Optoma HD-3000 User Manual page 110

6.
The first item "Ref. mode" has five default value sets for user to fine-tune High Corning,
High Width, Low Corning, Low Width and Strength A &B. User can use "f", "g" arrow
keys to select each setting and press "Enter " to start the fine-tuning. Once user changes
value of each item, the updated values are memorized without any old value savings.
Please refer to the following description and graphics about adjusting items.
1) The vertical coordinate is the luminance offset of the selected area on the screen. A lower
luminance offset means the selected area of the screen will have smoothed brightness
in for items such as human skin or backgrounds. A higher luminance provides for limited
enhancement. This will allow the user to set and fine tune different zones (A and B). Zone A
is the primary area of enhancement while Zone B is the area for minimal or no adjustment.
2) Using "High Corning" and "Low Corning" to divide A and B Zones.
3) Using "Strength" A and B to have different levels of Edge enhancement. Value of Strength
A must be higher than Strength B.
4) Then High width and Low width fine-tune can make settings between A and B zones
smooth.
HD3000 User's Guide
Professional Video Scaler and Color Management System
Press Enter to load Ref. Mode
HD3000 User's Guide 46