I forgot to mention that your low opinion of the scans may be adversely
affected by viewing them on a low cost LCD monitor or even a good but
uncalibrated CRT. If the only tool I had to view your scans was the
Krappy Kolor screen on my Dell Vostro laptop I wouldn't have a high
opinion of them either.
Chuck Norcutt
Chuck Norcutt wrote:
> Try this:
> <http://www.luminous-landscape.com/tutorials/understanding-series/understanding-histograms.shtml>
>
>
>
> The scans are at least as good as any print you might have had made at
> other than a custom processor. The advantage is that the scans contain
> almost all of the data you could ask for to do your own digital
> manipulation of the image. If you'd like to pick one that you really
> wish had come out better, send me the full size scan and I'll work it
> for you and send it back to show you (as well as I can at least) how the
> image can be improved before printing.
>
> Chuck Norcutt
>
> Brent wrote:
>> Hmm.. thanks.. maybe I need to reset my expectations when it comes
>> to film scanning.
>>
>> Does anyone have any recommendations as to a web resource I could use
>> to learn about histograms? I understand a little bit, and can tell
>> when highlights are clipping or I'm losing information with gaps in
>> the histogram but if there's a good resource out there on histograms
>> and adjusting "levels", and what it all actually represents and the
>> theory behind it, that would be very interesting.
>>
>> Brent
>>
>> On 28/11/2008, at 12:00 AM, Chuck Norcutt wrote:
>>
>>> Actually, I think the scans look pretty good. If you check the
>>> histograms they've all been done so as to preserve the highlights and
>>> only the darker shadows are lost if the the dynamic range is too high.
>>> Doing better I think would require some sort of HDR technique. It
>>> could
>>> also be that the shadow detail simply isn't on the film but I have no
>>> was to assess that. The exception to this image goodness is the image
>>> of the bird. It has a very good histogram but shows some sort of
>>> bright
>>> artifacts around the edge of the breast and elsewhere where there are
>>> strong contrasts between dark and light. But it could be these were
>>> introduced during downsizing and sharpening. Check the original
>>> scan to
>>> see if it's there too.
>>>
>>> Some of the shots can be improved a bit with a little post processing
>>> adjustment of shadows and highlights but most all of the image
>>> brightness data is there for you to work with.
>>>
>>> Chuck Norcutt
>>
>>
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>>
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>
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