Re: Adjusting contrast and brightness

Oliver Rauch (oliver.rauch@Wolfsburg.DE)
Wed, 02 Dec 1998 18:03:31 +0100

William L. Sebok wrote:

> David Fox says:
> > What I miss from the Windows scanning software is the way it could
> > automatically choose good settings for the brightness and contrast
> > based on the selected section of the preview. I'm interested in
> > implementing this for xscanimage, can anyone point me to a good
> > algorithm for doing this, or to a source of good algorithms?
>
> Actually, automatically choosing brightness, contrast and gamma from a
> selection on the preview is exactly the feature on the windows driver for
> my Umax S12 that I miss most in sane. That and being able to zoom the preview
> window to make a decently precise selection.
>

Will all be included into my new frontend.
Online gamma/contrast/brightness-changes already work,
automatic contrast/brightness is easy to implement.

I think I will make a pre-alpha-version available next week!

Bye
Oliver

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