Did you
know...?
Control Luminance with a
Black & White Adjustment Layer
Here is a little Photoshop trick for you to try out –
it involves a Black & White Adjustment Layer.
red. We can make the reds darker, or we can make
the reds brighter. We can do the same thing with the
blues, and all the other colors controlled by these
sliders.
Let’s start with an image, and add a B&W Adjustment
Layer.
Of course, it is going to turn everything black & white.
Another way we can use this technique is by using
the Mask. By clicking on that layer mask thumbnail,
and hold CTRL+Backspace (CMD+Backspace) to fill
with the background color which is black and hides
the effect. Then with a brush continue to paint with
white to bring back the effect. Maybe I want more
detail in the sky, so I paint with white on those clouds.
Since it is an adjustment layer, you can come back in
and make further adjustments.
This is how you can control the luminance values of
But, if we change the Blend Mode to Luminosity, it your image by using the Black & White Adjustment
brings the color back, so we can use these sliders to Layer.
control the luminosity of specific colors. For example
NM CliQ Magazine | May 2016
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