How to convert the grayscale image into rgb image ????

How to convert the grayscale image into rgb image ????

[KSSV]

You should be having colormap for this. You need to have a color data of the concerned image.

Answer 1

[KSSV]

https://in.mathworks.com/matlabcentral/answers/67137-convert-gray-image-back-to-rgb

Answer 2

[Walter Roberson]

RGB_Image = Grayscale_Image(:,:,[1 1 1]);

which is the same as

RGB_Image = repmat(Grayscale_Image, 1, 1, 3);