[sane-devel] Pixma driver for MG7550 produces stripes

[Rolf Bensch]

Hi Martin,

The backend isn't responsible for any artefacts, it handles the scanned
data 1:1 to the saved image colour file. The Pixma backend only
manipulates the images for grayscale and lineart (1 bit b/w) output formats.

OK, there is some loss with image compression algorithms. If you have
trouble with this, you should select lossless image formats.

Maybe you should test different scan resolutions.

Hope this helps.

Cheers,
Rolf



Am 18.08.2015 um 13:32 schrieb Martin:
> I noticed diagonal stripes on some scanned pictures.
> 
> In order to verify that it is not on the picture but an artifact of sane
> I scanned the same picture with Canon's scangear-progam on a
> Windows-system. That picture does not have the stripes.
> 
>  
> 
> Please find the image scanned with xsane attached.
> 
>  
> 
> Cheers,
> 
> Martin
> 
>  
>