29 Oct 2012, 00:56
#6549
Hi, I have some question about your LED-TV Reviews.
I saw that Color accuracy(calibration) was evaluated by certain program.
example:
http://www.flatpanelshd.com/pictures/so ... oer-1l.jpg
On the left side, CIE 1931 xy, on the right side, dE94 graph for each colors.
Can you let me know the reason that you used dE94 for measuring display color difference?
As I know, dE94 was made for evaluating graphic arts or textile, is it also able to applicable on evaluating display?
And what is the basis of the following criteria? Are they official standard?
===================================================
The graph says this:The number on the left is the delta value. Delta is a difference between two factors; here it’s the difference between the measured color on the panel and the actual color that is our target.
• A delta value lower that 2 results in a visible deviation from the actual color.
• A delta value over 4 or 5 results in wrong colors.
• A delta value between 1 and 2 results in precise but not perfect colors.
• A delta value lower than one results in almost perfect colors. The target is 0.
• Everything between 0 and 1 is barely visible to the human eye.
===================================================
I'm sorry about my bad English.
I saw that Color accuracy(calibration) was evaluated by certain program.
example:
http://www.flatpanelshd.com/pictures/so ... oer-1l.jpg
On the left side, CIE 1931 xy, on the right side, dE94 graph for each colors.
Can you let me know the reason that you used dE94 for measuring display color difference?
As I know, dE94 was made for evaluating graphic arts or textile, is it also able to applicable on evaluating display?
And what is the basis of the following criteria? Are they official standard?
===================================================
The graph says this:The number on the left is the delta value. Delta is a difference between two factors; here it’s the difference between the measured color on the panel and the actual color that is our target.
• A delta value lower that 2 results in a visible deviation from the actual color.
• A delta value over 4 or 5 results in wrong colors.
• A delta value between 1 and 2 results in precise but not perfect colors.
• A delta value lower than one results in almost perfect colors. The target is 0.
• Everything between 0 and 1 is barely visible to the human eye.
===================================================
I'm sorry about my bad English.