How to use Photoshop’s Photo Filter to eliminate colour casts from photos
It is difficult getting the perfect white balance setting sometimes, often leading to cold-looking images, This is caused by too much blue but can be fixed with the Photo Filter command.
Found in the Image>Adjustments part of Photoshop, or the Adjustments area of Elements, the Photo Filter is very easy to use.
The process is simple – it offers you a menu of colours to overlay onto your image. These include blues and greens as well as yellows, oranges and reds. It’s just a case of selecting the colour you want from the drop-down menu and then using the Density slider to adjust how much the colour affects the final image.
The colour will be applied to the entire picture by default, so if you want to target a specific area, make a selection of it and then run the Photo Filter command. When making the selection, apply a Feather setting of around 5 pixels to avoid any harsh lines.
An image with too much blue in it, giving a cold impression
The same image with the Photo Filter applied. The blue has gone and everything is much warmer