File:Ciecam02 luminance level adaptation factor.svg

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Summary

Description	CIECAM02: log-log plot of luminance level adaptation factor and its cube root approximation, versus the luminance level of the adapting field. The axes indicate the base 10 logarithm of the quantity, so L_A ranges from 10^-4 to 10⁴, while F_L ranges from 10^-4 to 10.
Date	12 February 2008
Source	MATLAB
Author	Myself

Licensing

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I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

MATLAB Code

la=logspace(-4,4)
k=1./(5*la+1)
fl=k.^4.*la+0.1*(1-k.^4).^2.*(5*la).^(1/3)
loglog(la,fl,la,0.1715*la.^(1/3))
set(gca,'XTickLabel',-4:2:4,'YTickLabel',-4:1)

If you are curious as to how I derived the 0.1715 coefficient, you need simply substitute la=1 to get k=1/6 and fl=0.1715.

File history

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	Date/Time	Dimensions	User	Comment
current	19:15, 12 February 2008	340 × 264 (7 KB)	Adoniscik	bite me #1
	19:13, 12 February 2008	476 × 540 (23 KB)	Adoniscik	Mediawiki is starting to annoy me.
	19:09, 12 February 2008	340 × 264 (7 KB)	Adoniscik	Previous upload stalled.
	19:06, 12 February 2008	340 × 264 (7 KB)	Adoniscik	I hope I get it now.
	19:04, 12 February 2008	340 × 264 (7 KB)	Adoniscik	Properly?
	19:03, 12 February 2008	400 × 400 (7 KB)	Adoniscik	Cropped
	19:01, 12 February 2008	400 × 400 (7 KB)	Adoniscik	{{Information \|Description=CIECAM02: log-log plot of luminance level adaptation factor and its cube root approximation, versus the luminance level of the adapting field. The axes indicate the base 10 logarithm of the quantity, so L<sub>A</sub> ranges from