[tilbrook@rbe.ne (Justin Tilbrook)]

Originally Posted by David Fitz-Henr

As it is a mosaic, I'm not sure whether the green noise is an actual gradient across the three frames or whether it is a colour cast in one or more of the frames. Either way, GradientXterminator may be able to fix this.
If you don't have this and it is a colour cast that you want to remove from the stitched image (instead of colour balancing the individual frame and restitching it), then you could possibly:
- duplicate the layer and colour balance for the left hand side (ie. remove the green cast). This will make the RHS too magenta.
- Click Layer > Layer Mask > Hide All
- Use a soft brush with a largish diameter to paint the image on the LHS (make sure that the mask has the focus though or you will be painting the image itself). The foreground colour should be white and set the opacity & flow at say 20% to allow gradual control. Each brush stroke will reveal more of the green-balanced image to replace the green cast image.
- The green cast seems consistent across the LHS until it quickly (but not abruptly) fades out so you need to manually feather your strokes here.

If it is a gradient then there is a way to use the gradient tool in PS to subtract an equal gradient, but I don't know the steps off-hand.

Thanks David!

I'll give it a go.

Cheers,

Justin.