is it possible to change the shape of the image

[sankar ganesh]

hi
i copied a specified region from an image that is drawn in the canvas screen and append that copied region in another imagebut what i want is i want that copied image to be in oval shape.I used this method to copy the particular region frm the image
Image ima=Image.createImage(originalimage,x,y,w,h,Sprite_TRANS_NONE);
x-xpos
y-ypos
w-width of the arc
h-height of the arc
can anyone tell me the soln if possible
thanx a lot in advance