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Wow 4K Laserdiscs! The LD format has come a long way since the Japan only MUSE HDLD discs. The video still analog or did they have to make concessions for UHD? :D
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“ The LD format has come a long way since the Japan only MUSE HDLD discs. The video still analog or did they have to make concessions for UHD?”
In the case of The Wizard Of Oz, this video can explain your question better than I can. https://youtu.be/x-6MYP0RxTI |
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It strikes the ear about as oddly as it would if I said I was going to watch a UHD Betamax tape. If someone were to say they were "taping" taping something on their DVR or talking about leaving electric lights "burning" I'd be tempted to ask them if they have enough DVR tapes or light bulb kerosene to poke fun at them in a similar way.. |
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Next is to test the BluRay movie on the Westy and CTC-7 Worthington. Even though the HDMI converter will dumb done the images on the roundies, I expect improved images over the 75th anniversary version.
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of 0-10. It suffers from serious "peaking" (dark an light halos) , low resolution in most areas, and extreme loss of detail in low contrast areas (like her nose). 1080i would be worse because they would be unable to increase resolution (since its already horrendously bitrate limited) and the interlace would case even worse problems. I have not seen ANY television sources in years, except Blu-ray discs, that were above 5 in picture quality. Most of our cable TV is 2 on a 0-10 scale, the very best is 4. That includes OTA channels over cable. The local TV stations sometimes reach 5 when transmitting local material of talking heads actually OTA. Much of cable is 0 on a scale of 0-10. I should add that my Sony LCD TV can produce 9 when fed from my Canon DSLR camera in [email protected]. The difference is stunning. |
“Worse. I would rate that image quality 4 on a scale
of 0-10. It suffers from serious "peaking" (dark an light halos) , low resolution in most areas, and extreme loss of detail in low contrast areas (like her nose). “ That image was from a Direct TV source. Depending on where you read, Direct TV runs about 7 to 12 mbps. I also have Apple TV+. FlatpanelsHD editor-in-chief Rasmus Larsen has now put some numbers to the claims. Rasmus Larsen from HD forum writes that Apple TV+ shows have the highest streaming quality for 4K out of all the services on the market at the moment, and eclipses most iTunes movies in bit rates. Apple TV+ drama SEE hit highs of 41 Mbps with an average bitrate of 29 Mbps when streaming using an Apple TV 4K. Even the Snoopy cartoon recorded a 13Mbps average, which is high given it is a 2D cartoon with a relatively limited color palette. https://visions4netjournal.com/wp-co...3B471B2A3.jpeg On the BluRay disc of Wizard of Oz, I was seeing 90+ Mbps. I will be retesting Wizard Of Oz on a BluRay player as viewed on the LG E8. |
Screenshot showing 91.1Mbps on UHD BluRay disc of Wizard of Oz. I’ve seen 95+ Mbps.
https://visions4netjournal.com/wp-co...98BF3834C.jpeg |
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Hi all! I’m new to this site and I just want to share that I just recently bought the Sony XBR 77 A9G Master Series OLED and very happy with it.
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Warner Brothers digital copy of Wizard Of Oz UHD HDR had to be opened with a new application called “Movies Anywhere”.
I found out that Movies Anywhere and iTunes are neck and neck when it comes to peak and average bitrate for video at around 25mbps average and peaks up to 30mbps for 4K video. We previously uploaded screenshots of the digital copy above from Prime Video which has 12 to 15 mbps. So here are retakes using the Movies Anywhere app. which bumps up the OLED white from 40 to 50 and increases the contrast 10 points. It also defaults to a new calibration setting called “Dolby Vision Cinema Home”. I prefer this setting overall for this movie compared to “ISF EXPERT DARK ROOM”. Noice the freckles on Dorthy’s face which are not visible on previous releases. You can’t see it in these photos, but the movie has a 3D look to it. These photos best viewed on a wide color gamut monitor like DCI P3. I read another thread here asking if it was possible to see original NTSC colors of Wizard Of Oz on UHD television with wide color gamut. These shots were taken from an LG OLED UHD HDR television with DCI P3 color gamut. https://visions4netjournal.com/wp-co...F1A16654C.jpeg https://visions4netjournal.com/wp-co...4EABBED11.jpeg https://visions4netjournal.com/wp-co...51C8EFF30.jpeg https://visions4netjournal.com/wp-co...946512C03.jpeg https://visions4netjournal.com/wp-co...26FAD3C25.jpeg https://visions4netjournal.com/wp-co...9500FCA2B.jpeg https://visions4netjournal.com/wp-co...9C3587D65.jpeg https://visions4netjournal.com/wp-co...1CA78306B.jpeg https://visions4netjournal.com/wp-co...7EB3EFE63.jpeg We still plan on viewing this movie using an UHD BluRay player on the LG OLED. |
Not sure what's going on here, but these pictures are full of artifacts.
Can't guess if the artifacts in the source, generated by the TV, or generated by your camera creating some sort of moire' in combination with the TV pixels that then got garbled by the jpg compression, or something your web host did to them. Many areas (saturated colors in particular) look like old laser-printer dithering. Also, they are posted as jpg, and the colors have been converted to sRGB. Viewing on a normal sRGB color gamut monitor, or any properly profiled monitor with a color managed app like Photoshop, will give the correct saturation, but the color gamut will only be sRGB. Viewing on a P3 device without color management results in over-saturated colors. |
OK - I opened the EXIF data on one of the pics and I see a shutter speed of 1/200. It appears this has captured some sort of duty-cycle dithering of the pixels on the display. I would try shooting at 1/30 second or slower and see what happens.
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Well that is interesting. I’m viewing these photos on an iPad Pro 2 10.5 with DCI P3 color gamut and they all look very clean with no evidence of which you speak of. I wonder as you what is going on. I have noticed that this forum still degrades full 6000X4000 resolution images which these are. Would you be so kind as to go this link https://visions4netjournal.com/4k-portfolio/ and click on one or two of the same images and tell me if you see the same artifacts?
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This is the data from the first image. Dorothy’s face.
https://visions4netjournal.com/wp-co...113C205C2.jpeg |
BA44021A-F920-4EFE-9165-CBF1CA78306B specifically is the one I looked at, and yes, it is the same when downloaded from the page link you just gave.
When viewing on the iPad pro, are you enlarging it to original pixel resolution? If not, the viewer app may be smoothing out the artifacts. As far as the color being correct on the iPad, this only indicates your viewer app is properly color managed; it does not indicate that the full P3 gamut is preserved in the jpg file. |
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