thanks Pavlin. its working!
now i have another problem, those sprites that i have embossed are not interactive. they can't collide with other sprites. i think it has been converted or treated as an image.
Puneet:
are u making a program for a Nokia phone? if yes, u can use DirectUtils.createImage(width, height, ARGBcolor). this will make the whites transparent.
if u want ur image to fit the whole canvas, i would suggest that u make or have a graphic designer make an image that has ur canvas dimensions. i won't recommend that u resize (through code) ur image for it will be blurred. the pixels usually "explode".
hope this helps.