getframe has extra row and column

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Rafael J. 2012-10-24

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/51789-getframe-has-extra-row-and-column

评论： Rafael J. 2017-2-15

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