Index exceeds matrix dimensions.

 img=('frame1.jpg');
 nayaRes=img;
 R=img(:,:,1);
 G=img(:,:,2);
Error Masg:Index exceeds matrix dimensions.

[madhan ravi]

Paste full code with jpg file

[Shahid Mandokhail]

Its my mistake ....

if I have to seperate Red, Green and Blue chenals of image .....then i have to write like

img=imread('frame.jpg');

Answer 1

[Bruno Luong]

After read the file type

>> size(img)

If the third dimension is not 3, it's not RGB image