MATLAB: How to read video frames starting at an arbitrary frame number

image processingImage Processing Toolboxlarge video filesread arbitrary framevideo processingvideoreader

I am using MatLab 2014b 64 bit Windows. I have a .mov file with 13170 frames of 1080x 1920 pixels- way too big to read in all at once so I want to read the file in in chunks of 1000 frames each, but cannot find a way to start reading at a specified frame number. Are there parameters to set in VideoReader that does this?

Best Answer

You have to use read() and pass it the frame number.

% Extract the frame from the movie structure.
thisFrame = read(videoObject, frameNumber);

See my attached demo.

Related Solutions

MATLAB: Arbitrary Gamma random numbers

If you have an upper bound on the numbers to be generated, then you are not working with a gamma distribution. By definition, gamma distributions are infinite distributions on the upper end. They are normally 0 on the lower bound, but one could add a constant to the distribution.

If you have upper and lower bounds, you could consider using a beta distribution.

MATLAB: Arbitrary sized function evaluation

xt = num2cell(x);
f(xt{:});

Best Answer

Related Solutions

MATLAB: Arbitrary Gamma random numbers

MATLAB: Arbitrary sized function evaluation

Related Question