How can I use the ColorChannels function of VideoWriter in VideoReader?

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Alber
Alber 2020-3-20
评论： Alber 2020-3-24
I am currently making a code in which an input video comes in and I need to check the number of color channels it has. The function I need is in videoWriter but I need to use it in videoReader because I am not going to create a new video.
Thank you very much in advance.

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Sindhu Karri
Sindhu Karri 2020-3-23
Hii,
By using whos func youcan get the info of number of color channels
Below is an example code for it
v = VideoReader('xylophone.mp4');
frame=read(v,1);
whos frame;
Name Size Bytes Class Attributes
frame 240x320x3 230400 uint8
Where Size(2400x320x3) 3-gives the number of color channels
3-RGB
1-Grey
Refer to below link
https://www.mathworks.com/help/matlab/ref/whos.html

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