Digital BW, The Print

Hi Todd,

> But how 'bout showing us some of your posterized images for our
> edification?

Well, that is a problem.  You need to see prints, not web images...  Images
can look fine on the screen, but when you print them, they are posterized.

> It's most interesting when the same moves are made to a duplicate
> 8-bit and
> 16-bit file and the two are compared. If you remember my little article on
> the topic
> (<http://www.ourwebmaster.com/piezography3000/20020106ToddFlashner1.htm>),
> which did use a BW image, fairly substantial moves can be made before
> deterioration shows.

But that is VERY image dependant...

> Remember, we only need to retain a max of about 100
> tones for a BW print; which means we can lose 156 out of 256.

Actually, no.  It depends on WHAT tones you "lose" and where they are.

> It's not just if tones get lost,
> it's how many, and where in the image, and what type of image.

Exactly!

Austin