BD=16 bit color, HD-DVD only 8 bit!

[qz3fwd]

So it seems that BD has an advantage in the color bitdepth over HD-DVD with over t 2X the bits devoted to color representation. Amazing. Capacity + Bit Depth. Each pixel's color is described by 16 bits of data for red, gree, blue, and chroma, instead of only 8.

Maybe this is why some think Disney BD's seem much more colorfull than HD-DVD's?

Cheers.

[fronn]

Originally Posted by qz3fwd

So it seems that BD has an advantage in the color bitdepth over HD-DVD with over t 2X the bits devoted to color representation. Amazing. Capacity + Bit Depth. Each pixel's color is described by 16 bits of data for red, gree, blue, and chroma, instead of only 8.

Maybe this is why some think Disney BD's seem much more colorfull than HD-DVD's?

Cheers.

Where did you hear that?

[haushausman]

Interesting. Any links regarding this? Just want to read up on it some more.

[stockstar1138]

Originally Posted by qz3fwd

So it seems that BD has an advantage in the color bitdepth over HD-DVD with over t 2X the bits devoted to color representation. Amazing. Capacity + Bit Depth. Each pixel's color is described by 16 bits of data for red, gree, blue, and chroma, instead of only 8.

Maybe this is why some think Disney BD's seem much more colorfull than HD-DVD's?

Cheers.

link?

[CptGreedle]

Just so you know... if this is anything like what I work with...

http://en.wikipedia.org/wiki/RGB#48-...16-bit_mode.29

16 bit color can not be viewed on any existing monitors (at least not that you would be able to afford). 16 bit images are always converted to 8 bit, visually there is almost no difference.
What it means is that there are more shades in-between pure black and pure white for each color, RGB (red, green, blue). 8 bit has 256 shades per color, while 16 bit has 65536.
This is useful for image editing and will double the size of any image you work on. This prevents artifacts, polarization, compression errors, color discrepancies, etc.
After the image is edited, it is put back into 8 bit mode for output (print/screen).

However if this refers to "Highcolor", than I think you must be mistaken as well. Everything you would see on a movie is already in highcolor.

[spicynacho]

Most LCD panels are 8-bit, I think some of the newer samsung and sonys are 10-bit. Higher color depth LCDs are very expensive. That is why most hardcore photoshop types still have those big honkin' CRT's on their desks.

[kjack]

Originally Posted by qz3fwd

Each pixel's color is described by 16 bits of data for red, gree, blue, and chroma, instead of only 8.

Not true, both formats use the same 8-bit per color 4:2:0 color formats.

[RickD]

Out of curiosity, would a 16 bit transfer use double the storage space? Would these even fit on a 50Gb Blu-Ray?

Rick

[spicynacho]

Originally Posted by RickD

Out of curiosity, would a 16 bit transfer use double the storage space? Would these even fit on a 50Gb Blu-Ray?

Rick

It would use a hell of a lot more than double. 8 bit is 255 colors, 16 bit is about 16 million colors.

[RickD]

Yea, but from a storage standpoint 16bits is double 8bits.

Rick

[181]

2^8 = 256 shades per R G B
2^16 = 65,536 shades per R G B

so if you have 24 bit RGB color

8 bits + 8 bits + 8 bits = 24 bits

24 bit color is 16,777,216 colors

Using 16 bits per Red Green Blue, you would have 48 bits per pixel for coloring.

48 bit color is 281,474,976,710,656 colors (I don't know if the human eye can see this many anyways)

1920 x 1080 x 48 = 99,532,800 bits per frame (raw)

12,441,600 bytes per frame (raw)

So 12.5 MiB of raw data per frame. But then you have compression...