Error using im2frame

Can anyone help with this error, i am trying to create a video with thos lines of code :

frame=im2frame(gcf);

writeVideo(writerObj,frame);

But i got the following error

Error using im2frame

Can only make movie frames from image matrices of type double or uint8

Error in skeleton (line 65)

frame=im2frame(gcf);

Answer 1

[MJFcoNaN]

Hello,

getframe is the suitable fucntion there:

frame = getframe(gcf);