How to extract I-frames from video?
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Actually, I want to encrypt a video. So, i need to extract the I-frames and then encrypt them. I am new to matlab. So , plz give me detailed explanation.
2 Comments
Jan
on 22 Jul 2013
This question is to general to be answered efficiently. Even if you are a beginner, it is not the nature of the forum, that others solve your problems. So please post what you have done so far and ask specific questions.
Answers (3)
Jan
on 23 Jul 2013
The intermediate frames are reconstructed by using the hierarchy of I, B and P frames. As soon as you want to extract a frame as full image, the information about the frame type is lost. This is the nature of obtaining single frames from the encoded movie stream.
I think it is more efficient, when you find out and explain, what you exactly want to achieve. Specific questions are more likely answered in a forum.
Deven P
on 2 May 2014
yes even i need to extract I-frames from the video to perform chaotic encryption on the I-frame and thus the real-time digital video.
any method to extract I,P,B frames from the video anyone knows of? how can we come to know after extracting the frame that the frame is an I-frame or P frame or B frame?
thanks in advance.
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