Ed: Appreciate the explanation... have another question... have a copy of VScan
6.4.5 which I decided to try with my Minolta Elit to scan some Reala negs... I
was able to get it to work with the scanner, but am unable to use Vuescan on a
previously scanned neg, which I have saved in PS6... I want to see how Vuescan
works on 16 bit linear scans (they appear as a neg in PS, where I then invert
them, this is proving to give me a better tonal range with much less highlight
washout, etc.) as far as processing the scans... or do you recommed using Vuescan
instead of the Minolta software from the beginning?
Thanks in advance
Mike Moore
[EMAIL PROTECTED] wrote:
> In a message dated 1/11/2001 2:16:53 PM EST, [EMAIL PROTECTED] writes:
>
> > > * Combined Image contrast and Image brightness into
> > > one option (Color|Image brightness) and improved
> > > the color constancy when changing image brightness
> >
> > Ah, I think I rather wish you hadn't done that Ed, it was fine as it was.
> > Isn't this less flexible?
>
> It turns out that using a simple gamma function for contrast wasn't
> working very well. If you used it to increase the overall brightness,
> the colors looked washed out. The brightness option in previous
> versions of VueScan was just a pixel multipler, and this was
> basically useless as well, since it just caused the white point to
> drop (the White point (%) option is far more useful).
>
> It turns out that the new "Color|Image brightness" option is a
> lot subtler than most people realize. Using it to increase or
> decrease the overall image brightness is similar to applying
> a gamma function (power function) but the colors don't fade
> when you use it to increase the brightness. It works quite
> well, and it does something that you can't do with curves
> in Photoshop.
>
> Regards,
> Ed Hamrick
