Gamma

 

Watch a Video Presentation

 

The Gamma correction is used to compensate for the non-linear response of the screen. The grey-level values of the image are corrected to take the screen response into account.

 

 

From the Graphic Interface

 

 

 

Grey Image

The Gamma correction value is set by comparing the 3 grey surfaces: two of these (left and right) are composed of a mix of black and white lines, the other (center) is a mid-level grey. The visual stimuli of all 3 surfaces should be the same.

 

Gamma slider

This slider is used to select the Gamma correction value. Adjust the slider so that the 3 grey surfaces have the same intensity.

 

 

From the Display Area

 

There is no Display Area interaction specific to this tool.

 

 

From the Keyboard

 

There is no keyboard interface specific to this tool.

 

 

From the Command Line

 

A list of the commands available for this tool can be found in the "SliceO_Tool\2D Gamma.dll" section of Appendix B.