36 bit color!

MasterGoa

MasterGoa

New member
Holy crap!

With the new Bluray player, you can chose 36 bit colour
on the HDMI port.

I tried it,. not knowing that the TV could handle it no problem.

Wow... Check your instructions and try it out if you can!

It is as much a difference than going from DVD to Bluray...

Enjoy!
 
Placebo effect? The difference might be due to whatever postprocessing the player does with a 24-bit BD source.
 
Believe you me, I am way past placebo effect.

I switch to and from it while watching To Story 3
and the difference is quite noticeable...

It's called deep colour and is supposed to be in many BR disks.
it is 12 bit per channel...
 
Interesting.

Bluray standard is 24 bits, so they actually use the extra bits
for intensity information. The player I have also upscales
all video to 36 bit 4:4:4 colour space...

Hmmm....
 
To see the difference, look for scenes with dull colors, clear sky shots or lot's of fade ins/outs. Banding should be gone with Deep Color mode.

Similar de-banding effect can be achieved on a convectional 24-bit output with any HTPC configuration if you install madVR video renderer for playback.
 
MasterGoa said:
Interesting.

Bluray standard is 24 bits, so they actually use the extra bits
for intensity information.
Click to expand...

BD doesn't have any extra bits above 24-bit color space :confused:

Like I said, your player might be post processing some chroma and make things "pop" more but that's not the case or every system where Deep Color is enabled. It's all post processing.
 
Are you sure YOU aren't confused? :hmm:

Source is 24-bit, there is no extra color space data on the disc. If the signal from your BD player is 36-bit, the player is postprocessing the data from the disc and MAY add chroma info that isn't there (best guess interpolation) or possibly banding reduction.

I have a Deep Color plasma tv, my player (PS3) has a Deep Color toggle, and the cabling is 48-bit spec. Toggling Deep Color does absolutely nothing besides make some scenes more contrasty on my setup. I can hardly imagine a difference like going from DVD to HD...
 
I dont have time to babysit your inability to
beleive anything outside of what you think is true.

36 bit color exists on Bluray and it has since Dec 17 2013.

What I did with this post is point out there is a big difference
when using it, image quality wise.

Then I read about it and found out why.

What you said is placebo effect, is not possible, blah, blah, blah...
 
MasterGoa said:
I dont have time to babysit your inability to
beleive anything outside of what you think is true.

36 bit color exists on Bluray and it has since Dec 17 2013.
Click to expand...

Well I'm sorry I don't live in the future. :hmm:

Edit: Well I've looked, I can't find any evidence of BDs being produced in 36-bit color space. What's your source?
 
Last edited:
Indeed! Dec 17 2009!

They reviewed the BR standard for 3D and added 5 new enhancements to the
codec standard ITU-T H.264 which enhance color depth, spacial information
for 3D and other improvements.

Toy Story 3 is one of the Blurays to benefit from these enhancement.
 
MasterGoa said:
Indeed! Dec 17 2009!

They reviewed the BR standard for 3D and added 5 new enhancements to the
codec standard ITU-T H.264 which enhance color depth, spacial information
for 3D and other improvements.

Toy Story 3 is one of the Blurays to benefit from these enhancement.
Click to expand...
MasterGoa said:
Good read on what they added:http://en.wikipedia.org/wiki/H.264/MPEG-4_AVC
Click to expand...

Did you read and understand the info you posted? :confused:

All that happened on Dec 17 2009 was that the spec for 3D Blu Ray was finalized. They did NOT change the h.264/AVC profile in use for BD, which still uses 4:2:0 YCbCr, which is equivalent to 24-bit color space.

Pro cameras are the only devices that make use of anything higher than 24-bit color through h.264/AVC. Look up the profiles.
 
If only... That is the problem.
You are so eager to be right, you are totally
off the tracks and probably tap yourself on the back,
marveling at your own magnificence...

Here is a scan from my BR's user manual:

HDMI Deep Colour (HDMI 1)
– To select Deep Colour modes for the
HDMI 1 output. Deep Colour is an OPTION for some TVs or projectors
that feature HDMI v1.3 or higher input.
Normally, each pixel of the video image is transmitted using 24-bit data
(8-bit per channel for R, G, B or Y, Cb, Cr). If Deep Colour is supported
on your TV each pixel of the video image can be transmitted using 30-bit
(10-bit per channel) or 36-bit (12-bit per channel) data. The increased bit
depth should result in smoother colour transitions and better gradients
for better picture quality.
For BD discs with native deep colour on them the extra information will
be passed to the TV. For up-scaled content such as DVDs the deep colour
output will be interpolated but can still result in a smoother picture. The
dithering/limiting options allow discs with deep colour content to be sent
to TVs with limited deep colour support.
Dithering is a way to softly limit any extra colour information in the source
material that the display cannot handle by adding ‘noise’ to prevent an
abrupt step in the levels.
The available options are:
36 Bits
– Always use the maximum 36-bit per pixel Deep Colour mode
for the output.
30 Bits (Dithered)
– Use the 30-bit per pixel Deep Colour mode with
dithering of any over 30 bit content.
30 Bits
– Use the 30-bit per pixel Deep Colour mode and hard limit
output at 8 bits per colour.
Off (Dithered)
– Do not use Deep Colour, dithering any over 24 bit
content.
Off (default)
– Do not use Deep Colour, hard limit output at 8 bits per
colour.

Toy Story 3 uses Deep Color.

Make of it what you want.
Keep your player and TV at 24 bit, enjoy the original
Bluray specs and have a great time watching movies
as you like them.
 
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