ImageData:paste
Paste into ImageData from another source ImageData.
ImageData:paste( source, dx, dy, sx, sy, sw, sh )
source ImageData Source ImageData from which to copy.
dx number Destination top-left position on x-axis.
dy number Destination top-left position on y-axis.
sx number Source top-left position on x-axis.
sy number Source top-left position on y-axis.
sw number Source width.
sh number Source height.