In Calamus all pictures can have control curves associated with them. These curves are taken into account when the picture is output, with the original picture data remaining unchanged. As soon as the control curve dialog is called with a selected picture and quit with the [OK] butto, the picture has a control curve assigned to it. This can also be neutral, of course, so the image data remains unchanged for the output.
The control curves change the intensity of the individual colour planes, which results in the original data being displayed with modifications according to the settings. Often false colours are produced or linearity is disturbed.
The Paint module works on the original data, which leads to a colour set in the module being altered in the picture by the control curves, and then looking completely different in the screen display. Hence the module inquires as soon as you select a picture for processing how it should handle any control curves that are present.
Select Ignore
to take possible colour falsification on the
screen into account. In that case the control curves set for the
picture are preserved. This can be done without problems when neutral
control curves are present.
If you want the colours to be calculated into the picture exactly
as they look, then select Apply
. Now the computer combines the
set control curves with the picture data so that though the picture
looks exactly the same as before, it now has neutral control lines.
This ensures that no irritations arise during picture processing.
Afterwards the picture no longer has control curves associated with
it; if it is reselected then the query no longer appears.
Select [Cancel] if you are not certain about what is happening.
