Using the Impressionist Medium
Use the Impressionist medium to brush on colours from a reference clip. The brush opacity determines how much colour is taken from the reference clip. When the opacity value is set to 100%, all the colour is taken from the reference image. At 50%, the colour applied is a 50/50 blend of the reference colour and the result image.
To use the Impressionist medium:
Click Custom and then select Impressionist from the Custom Media box.
Click Canvas.
Set the brush opacity.
Select a reference image from the Reference box.
Paint on the image.