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#26 2008-04-20 6:39 pm
- avkills
- demyelinated brain matter

- Registered: 2001-05-09
- Posts: 6357
Re: HP develops 30-bit display
Go into Photoshop and choose a hue (color) which is generally a degree between 0 and 360. From that you have saturation (strength of color) and lightness (brightness level).
Having more than 8bits per channel allows a lot more saturation and lightness values.
-mark
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#27 2008-04-20 9:58 pm
Re: HP develops 30-bit display
OK, I was wrong, the human eye can distinguish between 7 million and 10 million colors. This includes all hues, saturations, and brightnesses:
Number of Colors Distinguishable by the Human Eye
"Our difference threshold for colors is so low that we can discriminate some 7 million different color variations (Geldard, 1972)."
"It has been estimated that humans can distinguish roughly 10 million different colors, although the identification of a specific color is highly subjective, since even the two eyes of a single individual perceive colors slightly different."
This includes all saturations and brightness levels from pitch black to staring at the sun, as we can actually only distinguish roughly 150 different hues.
We often use the HSB model to classify colors. This model includes three components: Hue, Saturation, and Brightness. The hue of a color can be referred to as a particular shade or appearance of a color. There are 150 hues the eye can distinguish and they include the colors of the visible light spectrum.
(at least according to this one article, feel free to prove me wrong)
...having nothing in them of the feelings or principles of '76, now look to a single and splendid government of an aristocracy, founded on banking institutions and moneyed incorporations under the guise and cloak of their favored branches of manufactures, commerce and navigation, riding and ruling over the plundered ploughman and beggared yeomanry. -- TJ
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#28 2008-04-20 10:50 pm
- FutureDreamz
- 1.1.2.3.5.8.13.21.34.55

- From: カナダ
- Registered: 2007-01-07
- Posts: 4491
Re: HP develops 30-bit display
Bat wrote:
FutureDreamz wrote:
avkills wrote:
My Windows XP Pro install handles ZIP archives just fine; and I don't remember installing anything special. In fact Windows has handled ZIP archives out of the box longer than OS X.
-markFrom what I recall: Thanks to WinZIP.
Perhaps you need to Switch. Obviously this WinZIP thing is messing with your head.
http://homepage.mac.com/oatmeal/MAF/maxes/koolaid.gif
I stand corrected, then.
Thanks for clicking.
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#29 2008-04-20 11:14 pm
Re: HP develops 30-bit display
The thing about WinZIP is that some system com with it bundled and some do not. On those systems that do have it bundled, it's often trialware but not always.
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#30 2008-04-21 1:18 am
- mo' ron
- Hates Integrated Graphics

- From: NC, USA
- Registered: 2002-10-15
- Posts: 13254
Re: HP develops 30-bit display
I was under the impression that NTFS actually supports zip natively as a part of the filesystem, and treats zip archives as just another folder. Or maybe this was exclusive to vista.
What is the difference between Vista and OSX?
- Microsoft employees are excited about OSX.
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#31 2008-04-21 5:28 am
- Bat
- The Man From Larrabee
- Royal Wombat

- From: Björk, Björk
- Registered: 2001-05-14
- Posts: 23001
Re: HP develops 30-bit display
Google, folks.
'.zip files on Windows XP'
yields
Zip or unzip a file - Help and How-to - Microsoft Office OnlineWindows XP has basic built-in zip capability so that you can compress files by using the Compressed (zipped) Folder feature. Folders compressed by using ...
office.microsoft.com/en-us/help/HA011276901033.aspx - 47k - Cached - Similar pages - Note this
Creating a zip file with Windows XPIf you're using Windows XP, it already has the ability to create .zip files. To create a .zip file, first select all of the files you want to add. ...
https://www.cs.sfu.ca/CC/120/ggbaker/instr/xpzip - 4k - Cached - Similar pages - Note this
How To Zip or UnZip a File or Folder in Windows XPWindows XP has a built-in program that allows a file or folder to be compressed. ... NOTE: Please be cautious of opening .zip files from unknown mail ...
ict.cas.psu.edu/Training/HowTo/ENComputers/zip.html - 12k - Cached - Similar pages - Note this
How To Use Compressed (Zipped) Folders in Windows XPThis step-by-step article describes how to create and use compressed (or "zipped") folders in Windows XP. You can use compressed folders to store files in a ...
support.microsoft.com/kb/306531 - Similar pages - Note this
Windows XP Free ZIP compression for files and foldersBoth Windows XP Professional and Home Edition (and Win 2003 Server) now include a zip compression utility (similar to WinZip) that you can use to compress ...
www.iopus.com/guides/windows-zip.htm - 41k - Cached - Similar pages - Note this
Etc.
Cogito ergo pwnum.
"Fire up a colortini, sit back, relax, and watch the pictures, now, as they fly through the air."
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#32 2008-06-26 1:01 am
- Mr. T
- Uses STOS implicitly

- From: omnipresent
- Registered: 2002-04-02
- Posts: 3493
Re: HP develops 30-bit display
Bat wrote:
I'm in. Most folks aren't even aware that DX9-class videochips have been doing 96/128-bit color internally since '02, with the output dithered down to a 32-bit final output to match displays. Anyone who saw the huge gain between 4-bit and 8-bit alpha channels likely longs for more. I hate banding.
Almost everything now does 32 bits/channel, 128 bits total, 96-bit color plus alpha. Display tech just hasn't caught up yet. Good to see it get closer.
I've been working in OpenGL recently and discovered functions for 256-bit color (192 color bits + alpha). Implementation is another story. Games are generally written in 128-bit, though.
(apologies for resurrecting this thread)
while (1) {fork();}
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#33 2008-06-26 1:35 am
- Bat
- The Man From Larrabee
- Royal Wombat

- From: Björk, Björk
- Registered: 2001-05-14
- Posts: 23001
Re: HP develops 30-bit display
Mr. T wrote:
Bat wrote:
I'm in. [..]
I've been working in OpenGL recently and discovered functions for 256-bit color (192 color bits + alpha). Implementation is another story. Games are generally written in 128-bit, though.
(apologies for resurrecting this thread)
It's probably more correct to say something on the lines of games still being authored with 24-bit art assets. Implementations these days with the more complex DX9 and DX10.x functions range into, say, this (from the new ATi 4xx0 series).
Shared exponent HDR (RGBE 9:9:9:5) texture format support
On the output side,
Two independent display controllers
• Drive two displays simultaneously with independent resolutions, refresh rates, color controls and video overlays for each display
• Full 30-bit display processing
...
• Spatial/temporal dithering provides 30-bit color quality on 24-bit and 18-bit displays
Two integrated dual-link DVI display outputs
• Each supports 18-, 24-, and 30-bit digital displays at all resolutions up to 1920x1200
Much of this actually goes goes back some ways. And there are some displays, mostly in the pro range, that can take the wider output range w/out dithering. This might be the new HP in question...
HP also showed off its new DreamColor LP2480zx professional LCD monitor at the event:
[img]
Based on a 24" 30-bit 1920 x 1200 S-IPS panel, the most interesting feature of the display was that it shipped with factory calibrated color space options: sRGB, Adobe RGB, Rec. 601, Rec. 709, DCI-P3 emulation and full gamut.
http://www.anandtech.com/systems/showdo … 31&p=4
$3,500... but schweet. 
Cogito ergo pwnum.
"Fire up a colortini, sit back, relax, and watch the pictures, now, as they fly through the air."
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