Re: Negatives to positives...

>Yes but you adjust the brightness contrast on the seperate channels r g
>b
>to effect the colour ballance you require.

Don't use Brightness/Contrast.

There are two reasons:

1. The Brightness/Contrast control is a "linear" control. What that means in
English is whenever you use it, it destroys information in the image by
clipping image detail in highlights and/or shadows.

2. The Brightness/Contrast control is too crude. It will affect the entire
channel overall regardless of the tonal range of the information in the
channel.

In general, the Brightness/Contrast control is only good for beginners who
don't mind destroying image information.

Learn to use the Curves command instead. You can do anything with Curves that
you can do with Brightness/Contrast, but with greater precision, and since
Curves is "nonlinear," it doesn't sacrifice image quality the way
Brightness/Contrast does.

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