No, the number of pixels in the convex hull will be greater than or equal to the number of pixels in the object. Hence 1.0 is the upper bound. When using flag values, you usually want values outside the normal range, or at the edge of it at least!

Yes, rightly pointed out.

...

Juan are you taking this issue up?

I can look at it, but I have a busy few weeks ahead... We'll see which of us finishes their current agenda first! =)

Sounds good! :) Chintak