MobileRead Forums - View Single Post - K1 and K2 text side-by-side via scanner

shinew · 02-28-2009, 04:11 PM

alright, I just did some more objective observation using the last 2 higher resolution pictures. and below are the results:
K1 Text/Background contrast(3x3 pixel sample for text, 5x5 pixel sample for background):

K2 Text/Background contrast(3x3 pixel sample for text, 5x5 pixel sample for background):

Here is a 3D overlay on the Lab color space:

So it seems that the K2 is actually overall brighter on the luminosity scale. But the relative contrast between K1 & K2 are close enough(maybe a slight edge to the K1) that they're very similar.

02-28-2009, 04:11 PM	#10
shinew Addict Posts: 309 Karma: 1008082 Join Date: Feb 2009 Location: NYC Device: Kindle PW, K4 Touch, iPad2, Samsung Galaxy S II	alright, I just did some more objective observation using the last 2 higher resolution pictures. and below are the results: K1 Text/Background contrast(3x3 pixel sample for text, 5x5 pixel sample for background): K2 Text/Background contrast(3x3 pixel sample for text, 5x5 pixel sample for background): Here is a 3D overlay on the Lab color space: So it seems that the K2 is actually overall brighter on the luminosity scale. But the relative contrast between K1 & K2 are close enough(maybe a slight edge to the K1) that they're very similar.