|
Well luminance contains the green, you could try using a copy of that and in Photoshop mask off the red and blue channels to leave the green.you need fo be able to use clipped layer masking and be able to block the red and blue.
Honestly, i would just wait and shoot a green channel when you can, or build it as a bicolour (red and blue) image, with a luminance or soft light layer, and then play with the colour balance.
|