How to deal with color image ?

How to deal with color image to encode in matlab, I know the method that seprate image into three images grren, red, and blue .

is there any method to deal with color image ?

[Rik]

What do you mean by dealing with? What kind of operation do you want to do?

[Noor Abbas]

I have did my code with gray scale image and need to use color image then do comparison between them

[Mahesh Taparia]

Hi

Can you elaborate more what you want to do with color image and gray scale image? What kind of comparision you want do?