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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