ATI Technologies FIRE GL1 User's Guide download pdf (Page 30)

Gamma Correction Adjustment

: Adjust the monitor's

gamma correction for optimal brightness with the red, green

and blue slider bars.

Note:

You cannot adjust

Gamma Correction

for 256-color

modes

When these sliders are changed the gamma correction table

modifies each pixel's color value.

The brightness produced at the face of the display is

proportional to the input voltage raised to the power gamma.

This nonlinearity must be compensated to achieve correct

reproduction of the image's brightness. The effect of display

gamma is to darken the midtones relative to the dark and light

regions. The gamma correction adjustment affects the entire

screen display. The possible setting range is 0.3 - 4.0. The

default setting is 1.0.

With

Link sliders

selected, the three sliders move together as

you drag any individual slider. With the check box unchecked,

you can adjust colors individually by dragging the applicable

slider.

Click the

>1<

button - for each color - to set the gamma

correction to the default value of 1.0.

Click the

Apply

button to enable your

Adjustment

settings.

Repeat steps 2 through 5 for each monitor you want to set.

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ATI Technologies FIRE GL1 User's Guide Page 30