In a message dated 1/11/2001 5:08:12 PM EST, [EMAIL PROTECTED] writes:
> It sounds similar to the way I manipulate raw color images in PS when they
> come out of Vuescan or wherever, which is to convert to LAB and do my
levels
> and gamma corrections on the L channel, then convert back to RGB to do a
> color balance.
This is similar to what VueScan does, but there are problems with
changing only the L channel and then converting back to RGB.
You might try an experiment. Apply a gamma correction to the
L channel using Photoshop, then save as RGB. Do the same
correction with VueScan's "Color|Image brightness" function
and save the image. Compare the two.
Do this for increasing values of gamma (or image brightness)
and see if the colors get paler in Photoshop as the overall
image gets brighter. Also, pay close attention to what
happens to colors that are saturated in each image.
Regards,
Ed Hamrick
