Panasonic 150P - Manual (Page 107)

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107
Tool Menu
NOTE
Apply
Adjustment - Gamma Curve
Adjustment in the Tool menu becomes valid only if <Halftone> have
been selected in <Image Type> on the main window.
Display a dialog box for adjusting the gamma (color strength characteristics) of an image.
(valid only when halftone is selected)
Adjust the gamma curve by dragging the slide bar or entering a value.
Moving the slide bar in the + direction reduces the difference between the highlight (light portion) and
halftone. Moving the slide bar in the - direction reduces the difference between the shadow (dark portion)
and halftone. In either case, the halftone becomes less prominent.
Click the button to apply the changes.