Page 83 - luminar 2018 - user manual pc v 2_3.pages

Utility

These filters are designed for making functional changes to an image. They are often useful for
adjusting the lighting in an image, or tone.

Adjustable Gradient

The Adjustable Gradient filter allows you to selectively adjust exposure, contrast, vibrance and
warmth for 2 different parts of the image. You can adjust the mask orientation for selective
adjustments. This effect is very well-suited for adjusting the sky and ground regions in a photo.

• Exposure – Adjusts the luminance of the image. Moving a slider to the left results in a
darker image (reduction of exposure value). Moving this slider to the right results in a
brighter image (increase of exposure value). You can adjust the relative exposure for both

the top and bottom of the image independently to refine an image.
• Contrast – Separate contrast controls allow you to modify the amount of contrast at the top

and bottom of the image. Contrast is the difference in luminance or color that makes an
object in an image distinguishable from another. Practically speaking, contrast is determined
by the difference in the color and brightness of an object in relation to other objects within
the same field of view.

• Vibrance. This slider is a "Smart Saturation” control. In general, its effect is similar to
Saturation with the difference that it increases less vibrant colors stronger and has a weaker

effect on more vibrant colors. This allows you to get more realistic and less saturated colors
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