dir wrote:
How can I fix the blue tint af the wall to make the wall white using photoshop?
Ik hope you understand my question. thx
This is called a color cast, and there are a number of ways of getting rid of it. One easy way is in Curves. Click on the gray eyedropper button, then click on the wall. Voila – the blues are gone, or mostly gone. Tweak the endpoint of the blue curve to make it straighter and you’ll be even closer. This technique works well if you have blue shadows, but the rest of the image is warmer in color, because you can get the blue out of the shadows only, and leave the rest of the image alone.
This works even better in Lab mode, but with a slightly different procedure. Convert to Lab, and control click on the wall. This creates a control point near the middle of the a and b curves. Select each of these points, and type in a zero for the righthand value, and your blue color cast will be removed, in some situations more cleanly than is possible in RGB mode. —
Mike Russell
www.curvemeister.com
www.geigy.2y.net