[Adam Roche]

Thanks guys for replying so quickly. I hadn’t thought of using the matte in a precomp. I figured it out shortly after posting, and instead of emitting from the black and white matte, I emitted from the original footage allowing me to get the correct colours, and found under the Visibility drop down menu there is an Obscuration layer which then you can select the matte layer and it will not emit from the alpha areas in the matte.

Seems crazy there isnt an easy way to emit from a layer and get the rgb value from another layer?

Thanks again guys! I really appreciate the fast response