http://www.math.tu-berlin.de/funktion/bolsch/sane
mustek.c and mustek.h just replace files of the same name in
sane-0.73/backends.
(Hopefully it still works for the older models, but maybe I've changed
something accidentally.)
Some caveats:
1) Calibration ist not used yet.
2) ScanExpress models support only lineart, gray, color (1/8/24 bit).
3) Gamma tables are 256 bytes long, however, on sending them to the
scanner they're linearly interpolated to 4096 bytes.
4) Max. scan area is 216 mm * 292 mm starting at 0 mm * 0 mm.
5) In lineart mode only brightness adjust is used, contrast is
simply ignored.
6) When using high resolution, large scan area and color, the
scanned image may be corrupted (partly duplicated/shifted).
Seems to be a problem in the reader_process/scsi-interface.
Maybe my box is just too slow (old 486).
7) As I own only a SCSI model I can't state anything regarding
parallel port scanners. The docs for the command set mention
explicitly both types, so in theory they should work, too.
8) For testing I used only scanimage.
9) Problem reports welcome.
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