06-29-2017, 08:39 AM
Hi all 
I'm looking for ways to remove selective areas of red stain/cast on an image.
I can remove an overall red cast using inverted average colour but short of converting to B&W (using the undamaged red channel) and recolouring or cloning areas I can't figure out a way to do this.
A thought was using channels somehow, maybe as a mask, as the red channel has no damage, green and blue do.
Here's an image with the general red cast removed on the left and the remaining stains on the right.
![[Image: iyf5njyl.png]](http://i.imgur.com/iyf5njyl.png)
Any help appreciated!

I'm looking for ways to remove selective areas of red stain/cast on an image.
I can remove an overall red cast using inverted average colour but short of converting to B&W (using the undamaged red channel) and recolouring or cloning areas I can't figure out a way to do this.
A thought was using channels somehow, maybe as a mask, as the red channel has no damage, green and blue do.
Here's an image with the general red cast removed on the left and the remaining stains on the right.
![[Image: iyf5njyl.png]](http://i.imgur.com/iyf5njyl.png)
Any help appreciated!