|

樓主 |
發表於 2008-2-22 03:56:57
|
顯示全部樓層
這是從AVS Forum轉過來的
VIDEO SETTINGS
**************************************************
Under Video Output Format (HDMI), what are RGB, Y Pb/Cb Pr/Cr and Auto for?
RGB: A colorspace used by the PS3 to output video levels at adesired range. This colorspace is mostly designed for PC monitors. Thisis the desired colorspace for use in the PS3’s XMB interface and also for video games because they are encoded in sRGB.
Y Pb/Cb Pr/Cr: Another colorspace for use with displays thataccept Y Pb/Cb Pr/Cr input. If your display supports it, this is thedesired colorspace when watching DVD, Blu-rays or AVCHD videos.
Auto: Just like it sounds, it automatically selects between RGBor Y Pb/Cb Pr/Cr colorspaces depending on the source of the video.Selecting “Auto” will most likely result in the PS3 using RGB Levelsfor the XMB interface and Video Games, and Y Pb/Cb Pr/Cr for DVD andBlu-ray discs.
Which one should I choose?
That depends on your display, connection and calibration settings. Try using starting with “Auto” (see why above under “Auto” above).
I notice weird things happening with colors when selecting Y Pb/Cb Pr/Cr or Auto. What should I do?
Try forcing the PS3 to output RGB levels to see if this eliminates the problems. Your display may not accept, or may have trouble with Y Pb/Cb Pr/Cr input.
Does it matter if I'm using component cables?
TBD
So then under Display Settings, should I have RGB set to “Full” or “Limited”?
Most TVs can experience “black crush” when “Full” is selected becausethe colorspace is being mapped beyond what the TV is expecting. Startwith it set at “Limited” and calibrate your TV accordingly. Use grey-scale test pattern images if necessary during calibration.
See this discussion for a more detailed discussion (for and against)
What about Y Pb/Cb Pr/Cr Super-White? “On” or “Off”?
Y Pb/Cb Pr/Cr Super-white is used to pass Blacker-than-Black (BTB) andPeak White (WTW) levels during video playback. Setting this to “On”should benefit your display as long as your TV accepts Y Pb/Cb Pr/Crinput over HDMI. Again, try using a test pattern DVD/BD to calibrateyour display after this is turned on.
Not all displays are alike, so use common sense. If you notice adecrease in picture quality after changing any of the above settingseither try recalibrating the TV or revert back to the previous setting. |
|