can anyone help in finding the adjacent frame differences?

I have already extracted frames from a video. Now i have to find the difference between the adjacent frames and compare that difference value to a threshold value. Those having greater difference values have to be stored differently and finally the new video has to be formed from these separated frames. It would be really helpful if anyone can help. Thank you.

[Guillaume]

How do you define a scalar difference between two images? The difference has to be scalar if it's to be compared to a (scalar) threshold.

[Nidhi Kumari]

Actually i am following a paper on video summarization and this method is mentioned in it. I am also confused how to progress further after getting the frames from the video. It is mentioned that we have to use Frame Difference Method on frames and compare it with the threshold value.

[Guillaume]

If the paper is any good, it should explain how that Frame Difference Method actually work.

[Nidhi Kumari]

There is no explanation. It only mentions the method.

[Guillaume]

With no reference? Not a very good paper then. With no details, I'm not sure how you could implement the method.

[Nidhi Kumari]

I thought i would be able to find it on google but its of no use.

[Rik]

You might try contacting the original author(s).