I'm trying to create a composite image. The main image is a jpeg read
from a file and the sub image is created during run time and I draw a
circle on perform various other filters to it then combine it with the
main image, but it leaves a white square background around the circle.
I've tried a dozen different things to make the background transparent,
but haven't had any luck. Can anyone give me a hint as to what I need
to do. I've include simplified code to help give an idea of what I'm
trying to do.
Image image("image.jpg");
Image bubble(Geometry(50,50),ColorRGB(60,179,113));
list<Drawable> drawList;
drawList.push_back(DrawableCircle(25,25,40,40));
drawList.push_back(DrawablePointSize(_fontSize));
// Do a lot of other stuff to circle
bubble.draw(drawList);
image.draw(DrawableCompositeImage(_bubbleX,_bubbleY,bubble)); //
"bubble" needs a transparent background
Thanks,
Steven
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