Vidikron Vision 65 Manuale Utente

Advanced Options: For more precise control over picture quality, select Advanced Options 
from the ISF menu and press ENTER. 

• Image Enhance: The Image Enhance menu gives you options for improving the quality of 

standard-definition, 480i images. (For 480p and higher-definition images, the controls in 
this menu are disabled.) Keep in mind that these controls add frequencies that are not 
present in the original signal, and may make images appear “noisy” if misused. 

• DNR: Use the 

 or 

 button to adjust the Digital Noise Reduction (DNR). DNR is useful 

for clearing up noisy images from interlaced SD sources. Adjust as desired, keeping in 
mind that reducing noise (which reduces high frequencies) may also soften the image. 

• Detail Enhance: Use the Detail Enhance control to improve the apparent horizontal 

and/or vertical resolution of the image. 

• Luma Enhance: Use the Luma Enhance control to improve the apparent brightness of 

the image. 

• Chroma Enhance: This control adds chroma (color information) to the input signal and 

can make colors appear more vibrant and saturated. 

• Black Threshold: This control compensates for incoming elevated black levels present in 

certain video signals, and ensures that blacks in the display are neither “crushed” (where 
dark grays appear black) nor excessively elevated (where blacks appear dark gray). By 
default, the projector automatically determines the best setting according to the type of 
incoming video signal: 

• 0 IRE: Used for DVD output with “enhanced black,” SECAM, most PAL standards and 

Japanese NTSC. 

• 7.5 IRE: Used for most NTSC video signals. 

For some types of video, you may want to override the setting. Generally, if black appears 
crushed when brightness = 30, choose “0 IRE.” If black appears excessively elevated, use 
“7.5 IRE.” 

• Gamma Selection: The normal gamma setting of 2.2 is correct for almost all signals and 

conditions. If excess ambient light washes out the image and it becomes difficult or 
impossible to see details in dark areas, lower the gamma setting to compensate. This will 
improve contrast while maintaining good details for blacks. Conversely, if the image is 
washed out and unnatural, with excessive detail in black areas, increase the setting. Again, 
good gamma improves contrast while maintaining good details for blacks and whites.