Many sites discuss using all three eyedroppers to set black, neutral
and white levels. Suppose you use the rightmost eyedropper and click
on a part of the image that is supposed to be white. This forces this
part to be white (provided you defined the eyedropper function to be
255,255,255) and presumably adjusts all other areas in the image
accordingly. If you then also use the leftmost eyedropper to click on
a black area, it makes that area black and presumably also adjusts all
other areas. You could also choose the middle eyedropper to set an
area of the image to neutral, again adjusting all other areas.
Doesn't the action with one eyedropper somehow undo or conflict with
the adjustment made with another eyedropper? Are you supposed to just
use one eyedropper per image?
Thanks.
