two files with different size

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hi every one the attached matlab code is used for create a new file from input file. unfrtunatelly, the size of the
output file is different from the input. so, how to make them with the same size

Accepted Answer

Walter Roberson
Walter Roberson on 13 Feb 2017
Enhanced code is attached. I upgraded it to use VideoReader and VideoWriter as the routines you used are no longer available in MATLAB.
This turns on Motion JPEG AVI compression. If you want uncompressed changed to 'Uncompressed AVI' in the line marked.
Uncompressed AVI is expected to be larger than the original AVI as the original is likely compressed. Motion JPEG might be smaller than the original AVI: with one or more channels zeroed out, there is less change in the data and that means it can be compressed more efficiently.
Check out the code... I made some improvements.
Majid Al-Sirafi
Majid Al-Sirafi on 13 Feb 2017
thank you dear Walter Roberson, please keep us in contact. I need your supporting

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More Answers (1)

Jan on 12 Feb 2017
If the original file is compressed, it is the expected result, that saving it as uncompressed AVI file changes the file size. Could you provide more details about what you get and what you want?
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Majid Al-Sirafi
Majid Al-Sirafi on 13 Feb 2017
actually, I want to produce file from another. for example, I have file with size 359 MB but after running the code, the size of the output file is 1.64 MB. pleaes, i need your e-mail in order to send the input and output files to you

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