reading and writing movie files of of . y4m extension

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Majid Al-Sirafi 2015-12-2

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https://ww2.mathworks.cn/matlabcentral/answers/258503-reading-and-writing-movie-files-of-of-y4m-extension

评论： Walter Roberson 2017-4-10

采纳的回答： Walter Roberson

Hi everyone I have two questions

1-How to read and write movie files (of . y4m extension) with matlab

2-I want simple movies (.avi extension) with little frames with size(256X256) or size(512X512)

Regards

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Walter Roberson 2015-12-2

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https://ww2.mathworks.cn/matlabcentral/answers/258503-reading-and-writing-movie-files-of-of-y4m-extension#answer_201899

Reading y4m: see http://www.mathworks.com/matlabcentral/fileexchange/50690-yuv4mpeg-reader

For writing y4m files I do not see code available (but I do see it listed as an Extra Credit project at a couple of universities.)

For writing .avi see VideoWriter

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sendja450 2017-4-10

I'm using the function you mentioned in your answer, it worked for me. Now I want to divide each frame into 64x64 block and build an histogram for each block created. Could you help me on that ?

Walter Roberson 2017-4-10

mat2cell() to break into blocks, and then histogram each. Or, alternately, you might be able to use blockproc()

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FPGA, ASIC, and SoC Development Vision HDL Toolbox Video Formats and Interfaces

Image Processing and Computer Vision Vision HDL Toolbox Video Formats and Interfaces

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