read videos in Matlab

조회 수: 4 (최근 30일)
Abdussalam Elhanashi
Abdussalam Elhanashi 2019년 11월 2일
편집: Abdussalam Elhanashi 2019년 11월 5일
Hi Guys
I wantt help fpr following code instade of reading the frames of videos i want to read video as normal playing
load('Detector.mat');
vidReader = VideoReader('004.avi');
vidPlayer = vision.DeployableVideoPlayer;
i = 1;
results = struct('Boxes',[],'Scores',[]);
while(hasFrame(vidReader))
I = readFrame(vidReader);
step(vidPlayer,I);
i = i+1;

채택된 답변

Subhadeep Koley
Subhadeep Koley 2019년 11월 5일
Hi, your code is almost correct only you have add some pause() between every frame otherwise you won’t be able to see all the frames. The pause time should be ideally 1/FrameRate for viewing the video in its original speed. Refer to the code below.
vidReader = VideoReader('rhinos.avi'); % Read your video here
vidPlayer = vision.DeployableVideoPlayer;
while(hasFrame(vidReader))
I = readFrame(vidReader);
step(vidPlayer,I);
pause((1/vidReader.FrameRate)); % pause of value (1/FrameRate)
end
Or else if you only want to play the video you can use the function implay().
implay('rhinos.avi'); % Read your video here
And hit the ‘Play’ button.
Hope this helps!
  댓글 수: 3
Subhadeep Koley
Subhadeep Koley 2019년 11월 5일
In your code, the variable vidReader.FrameRate contains the frame rate of the video read by VideoReader.
Abdussalam Elhanashi
Abdussalam Elhanashi 2019년 11월 5일
편집: Abdussalam Elhanashi 2019년 11월 5일
Hi Subhadeep Koley thanks for your comment how can i calculate the frame rate per second for object detection when i play the video because when i got the deployable video player it does not show f / s

댓글을 달려면 로그인하십시오.

추가 답변 (0개)

카테고리

Help CenterFile Exchange에서 Computer Vision with Simulink에 대해 자세히 알아보기

Community Treasure Hunt

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

Start Hunting!

Translated by