240215 1L2L0X0C_S2710.KTS/YEHLCIN.KTS, http://farbe.li.tu-berlin.de/CEHS.HTM or http://color.li.tu-berlin.de/CEHS.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 CEHS in English, CGHS in German.
For the previous image page, see CEGS in English, CGGS in German.
For the next image page, see CEIS in English, CGIS 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 CEHS

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, sv=0,0170, cv=0,0058, cx=1,00;
8. Variations cx=0,84, 0,67 und 0,42.

The following ten pages CEH0 to CEH9 of this chapter
show the content with links to the single figures in up to six formats.


Figure CEH0L0N1.jpg: Output in format A6 of the file CEH0L0NP.PDF, see
CEH0L0N1. PS / TXT / PDF / jpg

CEH0: TUB-test chart CEH0; LABJNDu0 formulae similar to CIE 230
LABJND lightness, A0n=1,50, A1n, A2n/cx, cx=1,00
absolute and relative lightness, sensitivity and contrast



Figure CEH1L0N1.jpg: Output in format A6 of the file CEH1L0NP.PDF, see
CEH1L0N1. PS / TXT / PDF / jpg

CEH1: TUB-test chart CEH1; LABJNDu1 formulae similar to CIE 230
LABJND lightness, A0n=1,50, A1n, A2n/cx, cx=1,00
absolute and relative lightness, sensitivity and contrast



Figure CEH2L0N1.jpg: Output in format A6 of the file CEH2L0NP.PDF, see
CEH2L0N1. PS / TXT / PDF / jpg

CEH2: TUB-test chart CEH2; LABJNDu2 formulae similar to CIE 230
LABJND lightness, A0n=1,50, A1n, A2n/cx, cx=0,84
absolute and relative lightness, sensitivity and contrast



Figure CEH3L0N1.jpg: Output in format A6 of the file CEH3L0NP.PDF, see
CEH3L0N1. PS / TXT / PDF / jpg

CEH3: TUB-test chart CEH3; LABJNDu3 formulae similar to CIE 230
LABJND lightness, A0n=1,50, A1n, A2n/cx, cx=0,67
absolute and relative lightness, sensitivity and contrast



Figure CEH4L0N1.jpg: Output in format A6 of the file CEH4L0NP.PDF, see
CEH4L0N1. PS / TXT / PDF / jpg

CEH4: TUB-test chart CEH4; LABJNDu4 formulae similar to CIE 230
LABJND lightness, A0n=1,50, A1n, A2n/cx, cx=0,42
absolute and relative lightness, sensitivity and contrast



Figure CEH5L0N1.jpg: Output in format A6 of the file CEH5L0NP.PDF, see
CEH5L0N1. PS / TXT / PDF / jpg

CEH5: TUB-test chart CEH5; LABJNDu5 formulae similar to CIE 230
LABJND lightness, A0n=1,50, A1n, A2n/cx, cx=1,00
absolute and relative lightness, sensitivity and contrast



Figure CEH6L0N1.jpg: Output in format A6 of the file CEH6L0NP.PDF, see
CEH6L0N1. PS / TXT / PDF / jpg

CEH6: TUB-test chart CEH6; LABJNDu6 formulae similar to CIE 230
LABJND lightness, A0n=1,50, A1n, A2n/cx, cx=1,00
absolute and relative lightness, sensitivity and contrast



Figure CEH7L0N1.jpg: Output in format A6 of the file CEH7L0NP.PDF, see
CEH7L0N1. PS / TXT / PDF / jpg

CEH7: TUB-test chart CEH7; LABJNDu7 formulae similar to CIE 230
LABJND lightness, A0n=1,50, A1n, A2n/cx, cx=0,84
absolute and relative lightness, sensitivity and contrast



Figure CEH8L0N1.jpg: Output in format A6 of the file CEH8L0NP.PDF, see
CEH8L0N1. PS / TXT / PDF / jpg

CEH8: TUB-test chart CEH8; LABJNDu8 formulae similar to CIE 230
LABJND lightness, A0n=1,50, A1n, A2n/cx, cx=0,67
absolute and relative lightness, sensitivity and contrast



Figure CEH9L0N1.jpg: Output in format A6 of the file CEH9L0NP.PDF, see
CEH9L0N1. PS / TXT / PDF / jpg

CEH9: TUB-test chart CEH9; LABJNDu9 formulae similar to CIE 230
LABJND lightness, A0n=1,50, A1n, A2n/cx, cx=0,42
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.