how to change color space of any video

how to change color space of any video, e.g video in rgb color space is converting into hsv or gray?

 Accepted Answer

vidObj = VideoReader('C:\Users\Public\Videos\Sample Videos\Wildlife.wmv'); % video file
%% Read the video frame by frame
numFrames = 0;
iwant = cell([],1) ;
while hasFrame(vidObj)
F = readFrame(vidObj);
numFrames = numFrames + 1;
imagesc(F)
drawnow
iwant{numFrames} = F ;
end
%% Write to video
v = VideoWriter('myFile','Archival');
v.VideoCompressionMethod
open(v)
for i = 1:numFrames
writeVideo(v,rgb2gray(iwant{i}))
end
close(v)

3 Comments

thanks for your answering, but tell me one thing if you know that the resulted video as a execution of above code is in mj2 extension, if we want to get in avi extension, at which place we makes changes for it. again thanks for sharing above code it is working well.
Read about videowriter. You may use some thing like below:
v = VideoWriter('newfile.avi','Motion JPEG AVI');
done its working

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Asked:

on 24 Apr 2019

Commented:

on 24 Apr 2019

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