error wen separating the channel

I am running a code for stegnography,the problem is that it works for cameraman
and gray scale images,if any RGB is converted to grayscale,but if i separate channel and run
R =rgb(:,:,1),the program is not running,getting error
can u plz assist why i get error

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此问题已关闭。

提问:

2013-3-9

关闭:

2021-8-20

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