|03-09-2010, 03:19 AM||#1|
Join Date: Jan 2010
Device: Nook,Nook Simple Touch, Nook Color
What does Grey Level(Scale) mean
I'm just bought Nook, which on the wiki says it has 16bit grey levels.
I put some image pdf into it, and found that the images have very obvious boards between the colours.
Which looks like this image:
If the Grey level for ebook device is the same definition as the wiki
16bit should be enough for a picture, or 16 level means 4bit (16 levels of grey)?
|03-09-2010, 03:29 AM||#2|
Join Date: Feb 2008
Device: iLiad, DR1000S, HTC Hero, DR800SG
it just says 16 levels of grey, not 16 bit. 16 levels of grey are enough to display pictures if properly dithered.
|03-09-2010, 06:34 AM||#3|
Join Date: Mar 2006
Location: Mississippi, USA
Device: Kindle 3, Kobo Glo HD
|03-10-2010, 03:52 AM||#4|
Join Date: Mar 2010
It is actually 16 levels of Gray (4 bit).
Text is displayed using 4 levels of gray.
Menu items & icons using 8 levels of gray.
Images are displayed using 16 levels of gray.
I have posted an image here...
|03-12-2010, 08:32 PM||#6|
Join Date: Feb 2009
Location: Berkeley, Califorina
Device: Kindles,SurfacePro2,NookColor,Pocket Edge,Samsung 10.1 Tab,S2 phone
I did a blog article on this when the Kindle first went to the 16 levels of gray and what that meant vs 4 and 8 levels as far as potential.
It's at http://bit.ly/4vs16grays
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