Can i have rounded corners on my bitmaps created dynamicly?

Hello

ok a quick run down what i have managed to (learn) create

I read through a .xml file with a list of .jpg file names
Each .jpg is then loaded and drawn into a bitmap
Each bitmap has a .onPress control so (eventualy when i have learnt howto) a .html or .php will be called.

Each bitmap is placed across the screen at 45 degree angle in a brick wall style layout.
e.g.
.XXX XXX XXX XXX
. XXX XXX XXX
.XXX XXX XXX XXX

ok what i need now to learn is to give each bitmap rounded corners. Is this possible. It has taken me so long just to learn what i have so far!!!
Many thanks for any help
Mike :o)