
 I posted this originally in the tech forum, so anyone who is willing and able please delete the other thread.
I have a simple little painting that I did a while ago that I want to scan onto a computer and manipulate. 
My question is, how difficult would these manipulations be using photoshop or similar software? 
Here's the situation, 
The painting contains these colors: 
-a mix of dark blues 
-a light purple 
-a light pink 
I want to 
-change the blues to shades of gray 
-change the purple to a dark gray 
-turn the pink to a pale yellow 
Would this be easy, difficult, possible?