GIMP tools - BDA

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Moving Brightness and Contract sliders to the right increases brightness and contrast, to
the left – decreases them. Adjustments made by this tool do not highlight light,
undertone or dark areas.
If you are not satisfied with the quality you get, use Levels and Curves.
TASK. Open image pav_1.jpg and using the ColorsBrightness-Contrast command
adjust it by setting the brightness value at 127 and (-127) and the contrast value at 127
and (-127).
1. Open pav_1.jpg using the command FileOpen .
2. Select the tool through ColorsBrightness – Contrast or by clicking on the tool
icon and the opened image. The Brightness-Contrast dialog box opens:
3. Using the Brightness slider set the value at 127, then at -127.
a) Brightness = 0 b) Brightness = 127 c) Brightness = -127
4. Using the Contrast slider set the value at 127, then at -127.