On 06/28/2014 11:48 PM, Stef wrote:
> Hello,
>
> I have eventually found how to fix the coarse gain calibration bug
> on the HP3670c. You can pull the latest SANE's git version to use it.
You, Sir, are a real boss!
Your commit works beautifully! I have tried three scans so far with
great
On 05/24/2014 08:25 AM, Octavio Alvarez wrote:
> On 05/23/2014 10:58 PM, Stef wrote:
>> target_code is giving the desired target value for white. Once this
>> value is correct : not too low, and not too high to avoid
>> "solarization", you should turn to tuning
On 05/23/2014 10:58 PM, Stef wrote:
> target_code is giving the desired target value for white. Once this
> value is correct : not too low, and not too high to avoid
> "solarization", you should turn to tuning gamma values. They are defined
> in genesys_devices.c for the CCD_HP3670. Currently i
On 05/20/2014 12:27 AM, Octavio Alvarez wrote:
> So far, I have repeated some of the tests with scanimage only and
> target_code seems to be too high for my taste. 0x8000 seems like a lot
> better value. I'm still testing though.
Hi, Stef. I have made some tests using sca
On 05/19/2014 09:51 PM, Octavio Alvarez wrote:
> I made sure I used the most recent commit isolated from the install from
> my system. I used xscanimage under ~/sane-install/bin.
>
I'd like to correct myself.
Please take my previous message with a grain of salt (or disregard it
al
On 05/12/2014 09:40 PM, Stef wrote:
> On 05/04/2014 03:10, Octavio Alvarez wrote:
>> On 03/04/14 12:20, Stef wrote:
>>> On 01/04/2014 05:42, Octavio Alvarez wrote:
>>>> On 03/31/2014 08:37 PM, Stef wrote:
>>>>> thanks for all the data. It
On 03/04/14 12:20, Stef wrote:
> On 01/04/2014 05:42, Octavio Alvarez wrote:
>> On 03/31/2014 08:37 PM, Stef wrote:
>>> thanks for all the data. It'll take me a couple of days to analyze
>>> them and compare with the results of my hp3670.
>> If you al
On 03/31/2014 08:37 PM, Stef wrote:
> thanks for all the data. It'll take me a couple of days to analyze
> them and compare with the results of my hp3670.
If you also have one and works then we may have different versions of
the 3670. Mine has regulatory model GRLYB-0306.
On 03/31/2014 07:34 AM, Stef wrote:
> the problem is coming from incorrect calibration by the backend.
> Gain is too high. Could you please run SANE 1.0.24 backend version with
> traces enabled, and send me log file and *.pnm files created during
> calibration ?
> In a command shell type:
> ex
Hi.
I'm trying to get my HP Scanjet 3670 under Linux. The scanner works (it
scans and all) but the scan has some color distortion.
I confirmed the scanner works: here is a comparison of a section of a
scanned image in both, Windows and Linux:
http://blog.alvarezp.org/files/scan-hp3670/scan-hp367
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