reducing the blue color cast in white clothing
Often when working in the shade, or anywhere we need Cloudy or Shade white balance, we’ll often see a blue tint in the white clothing. I suspect this might be due to detergents being used which give a blue-ish tint to white clothing to make them appear cleaner. Or perhaps this is from UV light when we’re working in cloudy conditions or in the shade. However it might be, we will often get that blue tone in white clothing, as in this photo below …
Look at the white dress especially. There is a distinct blue tint to it.
Merely using the eye-dropped tool to click on the whites to give a neutral white, will often give us a far too warm image, as in this example below. The whites are now technically neutral, as per Photoshop .. but the skin tones are too warm.
Here is a simple quick-fix trick I use to give me white clothing that actually look more ‘white’. In the HSL tab in Photoshop ACR or in Lightroom, I pull down the blue saturation fader a bit. (The other panel shown here is just to show my basic default RAW settings for this camera. I did adjust the WB though. For me, this is a quick adjustment when adjusting a number of RAW files simultaneously.
Pulling down the Blue Saturation obviously has an effect on any blue clothing that are worn, and on blue eyes. Therefore it won’t be a viable method when we have important areas that are blue. But most often, when we have predominantly white tones, we can get away with this little trick to give us a more pure looking white, without affecting skin tones. It is really handy when editing wedding images.
Click through this link for the two images for a side-by-side comparison.
Equipment used during this photo session:
Nikon D3; Nikon 24-70mm f2.8 AF-S (B&H); Nikon SB-900 (B&H)
Lastolite EZYBOX 24×24 softbox (B&H)
Manfrotto 680B monopod (B&H);
brass stud to attach softbox to monopod (B&H)
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I edit it in the JPG file by using the quick selection tool and then adjusting the saturation.
This way you’ll won’t lose saturation in other blue area’s.
Comment by Joost — August 11, 2010 @ 5:05 am
Another trick would be to use Selective Color in Photoshop. Try the White pull down first, then Cyan and or Blue. This works great because you can also use a mask.
Comment by Rob Dunbar — August 11, 2010 @ 8:15 am
Yep. Another way is to go to “Selective Color” in photoshop, go to “Whites” and then adjust the blue slider.
Comment by Bill — August 11, 2010 @ 9:16 am
That’s a really good one Neil, thank you!
Comment by Ali — August 11, 2010 @ 9:51 am
Nik Software Viveza also makes it very easy to select the whites and warm just the white.
Comment by Bob — August 11, 2010 @ 10:25 am
Couldn’t you eyedrop the stone stairs as neutral gray?
In Lightroom, one can use the targeting icon in the HSL tab to target the white clothing. Click on the targeting icon, go to the white clothing, click-and-hold on the white clothing. While holding, move up or down on the mouse to automatically adjust the colors. The corresponding HSL sliders will move.
I also agree that Viveza makes it easier to alter color casts on specific areas.
Comment by Stephen — August 11, 2010 @ 11:30 am
Comment by Neil vN — August 11, 2010 @ 11:34 am
Thanks for the info Neil. I’ve been running into this with white wedding gowns.
Comment by Alfred — August 11, 2010 @ 3:15 pm
I just did a family portrait at the beach on a cloudy morning. I encountered the same issue while using the WB sampler in LR. If I sampled their white shirts it was too aggressive at trying to warm things up. I was manually adjusting the WB but I also like the added element of toning down the blue slider to taste.
Thanks again,
Bob
Comment by Bob — August 12, 2010 @ 10:28 am
That’s been quite helpful thanks
Comment by Edward Lui — August 14, 2010 @ 4:57 pm
I just wanted to point out that the blue you see in the white clothes is the scattered blue light from the sky. It is the ambient “glow” during the daytime that can be seen when direct sunlight is blocked out (e.g. shade). Shoot in shade on overcast day with grayish cloud bottoms and the blue will be, for the most part, non-existent.
Comment by Detrick Branston — August 19, 2010 @ 12:09 am