[sane-devel] Canon LiDE 220 - 4800 dpi scan has duplicated pixels in X direction
net147 at gmail.com
Fri Jun 17 08:36:17 UTC 2016
On 23 March 2016 at 07:22, Stef <stef.dev at free.fr> wrote:
> On 17/03/2016 08:56, Jonathan Liu wrote:
>> I have opened the following ticket for 4800 dpi scanning on Canon LiDE
>> I just want to confirm, does this scanner support 4800 dpi x 4800 dpi
>> scanning as indicated in the manufacturer specification? I was
>> checking 4800 dpi scan in GIMP and I see blocks of 2 duplicated pixels
>> in the X direction when scanned using SANE but not when using Canon
>> ScanGear on Windows.
> the backend has only 2400 optical dpi x 4800 motor dpi. Pixels are
> 'doubled' to get proper aspect ratio for the result.
> I'll try to find some time to do a wrireshark recording of a 4800x4800
> scan to check if it's possible to implement it in the genesys backend.
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