Question

[Bill Campbell]

On Sat, Mar 15, 2003 at 07:47:35AM -0600, ronnie gauthier wrote:
>This might help.
>http://linux.nixcraft.com/h2crh7xis/

Interesting approach, but it may well be RH specific.

I got reasonable results using the digital camera on a tripod.  It's still
not perfect, but workable.  The draft I'm working on can be seen here:

	http://support.celestial.com/doc/installsuse81/

This is a bit better than my first try I changed the angle of the screen to
be vertical rather than slightly tilted up which minimized the trapezoid
effect.  The camera was tilted slightly so the shots aren't perfectly
framed, but it's probably close enough for government work.

One thing I found out very early is that a long exposure is necessary to
get the screen image correct.  These shots were all made using with a
manual setting 1 second exposure at F-11 aperture.  I tried various WB
(White Balance) settings, ending up on the Olympus 2020 Zoom's AUTO
setting.  This got the screen pretty well, but the monitor body was a
fairly dark reddish brown.

I did a rough edit using the gimp on the images, basically cropping out the
monitor body, then Image->Colors->Levels->Auto to get them to their current
state.  Finally I wrote a very simple shell script that processed these
edited images with the ImageMagik ``convert'' program to create
consistently sized images for the web documentation:

    for image in images.raw/*.jpg ; do
        fname=`basename $image`
        convert -geometry 800x600 $image images/$fname
        convert -geometry 400x300 $image thumbnails/$fname
    done

Bill
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