Thanks very much, Herbie, for all your time and help. I think this will be a useful work-a--round until I can find a better fix.
The slow ROI drawing is caused by an image drawing bug with 16-bit multi-channel composite color images in "Color" mode. You can work around the bug by opening the Image>Colors>Channels Tool dialog and switching to "Composite" mode.
as always: a more than prompt analysis of the problem!
Have nice Easter days
The latest ImageJ daily build (1.51m21) fixes a bug that caused drawing of 16 and 32-bit multi-channel composite color images, in "Color" mode, to be slow.
Thanks very much, Wayne!I will give it a go tomorrow and report back. Thanks, again, Herbie and Wayne.
Good day Lucas,
I don't use Fiji but with ImageJ you go like this:
Help > Update ImageJ…
In the then opening dialog select "daily build" from the drop-down menu:
In the end this will presently download version 1.51m22.
Yeaaaaaa........ I absolutely did not see the 'daily build'.
Anyway, updated and WORKS GREAT!
Thanks for everything, Herbie and Wayne.