I want to read every second frame from video

4 次查看（过去 30 天）
Eliska Paulikova
Eliska Paulikova 2022-10-22
编辑： Image Analyst 2022-10-22
Hello, I have video which has 15 GB, so it takes to long to read it, I also need to add the segmentation to frames. So I decided to apply it only for every second or third frame. How I can do it?
Thank you for your answer.

请先登录，再回答此问题。

采纳的回答

Image Analyst
Image Analyst 2022-10-22
编辑：Image Analyst 2022-10-22
Yes, in the read() function just pass in the frame number you want to read.
numberOfFrames = videoReaderObject.NumFrames;
framesToRead = 1: 2 : numberOfFrames;
for k = 1 : length(framesToRead)
% Extract the frame from the movie structure.
thisFrame = read(videoReaderObject, framesToRead(k));
end
See attached demos.

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Image Segmentation 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by