Problem with creating video and frame

Dear Matlab Team,

I have a question regarding creating the video.

I have this, at the beginnig of my code, before the "for t=1:1000"

fig = figure('Position', [100, 100, 1924, 975]);  
axis tight manual;  

------------------------

drawnow;
frame = getframe(fig);
writeVideo(writerObj, frame);

-------------------------

But still get the error:

Error using VideoWriter/writeVideo

Frame must be 1924 by 975

Error in testfile (line 741)

writeVideo(writerObj, frame);

Thank you

Answer 1

[Walter Roberson]

The second and each following frame of video must be the same size as the first frame that is written.

Each time you draw a new plot, there is the possibility that getframe() of it might be a slightly different size, even if the figure size and axes size remains exactly the same.

In particular, the algorithm for automatically labeling axes has a little bit of slop for the position of the rightmost characters. Because of that, the captured axes width can be up to 2 pixels shorter than normal, or up to 5 pixels wider than usual.

One typical work-around is to imresize() the second and following captured frames to be the same size as the first captured frame.