Commands Used with the IMGCTRL, IMGOP and PICFILL Functions |
Dithers the selected image to a monochrome black and white image
rc=IMGOP(task-id,
'DITHER_BW');
|
region-id=PICFILL(graphenv-id, type, ulr, ulc, lrr,
lrc, source<, 'DITHER_BW'<, arguments>>);
|
This command reduces an image to a black-and-white
image. DITHER_BW is much more efficient for this task than the general purpose
DITHER command.
Dither an image either to black and white or to a color
map:
if
(dither=1) then
do;
rc=imgop(task-id,'DITHER_BW');
rc=imgop(task-id,'PASTE');
end;
if (dither=2) then
do;
rc=imgop(task-id,'GENERATE_CMAP',
'COLORRAMP',5,5,4);
rc=imgop(task-id,'DITHER');
rc=imgop(task-id,'PASTE');
end;
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