in reply to
As proof of concept this awful following script
which map a flower with transparency (if you wait a bit).
For sure if you only want no-rectangular corners, you just need
work out that.
As each pixel is hard coded, the script is very long.
Hope this help.
For Perlmonks HD space consideration I link this out:
Priority 1, Priority 2, Priority 3
Priority 1, Priority 0, Priority -1
Urgent, important, favour
Data loss, bug, enhancement
Out of scope, out of budget, out of line
Family, friends, work
Impossible, inconceivable, implemented
Results (276 votes),