I just tried it again but actually resized the image. At 25% the grain
appears to be gone. Re-enlarging back to original size shows some
weakened grain is still there but you just can't see it at the smaller size.
Chuck Norcutt
Chuck Norcutt wrote:
> All I did was display Chris's full pixel image sample in PhotoShop at
> 31%. To my eye the grain was nearly gone but not completely so.
>
> Chuck Norcutt
>
> C.H.Ling wrote:
>> I remember I have seen someone mentioned here that resize does not
>> reduce noise, I'm not sure if it is true. I did try to resize the
>> image and see no reduction of grain, could you tell me how you do it?
>>
>> C.H.Ling
>>
>> ----- Original Message ----- From: "Chuck Norcutt"
>>
>>> Well, I thought I was at double or more since since the image resolution
>>> was probably 500 ppi or less. But I didn't know about the film grain
>>> impact. Anyhow, since the image is already scanned at 4000 ppi it
>>> should only require downsizing and not rescanning. But my little
>>> experiment did show that grain was almost invisible when downsized to
>>> 31%... getting close to my 1000-1200 ppi... at least as final
>>> resolution.
>>>
>>> Chuck Norcutt
>>>
>>
>
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