Deep color support for 1080p SDR?

Hi folks,


I have a 1080p TV & AVR with deep color support. When my Blu-ray player and Fire TV are in use, I can see an HDMI signal with 12-bit pixel depth:


User uploaded file


With an Apple TV 4K configured to output 1080p SDR, I only see 8-bit pixel depth. Is there any way to configure the Apple TV 4K for deep color support? If not, is this something Apple would consider adding? Perhaps with some new Match Content formats: 1080p SDR (10-bit) and 1080p SDR (12-bit)?


Thank you,


Mike

Posted on Mar 29, 2018 9:35 AM

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7 replies

Mar 29, 2018 1:55 PM in response to alakaboo

Deep color is not the same as HDR. While both feature more than 8 bits per sample, Deep color does not affect the dynamic range, while HDR has provisions to deal with extreme brightness and deep darks, adjustable for the characteristics/capabilities of the output screen.

In both cases, content has to be made for it. You can only show off Deep Color with Deep Color source material. You can only show off HDR with HDR source material. As far as technology progress goes, Deep Color has been taken over by HDR, marketing wise. They appeared on the market too close to each other, for the first one to really take off. There are no Deep Color tv shows, or Blu-rays, or streaming services.

Mar 29, 2018 2:12 PM in response to Urquhart1244

Hi,

Urquhart1244 wrote:


Deep color is not the same as HDR.

That's what I thought, which is why I was confused by Tom's initial response.

In both cases, content has to be made for it. You can only show off Deep Color with Deep Color source material.

That makes sense.

As far as technology progress goes, Deep Color has been taken over by HDR, marketing wise. They appeared on the market too close to each other, for the first one to really take off.

That also makes sense, and it's what I feared. Time to start saving up for that new OLED panel...

There are no Deep Color tv shows, or Blu-rays, or streaming services.

Sony has a "Mastered in 4K" series of Blu-ray discs that are 1080p but feature an expanded color gamut. Still, that's pretty niche. I've also read that players can do color interpolation to expand the color gamut, but I have no idea if that would look any good. I found this informative note on Blu-ray.com:

Deep Colour allows for more than 24-bit to be transported over HDMI, so when you playback a Blu-ray and you transmit more than 24-bit to your display, the player is basically multiplying/padding the bits to the desired Deep Colour level, for example 36-bit (12-bit per component). This shouldn't make the image pop more or give it more 'colour' because no additional colour is encoded on the disc, what it may do is allow for more precision for the colour space processing within the display, i.e. going from YCC to RGB to pixels, and it can also reduce banding due to the extra precision.

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Deep color support for 1080p SDR?

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