Operation on Video Files

Hello I have implemented the security algorithm from Grayscale to RGB Images. Now I want to implement the same for video files. (1)How can I get individual frames for the video file? (2)Also can I apply the algorithm for single frame same as for images.How do I apply (3)how to convert the frames into video file back?

Thanks

Answer 1

[Walter Roberson]

See the VideoReader and VideoWriter classes. If you have an older version of MATLAB, see mmreader()

Answer 2

[Image Analyst]

See my sample code: http://www.mathworks.com/matlabcentral/answers/30847-how-save-frames-that-exit-from-video-in-a-specific-folder

It extracts frame and writes them to disk, then it shows how to read those frames back in and create a movie from them.