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[OM] Re: Noise reduction

Subject: [OM] Re: Noise reduction
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Fri, 08 Dec 2006 09:02:50 -0500
Ah, yes, of course.  The reason to upgrade to the real thing.

Chuck Norcutt

Stuart Robinson wrote:

> It states on the pdf manual that the demo loses its exif.
> 
> Stu
> 
> Chuck Norcutt wrote:
> 
>>I meant to suggest that you should check the help file for mention of 
>>EXIF.  You may find that preserving EXIF is an option.  I never paid any 
>>attention to that since I was only cleaning up film scans which had no 
>>EXIF data.
>>
>>Chuck Norcutt
>>
>>Chuck Norcutt wrote:
>>
>>  
>>
>>>Check the dimensions of the image.  You'll probably find the number of 
>>>pixels is still the same.  My guess is that by reducing the amount of 
>>>noise you've reduced the information content of the image and a JPEG 
>>>compression can be more efficient.
>>>
>>>Chuck Norcutt
>>>
>>>Stuart Robinson wrote:
>>>
>>>
>>>    
>>>
>>>>Amazing. In the half  hour since you posted this, I've downloaded Neat 
>>>>Image & had a play with one image. The difference is remarkable! One 
>>>>thing though & I don't know if this happens on the full version is, my 
>>>>original image was 3.44MB after filtering it became 1.06MB. It also 
>>>>loses it's exif data, that's easy to get around by backing it up first 
>>>>with Exifer. Why though has the file shrunk?
>>>>
>>>>Stu
>>>>
>>>>Chuck Norcutt wrote:
>>>>
>>>>
>>>>      
>>>>
>>>>>I think the two major contenders are Neat Image and Noise Ninja.  These 
>>>>>reviews are a couple of years old and I would suspect that, 
>>>>>technologically, they're probably equal.  At the time of the reviews 
>>>>>both were only available as stand alones but I would guess they're 
>>>>>probably available as PS plug-ins by now.
>>>>>
>>>>>I have old, freebie versions of both and I preferred Neat Image but I 
>>>>>haven't done any serious film scanning in a long time which is where it 
>>>>>was really needed.  VueScan incorporates grain/noise reduction in its 
>>>>>filter menu but I've never used that part of VueScan since it was added. 
>>>>>I keep the Min*lta A1 at ISO 100 95% of the time so there is really no 
>>>>>need for noise reduction there.  I've taken a few ISO 3200 shots with 
>>>>>the 5D but have never had to print anything large taken at that speed 
>>>>>and haven't been driven to clean any images.
>>>>>
>>>>><http://www.luminous-landscape.com/reviews/software/noise-ninja.shtml>
>>>>><http://www.luminous-landscape.com/reviews/software/neatimage.shtml>
>>>>>
>>>>>Fred Miranda also has noise reduction plug-in software that works on 
>>>>>scanned film or JPEGs or raw files right out of the camera for only $20. 
>>>>>Sounds useful and inexpensive but I don't know anything else about it.
>>>>><http://www.fredmiranda.com/shopping/Xpro>
>>>>>
>>>>>Picture Window Pro also has noise reduction as part of the "advanced 
>>>>>sharpen" function but I've never use the noise reduction part.
>>>>>
>>>>>Chuck Norcutt
>>>>>
>>>>>
>>>>>
>>>>>Phil wrote:
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>        
>>>>>
>>>>>>Do any you guys have any experience with noise reduction programs
>>>>>>Would appreciate any guidance
>>>>>>
>>>>>>Thanks
>>>>>>
>>>>>>Phil
>>>>>>
>>>>>>
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>>>>>>  
>>>>>>          
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>>>>
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>>>>
>>>>      
>>>
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>>>    
>>
>>
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>>  
> 
> 
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