240215 1L2L0X0C_S2710.KTS/YECLCIN.KTS, http://farbe.li.tu-berlin.de/CECS.HTM or http://color.li.tu-berlin.de/CECS.HTM

For links to the Section 2, Chapter C Colour Spaces, Colour Differences, and Line Elements (2021), see
For this image page with 10 colour series, see CECS in English, CGCS in German.
For the previous image page, see CEBS in English, CGBS in German.
For the next image page, see CEDS in English, CGDS in German.
For the first image page of the previous chapter B, see BEAS in English, BGAS in German.
For the first image page of the next chapter D, see DEAS in English, DGAS in German.

Content list of chapter C: CEA_I in English or CGA_I in German.
Summary of chapter C: CEA_S in English or CGA_S in German.
For the large image page of chapter C with 260 colour series, see ce2s in English or cg2s in German.

Section 2, Chapter C
Colour Spaces, Colour Differences, and Line Elements (2021), Image part CECS

Title: Colour thresholds and line elements in 10 colour spaces LABJNDu0 to 9
1. Introduction and goals;
2. Modifications LABJNDu0 to 9 of the colour difference formula LABJND according to CIE 230:2019;
3. Corresponding line elements for the experimental contrast Y/(delta Y);
4. Absolute lightness L* (CIE 15) and T* (IEC sRGB) and relative lightness l* and t*;
5. Logarithmic and linear figures for L*, T*, l* and t*;
6. Logarithmic figures for threshold delta Y, sensitivity (delta Y)/Y, and contrast Y/(delta Y);
7. Parameters: A0n=1,5, A1n=sv*cx, A2n=cv*cx, sv=0,0170, cv=0,0058, cx=1,00;
8. Variations cx=0,84, 0,67 und 0,42.

The following ten pages CEC0 to CEC9 of this chapter
show the content with links to the single figures in up to six formats.


Figure CEC0L0N1.jpg: Output in format A6 of the file CEC0L0NP.PDF, see
CEC0L0N1. PS / TXT / PDF / jpg

CEC0: TUB-test chart CEC0; LABJNDu0 formulae similar to CIE 230
LABJND lightness, A0n=1,50, A1n, A2n, cx=1,00
absolute and relative lightness, sensitivity and contrast



Figure CEC1L0N1.jpg: Output in format A6 of the file CEC1L0NP.PDF, see
CEC1L0N1. PS / TXT / PDF / jpg

CEC1: TUB-test chart CEC1; LABJNDu1 formulae similar to CIE 230
LABJND lightness, A0n=1,50, A1n, A2n, cx=1,00
absolute and relative lightness, sensitivity and contrast



Figure CEC2L0N1.jpg: Output in format A6 of the file CEC2L0NP.PDF, see
CEC2L0N1. PS / TXT / PDF / jpg

CEC2: TUB-test chart CEC2; LABJNDu2 formulae similar to CIE 230
LABJND lightness, A0n=1,50, A1n, A2n, cx=0,84
absolute and relative lightness, sensitivity and contrast



Figure CEC3L0N1.jpg: Output in format A6 of the file CEC3L0NP.PDF, see
CEC3L0N1. PS / TXT / PDF / jpg

CEC3: TUB-test chart CEC3; LABJNDu3 formulae similar to CIE 230
LABJND lightness, A0n=1,50, A1n, A2n, cx=0,67
absolute and relative lightness, sensitivity and contrast



Figure CEC4L0N1.jpg: Output in format A6 of the file CEC4L0NP.PDF, see
CEC4L0N1. PS / TXT / PDF / jpg

CEC4: TUB-test chart CEC4; LABJNDu4 formulae similar to CIE 230
LABJND lightness, A0n=1,50, A1n, A2n, cx=0,43
absolute and relative lightness, sensitivity and contrast



Figure CEC5L0N1.jpg: Output in format A6 of the file CEC5L0NP.PDF, see
CEC5L0N1. PS / TXT / PDF / jpg

CEC5: TUB-test chart CEC5; LABJNDu5 formulae similar to CIE 230
LABJND lightness, A0n=1,50, A1n, A2n, cx=1,00
absolute and relative lightness, sensitivity and contrast



Figure CEC6L0N1.jpg: Output in format A6 of the file CEC6L0NP.PDF, see
CEC6L0N1. PS / TXT / PDF / jpg

CEC6: TUB-test chart CEC6; LABJNDu6 formulae similar to CIE 230
LABJND lightness, A0n=1,50, A1n, A2n, cx=1,00
absolute and relative lightness, sensitivity and contrast



Figure CEC7L0N1.jpg: Output in format A6 of the file CEC7L0NP.PDF, see
CEC7L0N1. PS / TXT / PDF / jpg

CEC7: TUB-test chart CEC7; LABJNDu7 formulae similar to CIE 230
LABJND lightness, A0n=1,50, A1n, A2n, cx=0,84
absolute and relative lightness, sensitivity and contrast



Figure CEC8L0N1.jpg: Output in format A6 of the file CEC8L0NP.PDF, see
CEC8L0N1. PS / TXT / PDF / jpg

CEC8: TUB-test chart CEC8; LABJNDu8 formulae similar to CIE 230
LABJND lightness, A0n=1,50, A1n, A2n, cx=0,67
absolute and relative lightness, sensitivity and contrast



Figure CEC9L0N1.jpg: Output in format A6 of the file CEC9L0NP.PDF, see
CEC9L0N1. PS / TXT / PDF / jpg

CEC9: TUB-test chart CEC9; LABJNDu9 formulae similar to CIE 230
LABJND lightness, A0n=1,50, A1n, A2n, cx=0,43
absolute and relative lightness, sensitivity and contrast

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For the archive information (2000-2009) of the BAM server "www.ps.bam.de" (2000-2018)
about colour test charts, colorimetric calculations, standards, and publications, see
indexAE.html in English, indexAG.html in German.

Back to the main page of this TUB web site (NOT archive), see index.html in English, indexDE.html in German.