Azzera filtri
Azzera filtri

video frame saving in running loop

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Muhammad
Muhammad il 7 Gen 2023
Commentato: Image Analyst il 8 Gen 2023
actualy i am readig a video and taking its frame one after another in loop, what i wanna know is that how i can use each frame inn imread command as that read from specific path
vidObj = VideoReader('ch.mp4');
i=1;
while hasFrame(vidObj)
vidFrame = readFrame(vidObj);
inframe = imread('');
localcolor = [100 50 0]/255;
% convert to HSV
hsvcolor = rgb2hsv(localcolor);
hsvframe = rgb2hsv(inframe);
% substitute HS
hsvframe(:,:,1) = hsvcolor(1);
hsvframe(:,:,2) = hsvcolor(2);
% convert back to RGB
outframe = hsv2rgb(hsvframe);
imshow(outframe)
pause(1/vidObj.FrameRate);
i=i+1;
end
  1 Commento
Jan
Jan il 8 Gen 2023
There is no need to call imread, because you do not want to imprt an image file. Therefore I'd simply omit this command and work with the alreayd imported frame.

Accedi per commentare.

Risposte (1)

Image Analyst
Image Analyst il 8 Gen 2023
See attached demo. It runs through a video taking the mean R, G, and B values of the image and, optionally, writing each frame out to disk. Then it builds a new video by reading those frames on disk back in and constructing a new video from them.

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