how to change color space of any video

2019 4 24
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更新时间：2019 4 24
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how to change color space of any video, e.g video in rgb color space is converting into hsv or gray?

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KSSV
KSSV 2019-4-24

0 个投票

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)

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Awais Khan
Awais Khan 2019-4-24
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.
KSSV
KSSV 2019-4-24
Read about videowriter. You may use some thing like below:
v = VideoWriter('newfile.avi','Motion JPEG AVI');

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