Diamond Multimedia 7500 User Manual

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ATI Overlay Tab
Brightness
Use this slider to adjust the brightness of the video 
image.
Contrast
Use this slider to adjust the contrast in the video image.
Saturation
Use this slider to adjust the vividness of the color. 
Sliding it all the way to the left removes all color and 
produces a black and white picture.
Hue
Use this slider to adjust the pureness or tint of the red, 
green and blue components of the color.
Gamma
Use this slider to adjust the overall intensity of the video 
image.
Defaults 
button
This allows you to reset the Overlay settings to default 
values.