How to convert image to frame

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Shalini Verma
Shalini Verma el 1 de Mzo. de 2017
Comentada: Shalini Verma el 4 de Mzo. de 2017
I have made the programe for locating centroid point on an object in a video. I have converted the video into image frames and located the point successfully but unable to convert the image again to video frame so as to move the point in the video. An error is coming
figure(5);
imshow(im,[]);colormap(gray);
figure(6)
M=im2frame(im);
Error using im2frame
double-precision indexed CData values must be legal colormap indices: 1.0 <= value <= length(colormap)
Error in a1 (line 70) M=im2frame(im);

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Image Analyst
Image Analyst el 1 de Mzo. de 2017
Evidently your im is double. It must be integer, like uint8 or uint16.

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