I checked again last night on the behavior of my Photosmart R032 under
xscanimage. After deleting my .sane/ to make sure there's nothing odd
in there, here's what I did (and observed):
$ xscanimage [program starts, I choose /dev/scanner]
Preview Window [window appears]
[feed slide to PS, PS pulls in the slide a few mm]
Acquire Preview [preview acquired as slide feeds *into* the PS]
[preview looks okay, needs a lot of gamma correction 1.0 -> 2.2 or so]
[slide is now *inside* the scanner]
Scan [image is acquired as slide is pushed back *out* of the scanner]
[so far, so good]
Acquire Preview [again]
[this time, the preview is acquired and the slide returns to its
*out* position, unlike the first time]
Scan [this time, the slide feeds slowly back into the scanner, then
immediately reverses direction, and *then* data is acquired. Also, I
believe this is where the few mm of slip occurs.]
Also, my test slide is a fairly typical scene, albeit without any sky
showing. I find that the default straight gamma curve results in a very
dark image--to fix it with gimp's levels tool, I need to set the white
point to 153 (out of 255) and the gamma to about 2.50. Of course, the
image gets reduced to something like 5 bits of precision after that kind
of rough treatment. Does this mean the R032 is going to require a
downloaded tone map just to produce a decent image?
Last night, I tried looking at a log file produced by VueSmart. I put
some up at the following URLs:
http://www.students.uiuc.edu/~pitney/vuesmart1.log
http://www.students.uiuc.edu/~pitney/vuesmart2.log
http://www.students.uiuc.edu/~pitney/vuesmart3.log
The first scan is of a slide using Kodak Ektachrome correction and 4x
scan speed (I think this means 2400/4 dpi). The second scan is at 2x
speed with the same correction. The third is at 2x but with a Kodak
Kodachrome color correction.
I wasn't able to find some of the SCL codes in my SCL guide, *s10323R
for instance.
Hope this helps (or interests someone besides me).
John Pitney
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