getframe has extra row and column

I am trying to build an avi movie that is the exact magnification and quality of the original frames. I am using the following code, but M has frames that are 129x129, it is supposed to be 128x128. There is an extra row and column filled with the value 240. I have to manually "delete" the extra row and column using the block of code clearly self explanatory afterwards assigning only the 128x128 portion. What causes the extra row and column in M?:

for   j=1:L1+L2
imshow(data3(:,:,j),v,'InitialMagnification',100)
colormap(gray)
M(j) = getframe;
end

for p=1:length(M)
    all_frame(p).cdata(1:128,1:128,1:3)=M(p).cdata(1:128,1:128,1:3);
    all_frame(p).colormap=M(p).colormap;
end

myVideo = VideoWriter('movie.avi','Uncompressed AVI');
open(myVideo);
writeVideo(myVideo, all_frame);
close(myVideo);

end

[Doug Hull]

What makes you believe getframe is "supposed to be 128x128"? I see nothing in the code that tells me that M should be any specific size.

[Rafael J.]

data3 is 128x128x(L1+L2) so imshow(data3(:,:,j),v,'InitialMagnification',100) results in a 128x128 image, however after I do M(j)=getframe; the frame is 129x129, so somewhere it is adding an extra horizontal and vertical line.

[Adrin]

Hello,

Did you find any solution for this problem ?

Thank you in advance,

[Rafael J.]

Hi Adrin,

Delayed response, but no I never found the solution to the problem.