[sane-devel] multibyte PNM normal result of TPU scan with pixma backend?

[m. allan noah]

16 bit pnms are poorly supported. If you don't want 16 bit data, don't
ask for it from the backend :)

allan

On Fri, Aug 13, 2010 at 8:58 AM, Gernot Hassenpflug
<aikishugyo at gmail.com> wrote:
> Dear all,
>
> I just got some results from film scans with the new Canoscan 9000F.
> GIMP cannot open the file, complaining about unsupported maximum value
> (65535 below), indicating I think multibyte image. The header looks as
> follows:
>
> P6
> # XSane settings:
> #  resolution_x    =  300.0
> #  resolution_y    =  300.0
> #  gamma      IRGB = 1.09 1.00 1.00 1.00
> #  brightness IRGB =  0.8  0.0  0.0  0.0
> #  contrast   IRGB =  0.8  0.0  0.0  0.0
> #  color-management= 0
> #  cms-function    = 0
> #  cms-intent      = 0
> #  cms-bpc         = 0
> #  icm-profile     = z^?
> # XSANE data follows
> 01746 00901
> 65535
> ...<data>...
>
>
> I wonder if there is some setting that need to be made in the front
> end... if so I should let the user know. I can think of "reduce 16 bit
> image to 8 bit" in the Xsane options, but this is usually off by
> default. Other than that, I do not see any options I can discover.
>
> Regards,
> Gernot Hassenpflug
> --
> ISP Asahi-Net: http://asahi-net.jp/en/
> No.1 in Japan by customer satisfaction
> (Nikkei News, 7 July 2010)
>
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