dividing video into scenes

조회 수: 5(최근 30일)
Majid Al-Sirafi
Majid Al-Sirafi 2018년 7월 7일
댓글: Majid Al-Sirafi 2018년 7월 9일
hi everyone the attached file is matlab code for dividing AVI movie into scenes. unfortunately, the accuracy of this
program is low. So, is there any alternative matlab program?
Regards
Majid

답변(4개)

Image Analyst
Image Analyst 2018년 7월 7일
It's hard to define what a scene is. If the camera smoothly turns around 180 degrees is that a new scene?
See my attached example where I take the mean of all frames. You could examine the means and try to find abrupt changes in the means which could indicate a change in scene. Though it could also be the same scene where someone just put their hand over the lens for a short time.
  댓글 수: 7
Majid Al-Sirafi
Majid Al-Sirafi 2018년 7월 9일
thank you very much dear Image analyst for this valuable information about scene detection..
Can I contact with you about scene subject later? Actually, currently I'm working on Project related to Watermarking in Video media depending on the scene detection. your example may help me.
regard,
Majid

댓글을 달려면 로그인하십시오.


Majid Al-Sirafi
Majid Al-Sirafi 2018년 7월 7일
dear image analyst do you know the value of threshold by which the changed scene is detected
  댓글 수: 1
Image Analyst
Image Analyst 2018년 7월 8일
No. I think you should plot the difference from frame to frame as a function of frame and look at the frames where you know for a fact that the scene has changed. Those differences should be about right, and all the other differences will probably be a lot less. So set the threshold about half way between the known scene change difference, and a typical non-changing scene difference.

댓글을 달려면 로그인하십시오.


Majid Al-Sirafi
Majid Al-Sirafi 2018년 7월 8일
so, dear mage Analyst look at the your attached example, which I modified it (line 167,168). I stored the threshold values in array. So, can we detect the scenes through these values
Note:
(ali.avi) movie file cannot be attached since it not be supported.How can I attached it to run the example
  댓글 수: 1
Image Analyst
Image Analyst 2018년 7월 8일
zip files can be attached if they are less than about 5 MB

댓글을 달려면 로그인하십시오.


Majid Al-Sirafi
Majid Al-Sirafi 2018년 7월 8일
dear image analyst, find the attached file

제품


릴리스

R2014a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by