[BD] Titoli con trattamento Super Bit Mapping for Video
Lista Blu-ray con logo SBMV (Titolo - Codice UPC,EAN)
- After Earth - 8013123046246
- Boog & Elliot: la trilogia - 8013123038272
- Come eravamo - 8013123044952
- Django unchained - 8013123044556
- Elysium - 8013123045799
- Evangelion: 1.11 You Are (Not) Alone - N/A
- Fronte del porto - 8013123044969
- Heavy Metal - 8013123040312
- Hook - 4030521710580
- Hotel Transilvania 3D - 8013123044426
- I Puffi - 8013123038425
- I Puffi 2 in 3D - 8013123045720
- Il figlio di Babbo Natale - 8013123043665
- Il selvaggio - 8013123045003
- Indovina chi viene a cena - 8013123044983
- Jumanji - 8013123040329
- L'ammutinamento del Caine - 8013123040725
- Lawrence d'Arabia - 8013123042903
- Lockout - 8013123042675
- Man in Black II - 8013123041999
- Man in Black III - 8013123042781
- Oliver! - 8013123044976
- Piovono Polpette 3D - 8013123036803
- Profumo di donna - 8013123045294
- Quel che resta del giorno - 8013123045034
- Salt - 8712609666618
- Sindrome Cinese - 8013123044990
- Sotto assedio - ???
- Spider-Man (Mastered in 4K) - 5050629216127
- Stand by me - 8013123040435
- Starship Troopers: l'invasione - 8013123042415
- The Amazing Spider-Man in 3D - 8013123043399
- The Green Hornet - 5050629155631
- The Green Hornet 3D - 8013123039958
- The Karate Kid - 8013123036681
- The Karate Kid (2010) - 8013123036766
- The Karate Kid II - 8013123036698
- The Social Network - 8712609668780
- TinTin 3D - 8013123041173
- Tootsie - 8013123044884
- Total Recall - 8013123044013
- U-Boot 96 - 8013123040305
- World Invasion - 8013123039019
I blu-ray nella lista qui sopra riportano sul retro della copertina il logo SBMV. Si tratta di un particolare algoritmo di dithering usato durante il processo di encoding:
Citazione:
SPHE uses Super Bit Mapping for Video (SBMV) on all Sony titles now which greatly reduces color banding. In that regard, you will notice the little SBMV logo on the back of the Blu-ray packaging.
questo:
Citazione:
SBMV is a dithering algorithm useful to prevent color banding artefacts (aka "not uniform color gradations"). It doesn't need a particular support from the standalone players since it affects the encoding process (so the result is already encoded). There are anyways some players that have SBMV built-in as a filter to allow an user to mitigate the color banding artefacts on an already compressed video.
The master doesn't suffer from color banding (in general). Masters have higher quality/bit depth/informations than the final encoded version for bluray. The color banding comes when you do the compression stage, because some color informations are thrown away. Dithering is useful to 'mask' this discarded informations using a sort of 'rounding'. If you don't dither, there's no 'rounding' so you see the bandings. You do something similar with audio too. When you need to go from a 24bit audio to a 16 bit audio, you do a bit-depth conversion adding 'noise' to round the conversion.
Speaking about the video, the masters are in general at 10bit (but there are sources at higher bit-depth), while the videos on bluray are forced to 8bit (because it's more efficient compression-wise and human eye is weak on color informations, except color bandings).
Edit: Ecco una immagine con un esempio dell'effetto di dithering
http://provideocoalition.com/images/..._example01.png