The code I sent does seem to work, but the mouse input is difficult
to get right. By default it uses image coordinates, while the CI
kernel really wants pixels. So I don't know the best way to line up
the mouse input with the image, but I've put together a little
composition that works except that the mouse position is offset from
the image. It uses a video input, but if you don't have a video
source replace it with an Image Importer.
--Sam
Sam,
I actually just got to that point before I read
your message. This code does produce the desired
output based on the first row of the image however
when moving my mouse up and down the opacity of the
image changes rather than scanning through the y
values. This doesn't make sense to me. Could you try
this and suggest a reason why this happens?
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