| Commands Used with the IMGCTRL, IMGOP and PICFILL Functions |
Changes an image to a negative
|
rc=IMGOP(task-id, 'NEGATE');
|
region-id=PICFILL(graphenv-id,
type, ulr, ulc,
lrr, lrc, source<, 'NEGATE'<,
arguments>>);
|
NEGATE acts on the currently selected
image. It creates a photographic negative of the image by reversing the use
of dark/light colors. The negative is created by replacing each color with
its complement.
Create a negative of an image:
if (negative=1) then
rc=imgop(task-id,'NEGATE');
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