240215 1L2L0X0C_S2710.KTS/YEALCIN.KTS, http://farbe.li.tu-berlin.de/CEAS.HTM or http://color.li.tu-berlin.de/CEAS.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 CEAS in English, CGAS in German.
For the previous image page, see CEZS in English, CGZS in German.
For the next image page, see CEBS in English, CGBS 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 CEAS

Title: Line elements, colour spaces, and colour thresholds;
Comparison of LABJND and CIELAB line elements.

1. Introduction and goals.
2. Line elements for achromatic colours;
3. Colour spaces and chromatic thresholds;
4. Relation of the laws of Weber-Fechner & Stevens.
5. LABJND-line elements according to CIE 230:219;
6. Comparison with CIELAB-line elements according to ISO/CIE 11664-4.
for further information and discussion, see CEAI.

The following ten pages CEA0 to CEA9 of this chapter
show the content with links to the single figures in up to six formats.


Figure CEA0L0N1.jpg: Output in format A6 of the file CEA0L0NP.PDF, see
CEA0L0N1. PS / TXT / PDF / jpg

CEA0: TUB-test chart CEA0; Colour threholds and colour spaces
Line elements of achromatic colours in black-
white direction for different applications



Figure CEA1L0N1.jpg: Output in format A6 of the file CEA1L0NP.PDF, see
CEA1L0N1. PS / TXT / PDF / jpg

CEA1: TUB-test chart CEA1; Colour threholds and colour spaces
Comparison of scaling, thresholds, and
contrast functions for different applications



Figure CEA2L0N1.jpg: Output in format A6 of the file CEA2L0NP.PDF, see
CEA2L0N1. PS / TXT / PDF / jpg

CEA2: TUB-test chart CEA2; Colour threholds and colour spaces
CIELAB and LABJND colour spaces, and colour differences
for different applications



Figure CEA3L0N1.jpg: Output in format A6 of the file CEA3L0NP.PDF, see
CEA3L0N1. PS / TXT / PDF / jpg

CEA3: TUB-test chart CEA3; Luminance discrimination
Model for achromatic adjacent samples
Relation of Weber-Fechner and Stevens law



Figure CEA4L0N1.jpg: Output in format A6 of the file CEA4L0NP.PDF, see
CEA4L0N1. PS / TXT / PDF / jpg

CEA4: TUB-test chart CEA4; Achromatic thresholds
Luminance thresholds, contrast, and lightness
Experimental data of Lingelbach and Richter



Figure CEA5L0N1.jpg: Output in format A6 of the file CEA5L0NP.PDF, see
CEA5L0N1. PS / TXT / PDF / jpg

CEA5: TUB-test chart CEA5; Threshold, contrast, and lightness
Lineelements, contrast, and lightness
of Weber-Fechner, Stiles, and Vos&Walraven



Figure CEA6L0N1.jpg: Output in format A6 of the file CEA6L0NP.PDF, see
CEA6L0N1. PS / TXT / PDF / jpg

CEA6: TUB-test chart CEA6; LABJND-line elements of CIE 230:2019
log[lightness L*, threshold delta Y
sensitivity (delta Y)/Y and contrast Y/(delta Y)]



Figure CEA7L0N1.jpg: Output in format A6 of the file CEA7L0NP.PDF, see
CEA7L0N1. PS / TXT / PDF / jpg

CEA7: TUB-test chart CEA7; CIELAB-line elements of ISO/CIE 11664-4
log[lightness L*, threshold delta Y
sensitivity (delta Y)/Y and contrast Y/(delta Y)]



Figure CEA8L0N1.jpg: Output in format A6 of the file CEA8L0NP.PDF, see
CEA8L0N1. PS / TXT / PDF / jpg

CEA8: TUB-test chart CEA8; LABJND-line elements of CIE 230:2019
Lightness L*, threshold delta Y
sensitivity (delta Y)/Y and contrast Y/(delta Y)



Figure CEA9L0N1.jpg: Output in format A6 of the file CEA9L0NP.PDF, see
CEA9L0N1. PS / TXT / PDF / jpg

CEA9: TUB-test chart CEA9; CIELAB-line elements of ISO/CIE 11664-4
Lightness L*, threshold delta Y
sensitivity (delta Y)/Y and contrast Y/(delta Y)

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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.