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matlab support video?

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alpacinoliu

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hi!

i want to use matlab to construct the simulation enviroment on video to verify my algorithm. my idea is right? how i do?

thank you in advance!
 

Dear alpacinoliu,
I think u must elaborate your problem in detail. Which algortihm you want to test. Whether u want to make a full video encoder in Matlab or any other video system. Which System????
Matlab is good for testing.
And also if you want to test any particular part of video encoder for example motion estimator then you can do it very easily in Matlab. But if you can explain me about your algorithm and requirements then i can help you in details.
I have tested my DCT and Motion Estimator in the MATLAB 6.5

Take care,
Sincerely,
 
hi swahlah
thanks for your reply!
I have already convert an interlaced display format(TV signal: NTSC and PALB) into an noninterlaced display format. NOW I need to add a flicker filter to improve the image ,so I hope to evaluate the parameters of flicker filter by matlab.

thank you again
 

Dear alpacinoliu,
It's nice to test the flicker filter on the matlab. You can use the matlab to test the coefficients of filter. If you have made the display format conversion scheme the you have to integrate the filter with it. I will recommend to test the filter in a separate file and then after successful testing of the filter you then proceed with integration of the filter in the system.
Now if you want to test the filter then you should first write the display format converted data in a file and then read it in the filter test routine............

It's also interesting for me to know the details of the flicker filter....

Take care,
Sincerely,
 
hi swahlah

thanks for your advices

can you tell me which facilities of matlab can be used to my work. The matlab support static simulation or dynamic simulation!

a flicker filter is only a lowpass filter, which be used to cancel flickering phenomena between lines and lines

best regards
 

Dear alpacinoliu
I would recommend you to use the image processing tool box. There you can get the low pass filter and you just have to feed the coefficients. SIMULINK is the easiest way to do this and it will also show u the block diagram of you whole system.
I would deeply recommend you to see the SIMULINK and specifically the image processing toold box. The testing of low pass filter is quite easy and you have to feed your parameters in the boxes available e.g. Cutoff frequency and taps values.
Now how to join this filter purely depends upon your system design i.e. flow of data from one block to the other one.

Sincerely,
 
convert your video into avi, then use aviread to import the video, as far as I am aware that's the only way to import video unless you want to write an mfile specifically for your video which I don't think you want to do (takes a bit of time)
 

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