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New member Username: DuncanlPost Number: 3 Registered: May-06 | First - I entered the service menu for the first time and I think I may have changed something in the DNIE menu. There is an item named "Gain 1X". It is now at 16 which I think is the original. Does anyone know. I am fairly literate and comfortable tinkering with settings. Are there any settings I could play with to improve what I think is the macroblocking problem? Can DNIE be turned off in the SM? I have heard it can be but have not found instructions. Thanks |
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Silver Member Username: FyiDallas, Texas Post Number: 706 Registered: May-05 | That's close enough. You could change all values to -0- and On-Off settings to Off except for the 128 values and the sub-contrast and sub-brightness values. Leave those where they are. This would effectively disable DNIE. Using the "-" and "Pre-Ch" will change values 100 at a time for those two that are 12,000. Adjusting the Index Delay up or down can improve the flashy blocking backgrounds. There is no magic universal value. |
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New member Username: DuncanlPost Number: 4 Registered: May-06 | Thanks FYI for the info. I now have some new info through research. I think the problem I am having is "posterization", not macroblocking. Is this an issue on just DLP or any HDTV? |
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Silver Member Username: FyiDallas, Texas Post Number: 707 Registered: May-05 | Describe posterization! I've never heard of that term. Is that a definition from an ISF tech? |
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Silver Member Username: Formerly_fxDallas, Tx Post Number: 109 Registered: Mar-06 | I think he means pixelation FYI. xvxvxvx |
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New member Username: DuncanlPost Number: 5 Registered: May-06 | Here is a link the web site I found with video artifact examples. The example for posterization is what I am actually getting. http://www.michaeldvd.com.au/Articles/VideoArtefacts/VideoArtefacts.html Here is another link that shows what I am seeing. It is very extreme in this photo but I get this effect in low lit shadowy backgrounds. I also get the occasional "clay face". http://www.dpreview.com/learn/?/key=posterization If I am not using the correct term please let me know. Thanks, Larry |
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Silver Member Username: Formerly_fxDallas, Tx Post Number: 111 Registered: Mar-06 | Ahh, banding, I learned a new term today Larry. Thanks, xvxvxvx |
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Silver Member Username: FyiDallas, Texas Post Number: 708 Registered: May-05 | Very kewl link there, Larry! Too bad he didn't give a cause, although it looks like much of the artifact problems are digital mpeg compression related. Encoder/decoder image area prioritization is exaggerated on a big screen HD display. Looks like todays HD sets are so good that the flaws of mpeg video transmission cannot be hidden. It's a growing pain that probably won't stand for long. |
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New member Username: DuncanlPost Number: 6 Registered: May-06 | Hey FYI - Yes I agree. I have finally come to the conclusion that my issue is mostly related to DVD limitations or poor dvd quality. Many dvd's look beautiful on this screen and I rarely have any issues with HD movies / sports over comcast. In fact my biggest issues now is I never want to watch SD programming and waiting out the HD DVD / BluRay situation. Thanks for your input. |