How can I segment a video to frames?

Hello,

i have a problem with segmentation of the video...below is a part of the code for segment a video to each segment and each segment to frames:

startIRFrame = floor(usage_history(i,1) * fps);

        if i<numberOfPhotos+1
            endIRFrame = floor(usage_history(i+1,1) * fps);
        else
            endIRFrame = FileInformation.NumberOfFrames;
        end

        indexvideo = [startIRFrame:endIRFrame]; %from 1. to last frame
        mov = aviread(filename,indexvideo);

but there is an error about an "aviread" function:

"??? Error using ==> aviread at 84
Unable to locate decompressor to decompress video stream."

Can anyone explain what is the issue here and how to solve this?

Thanks,

Luka

Answer 1

[Image Analyst]

See this thread for solutions: http://www.mathworks.com/matlabcentral/answers/25557-mmread-and-aviread-don-t-work

Answer 2

[Walter Roberson]

Are you using a 64 bit version of MATLAB on MS Windows? And was the AVI created with Indeo5 ? If so, then there is no way to obtain the decompressor for it (the company that owns the rights has indicated that they will not be creating a 64 bit version of Indeo5.)

In the situation, either create the file with a different codec, or use the 32 bit version of MATLAB to read it (after installing the codec.)

[LukaW]

Thanks for the answer!

I'm using 32-bit version (R2010a). The codec used in compression is DVSD. I managed to solve the problem by import the video in VideoDub and then extract it not using any kind of compression, but i'm afraid this is only a part time solution, because it is taking a lot of time and space (enormous files - >5Gb)...