Quote:
Originally Posted by
rlb 
HDMI has nothing to do with the color space problem. Color space information is not passed during the "hand shake". SD and HD have different color spaces (i.e., don't know proper term but it is how they are encoded). When the set receives the HD signal, it presumes that the colors were encoded accordingly. If not, when it "decodes" a signal with SD color encoding, the colors are not correct. It is the player's "job" to output the correct color space for the applicable resolution. My components were doing that.
It is the TVs job to recognize a HD/SD resolution and decode the color accordingly. Very few TVs have a "switch" that allows the user to specify the color space.
Even if it isn't color space issues, the Reon is changing the saturation level of input color and specifically decreasing the intensity of the green by 20%. As I've said, I made the same measurement when output by a PS3 or XA2 into my SXRD.
I've been using the Reon (have it turned on because of standard definition stations output from my HR20) for several months. The problem wasn't readily apparent until I did the specific calibrations.
I'm hoping someone else will do the measurements rather than just "doubting" the results. Maybe I have a unique problem; but the odds are against it.
I'm not doubting your results, just your cause. I would not expect the Onkyo or any scaler to do color conversions. I see nothing mentioning this capability on the Silicon Optix web site. I see Lumagen has this capability but it is selectable from a menu as I believe it should be on displays.
Here is another source saying basically this point:
and specifically decreasing the intensity of the green by 20%. As I've said, I made the same measurement when output by a PS3 or XA2 into my SXRD.
I've been using the Reon (have it turned on because of standard definition stations output from my HR20) for several months. The problem wasn't readily apparent until I did the specific calibrations.
I'm hoping someone else will do the measurements rather than just "doubting" the results. Maybe I have a unique problem; but the odds are against it.[/quote]
I'm not doubting your results, just your cause. I would not expect the Onkyo or any scaler to do color conversions. I see nothing mentioning this capability on the Silicon Optix web site. I see Lumagen has this capability but it is selectable from a menu as I believe it should be on displays.
Here is another source discussing this that seems to cover the issues I had with my LG.
It also says displays must have selectable color space switches.
http://www.hdtvmagazine.com/forum/viewtopic.php?t=5317
If the Reon had the capability it too would require a manual selection for this I would think.
Especially considering you can use HDMI in RGB modes as well as difference modes.
And here's another option to fix this:
"(Update, 1/23/2007) As I mentioned last week, OPPO has been working on a firmware update to allow control of the colorspace setting. That work has led to a new beta firmware (not yet official). You can find the firmware on the 981HD's support page. This beta should only be necessary if you are encountering an uncorrectable "green push" (green tint to all video), as the problem may be due to the display improperly using the BT.601 color conversion matrix (intended for SD video, YCbCr sources) instead of the BT.709 color conversion matrix that should be used with HD sources. Manually selecting "RGB" will instruct the 981HD to apply BT.601 even at HD resolutions. If you are having no problems and elect to install this firmware, you should select "Auto" from the options of Auto, RGB, and YCbCr 4:4:4 on the General Setup Page of the setup menu."
The above from:
http://www.prillaman.net/oppo981_review.html
So it looks like a very common problem. All I'm trying to say is the external scalers with more features have switches for this color space but I don't see any for scalers in receivers. The problem seems solvable at any of the three devices from source to display to the Onlyo.
If I had the test disk handy I'd try this test for you, and various modes of HDMI too that I can select on bluray and on my projector.
I have watched with the scaling done in all three devices and have seen no changes in the color. Just in the scaling quality, for SD DVD's.