[sane-devel] Coolscan dust-removal: error messages & fu-script

[Laurent-jan]

Laurent-jan wrote:
> Hi,
> 
<...> 

When scanning the IR channel via xsane as a GIMP-plug-in
> I use a batchscan, with two times the same area. After the
> first scan (the RGB-image) I get 4 error messages:
> 
> Failed to set value of option green-gamma-table: Invalid argument
> (same for the other colors)
> and
> 
> Failed to start scanner: Invalid argument
> 
> The RGB-version of the image apears.
> 
> I click away the messages, and restart a batchscan
> 
> The IR-grayscale image apears, with an error-message:
> 
> Failed to start scanner: Invalid argument
> 
> There is some logic to the messages that I can understand,
> the IR being a grayscale. But it is not very userfriendly.

Eh, I'm afraid I was to focussed on using batchscan to get the
image at a single mouse-click.

Just clicking the scan-button twice works just fine, without
error messages.

Sorry 'bout that.

Maybe a hint for those who'll try my fu-script: play with
brightness/contrast on the IR-image to get a good dust-mask
that is a bit black&white.

ljm

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