[sane-devel] Canon LiDE 90

[Guillaume Gastebois]

Hello,

So. I tryed your patch with and without shading calibration :

with shading : same as bevor but calibration is now 4s long (see 
http://ggastebois.free.fr/lide90_snoop/no_shading.jpg and 
http://ggastebois.free.fr/lide90_snoop/no_shading.txt)

without shading : image with some vertical lines (but ve can see the 
dinausore). Calibration is 4s long (see 
http://ggastebois.free.fr/lide90_snoop/shading.jpg and 
http://ggastebois.free.fr/lide90_snoop/shading.txt)

Regards
Guillaume

Pierre Willenbrock a écrit :
> Pierre Willenbrock schrieb:
>> Guillaume Gastebois schrieb:
>>> Hello,
>>>
>>> I see that reg[2] was like 0x07. So INVOP was still set !!!
>>> I comment out offset_calibration in genesys_flatbed_calibration, set 
>>> reg[2] to 0x03, and I get a black image with a gray vertical line in the 
>>> middle !!!
>>> I try to reenable offset_calibration and I get : 
>>> http://ggastebois.free.fr/lide90_snoop/toto_10_0_0_invop_0.jpg
>>> In the central vertical line we can see a piece of my dinosause not 
>>> reverted !!! I think this works. And good news : the frontend seems to 
>>> be (or to be compatible) with a wolfson wm8199.
>>>
>>> If you remember, this gray line is on the vertical of the small black 
>>> piece (in calibration area). So calibration is better with black area !!
>>>
>> hmm. the shading calibration currently needs some black to work. But
>> good news. Now, where did i put that alternative offset_calibration code...
>>
> 
> obviously, in cvs, while thinking i'd only put the power-mode changes
> in.. The needed change is a one liner..
> 
> This should compile, but i don't know if it works. The shading
> calibration should still be commented out. offset_calibration,
> gain_calibration and led_calibration might work.
> 
> Regards,
>   Pierre
>