[sane-devel] Re: gamma correction procedure
Stefan Schlörholz
stefan at schloerholz.de
Thu Feb 26 16:39:33 GMT 2004
Frank Peters schrieb am Donnerstag, 26. Februar 2004 17:20:
> On Thu, 26 Feb 2004 12:17:53 +0100
> Stefan Schlörholz <stefan at schloerholz.de> wrote:
Hello Frank,
> > Could you give hints or a description how to proceed to get colour
> > correction in sane?
>
> The difference between Linux and MS Windows is that Linux requires
> from the user a lot more understanding of the basic concepts. But
> with a little bit of motivation and effort, the process is easy to
> learn.
sorry I forgot to mention that I collected some information about ICM on
the net allready. I am aware of the fact that the difference in Linux
scans and Windows scan is due to the fact that the Scanner manufacturer
provided a frontend to scan a reference slide, which also was packaged
with the scanner, and that the so obtained profile is automatically is
applied to the scan.
Thanks for the detailed introduction anyway.
> standard that is built into most recent computer monitors). For
> this, you will need to acquire a calibration target from Coloraid
> (http://targets.coloraid.de). This should be your only investment
> of hard cash ($15 US).
Do you think the slide provided by the scanner manufacturer will do
also?
> Scanner Space ------------------------> Printing Space
> scanner profile
> printer profile
But if I understand correctly this printer profile is different to the
printer profile needed to convert from monitor to printer, right?
> for modifying the source code. For all makefiles in the
> lprof-1.09/qt sub-directories, do the following:
>
> 1) Change -lqt to -lqt-mt in the POSTLIB variable.
I recall having it done for some makefiles allready but I do not know
for what project.
> The program should now compile and provide a nice and easy to use
> graphical interface.
This is a GUI to generate an ICM profile only? The conversion needs to
be done manually, e.g. using ImageMagick (IIRC) by passing the scan and
the profile to e.g. convert?
Is there a chance to automatically have the ICM profile applied when
scanning automatically using xsane?
Thanks again
Stefan
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