all video frames are black

3 views (last 30 days)
Roaa Alnafea
Roaa Alnafea on 2 Feb 2022
I am trying this code , it work with me for som videos , but for the other one I get all frames: black
Any idea about how I can solve this ?
I try to convert it to avi but I get the same, and I couldn't attach it here because it is too large
vidObj = VideoReader('002.mp4');
s = struct('cdata',zeros(vidObj.Height,vidObj.Width,3,'uint8'),'colormap',[]);
>> vidObj.CurrentTime = 0.6;
>> k = 1;
while vidObj.CurrentTime <= 0.9
s(k).cdata = readFrame(vidObj);
k = k+1;
end
whos s
  3 Comments
Benjamin Thompson
Benjamin Thompson on 2 Feb 2022
Can you post a couple of the frames that you get from VideoReader, as a MAT file? Why do you need the 'colormap' stuff and please post the code that you use to display the frames in the structure s.

Sign in to comment.

Answers (0)

Products


Release

R2021b

Community Treasure Hunt

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

Start Hunting!