Getting rid of an extreme colour cast can be quite a daunting task, but with a couple of easy steps you can actually fix your photos in no time. The first step is ensuring your file is in RGB (Image>Mode>RGB Color). The way in which we’re going to adjust your image will only work RGB. Next, in your select Image>Adjustments>Match Color, turn on the Neutralize checkbox and then play with the Fade setting to control the strength of the color correction that you will be applying. Unfortunately like all good tips, this won’t work with every image, but it will allow you to save a fair amount of photos that were destined to be tossed.

