora is offline
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Hi Danny!

I am using their Demo/Free version which does practically the same as the Pro version...the only catch is that, while opening various image formats, (not PS, though), it lets you save the files in .bmp format only!

In other words:

1. I save my image in .tif
2. I run it through Neat Image
3. I save it in .bmp (the only one allowed in the Demo version)
4. I send the image to PS for further enhancements!

As for when I run an image through Neat Image...well "it depends".... If the image is too noisy to start with, I go through the "Neat Procedure" at the beginning....otherwise I prefer to work on what is there and save the "Denoising" near the end...

Glad I could help....
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  #10  
Old 05-27-2002, 08:27 PM
Mig Mig is offline
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Smart Blur seems to work well with this type of thing because smart blur leaves the edges intact, more or less. After running smart blur take the blur tool and run it over any banding that you see to further smooth it out. This also works well on skin.

Mig
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