how to compress a video?

how to compress a video? i converted the video to frames. My next procedure is to reduce the frames and then to compress it. How to achieve those?

[Merged from duplicate]

my problem with video compression. assume we have 100 images, how can we compress and regenerate video from those images using matlab code.

your ideas will help me so much in my research.

[Sivakumaran Chandrasekaran]

hi walter. can you clarify me this doubt?

[Walter Roberson]

Are you trying to write the video compression code yourself, or are you trying to use one of the routines that convert frames to a video file, and which have compression built in?

[Sivakumaran Chandrasekaran]

I am trying to use one of the routines that convert frames to a video file, and which have compression built in..

[shashi]

Hi ..... I need a solution on how to compress the Video+ noise -> reconstructing Video -> Video Recovery as Original ....

Answer 1

[Youssef Khmou]

hi,

If you already use "avifile" , then look at its properties :

On Windows: 'Indeo3''Indeo5''Cinepak''MSVC''RLE''None'

[Sivakumaran Chandrasekaran]

i checked those properties in MATLAB help. can you help me for the syntax of it

[Youssef Khmou]

Suppose you want create an avifile with 'Cinepak' compression codec :

 >>file01=avifile('TEST.avi','Compression','CinePak')

The codec choosen must be installed if already not ,

 >>get(file01,'Compression');

If CinePak does not work try other available options :

 >>file01=set(file01,'Compression','Indeo3')
 %.......continue your code here

[Sivakumaran Chandrasekaran]

your code works perfectly.. how to justify our answer that the input video has been compressed?

[Sivakumaran Chandrasekaran]

I used compression. now all videos memory turned as 0kb.. (zero kb). How to solve this?

[Walter Roberson]

Did you add any frames to the avifile ? http://www.mathworks.com/help/matlab/ref/avifile.addframe.html

[Youssef Khmou]

i do not understand how that 0kb happend, but for the first question , when you finish adding frames just type " file01" as name of avifile , i am sure there is a parameter that will indicate the ratio or % of compression, you will find it in " Automatically updated parameters:" section .

Answer 2

[malavika mohan]

i want coding in video compression any one know plz send coding

[Sivakumaran Chandrasekaran]

check in file exchange