HP Envy 15-1050 User Manual page 50

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Gamma—Controls the contrast affecting the mid-level grays or midtones of an image. Adjusting
the gamma of an image allows you to change the brightness values of the middle range of gray
tones without dramatically altering the shadows and highlights. A lower gamma setting makes
grays look black, and makes dark colors even darker.
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Backlight Comp—Compensates in cases where a subject with a large amount of background light
would otherwise be obscured by blooming or silhouetting.
For more information about using the webcam, select Start > Help and Support.
40 Chapter 5 Multimedia