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[OM] What should a scanning program (not) do?

Subject: [OM] What should a scanning program (not) do?
From: Nils Frohberg <nilsf@xxxxxxx>
Date: Wed, 28 Dec 2005 17:57:37 +0100
Hi,

I didn't get out shooting film much this year. In order to ease my bad
conscience, I wrote a very elementary scanning application for my FS4000.
Up to now, it can't do much more than scan stuff and write it into a TIFF
file, invert a negative, and remove the orange film mask (& compute the
orange mask from a clean CN strip). [Fortunately, the FS4000 is sane
enough to speak real "scanner SCSI2".]

This is not supposed to be a fancy picture editing software. In fact, it
doesn't have any graphical frontend. You basically tell it which frame to
scan on your film holder, and the size/offset/dpi, and it goes to work.

The output is not meant to look nice, but rather to keep all information
in the file. You have to use picture editing software to adjust color
tint, gamma, etc. (why reinvent the wheel?)

The next thing I want to implement is getting the alpha channel filled
with IR data, and enable multiple passes of a picture (also with
different exposure setting in the scanner to fill the higher bits in the
TIFF file.) I also have to try to get better contrast out of CN, it
is very dull after I inverted it.

Does anybody have an idea for any other useful function? I.e., something
that shouldn't be done in postediting? Or am I the only strange guy in
town that wants be be sure that the raw data from the scanner is on disk
to be messed around with by programs that were written for that exact
purpose (Photoshop, PWP, aso..)?

Thanks,

Nils

BTW: Yeah, I know VueScan is great, but it doesn't run on my computer
platform. :)

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