I discovered I had a trial copy of Focus Magic already installed but
never used. I used up a couple of its 5 trial image lives working on
the one you had linked. Focus Magic got rid of the regular dot pattern
running through the image without much difficulty (radius 5 or maybe 6
IIRC). That left an image with lots of white spots sprinkled about and
very visible on the men's coats. Presumably I should be able to use
Neat Image to clean that up but I really don't know how to use Neat
Image even though I have it installed. I will send a copy of it to your
personal email account. I also ran it though ACR and got rid of most of
the color cast but maybe that part was undesirable. :-)
Chuck Norcutt
Wayne Harridge wrote:
> Thanks Chuck, a few other avenues to explore.
>
> ...Wayne
>
>
>
>> Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx> wrote:
>>
>> Ctein devotes several pages to comparison of descreening methods for
>> removing half-tone dots in his book "Digital Restoration from Start to
>> Finish". This is the second edition, I have the first one.
>> <http://www.amazon.com/Digital-Restoration-Start-Finish-Second/dp/0240812
>> 085/ref=sr_1_1?ie=UTF8&s=books&qid=1274705735&sr=1-1>
>>
>> He shows (in increasing order of effectiveness): Dust & Scratches
>> filter, Gaussian Blur, Box Blur and Focus Magic.
>> <http://focusmagic.com/> The Focus Magic results do look almost magical
>>
>> in comparison after carefully adjusting the correction radius. The dots
>>
>> disappear and the image is much sharper.
>>
>> But if the regular grain pattern is caused by paper surface texture
>> pattern he recommends Neat Image which is his choice for a digital image
>>
>> noise reducer. Its proper use requires adjusting the high, mid and low
>> frequency filters to the specific paper pattern without filtering real
>> detail in the image.
>>
>> Chuck Norcutt
>>
>>
>> Wayne Harridge wrote:
>>> Does anyone on the list have any experience of descreening scanned
>> images ?
>>> A friend wants to produce the best print possible from a scan of a
>> printed
>>> photograph, it looks like it might be from a newspaper/magazine. He
>> doesn't
>>> have access to the original but has a scan made by the State Library
>> of
>>> Victoria as a starting point. The print screen seems to be pretty
>> well
>>> resolved in the scan which was done at 300dpi from the approx. 10"x8"
>>> printed image.
>>>
>>> I have uploaded the scan here:
>>> http://lrh.structuregraphs.com/images/roper.jpg (about 6Mb)
>>>
>>> Any suggestions welcome.
>>>
>>> ...Wayne
>>>
>>> Wayne Harridge
>>> http://lrh.structuregraphs.com/
>>>
>>>
>> --
>> _________________________________________________________________
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>> Themed Olympus Photo Exhibition: http://www.tope.nl/
>
> ...Wayne
>
> Wayne Harridge
>
> http://lrh.structuregraphs.com
--
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