HPLIP

can not change the contrast of the scanned image with hp-scan

Asked by Slava

I try to use the command like this
hp-scan -d hpaio:/usb/HP_LaserJet_M1120_MFP?serial=MF37LSW --dest=file --mode=color --resolution=100 --contrast=20 -o 1.jpg
to scan th eimage but it looks like the the --contrast=20 setting doesn't take any effect.

How to make the contrast parameter operational?

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Sarbeswar Meher
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Sarbeswar Meher (sarbeswar-meher) said : 		#1

Hi,

  The contrast parameter in not yet implemented in HPLIP.

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Slava (dbazim) said : 		#2

Is any workaround available?

2012/4/19, Sarbeswar Meher <email address hidden>:
> Your question #194066 on HPLIP changed:
> https://answers.launchpad.net/hplip/+question/194066
>
> Status: Open => Answered
>
> Sarbeswar Meher proposed the following answer:
> Hi,
>
> The contrast parameter in not yet implemented in HPLIP.
>
> --
> If this answers your question, please go to the following page to let us
> know that it is solved:
> https://answers.launchpad.net/hplip/+question/194066/+confirm?answer_id=0
>
> If you still need help, you can reply to this email or go to the
> following page to enter your feedback:
> https://answers.launchpad.net/hplip/+question/194066
>
> You received this question notification because you asked the question.
>

--
Спасибо,

Вячеслав Зимовец

Revision history for this message
Best Sarbeswar Meher (sarbeswar-meher) said : 		#3

No. Once scan is done, you can open the scanned image in gimp application and there you can change contrast.

Revision history for this message
Slava (dbazim) said : 		#4

Understood. I am thinking of ImageMagick as I need command-line solution.
Thanks.