240215 1L2L0X0B_S2710.KTS/YEYLBIN.KTS, http://farbe.li.tu-berlin.de/BEYS.HTM or http://color.li.tu-berlin.de/BEYS.HTM

For links to the Section 2, Chapter B Colour Vision and Colourimetry (2020), see
For this image page with 10 colour series, see BEYS in English, BGYS in German.
For the previous image page, see BEXS in English, BGXS in German.
For the next image page, see BEZS in English, BGZS in German.
For the first image page of the previous chapter A, see AEAS in English, AGAS in German.
For the first image page of the next chapter C, see CEAS in English, CGAS in German.

Content list of chapter B: BEA_I in English or BGA_I in German.
Summary of chapter B: BEA_S in English or BGA_S in German.
For the large image page of chapter B with 260 colour series, see be2s in English or bg2s in German.

Section 2, Chapter B
Colour vision and Colorimetry (2020), Image part BEYS

Title: Colour thresholds and line elements in 10 colour spaces CIELABu0 to 9
1. Introduction and goals;
2. Modifications CIELABu0 to 9 of the colour space CIELAB;
3. Corresponding line elements for the experimental contrast Y/(delta Y);
4. Absolute lightness L* (CIE 15) and T* (ISO/CIE 11664-4 (CIELAB)) 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 of the formula T*=Sn(Y/Yu)^(1/g)-Sd with Yu=18,
for exaample Sn=66, 1/g=1/3,0, Sd=16.

The following ten pages BEY0 to BEY9 of this chapter
show the content with links to the single figures in up to six formats.


Figure BEY0L0N1.jpg: Output in format A6 of the file BEY0L0NP.PDF, see
BEY0L0N1. PS / TXT / PDF / jpg

BEY0: TUB-test chart BEY0; Colour-difference formulae t* & T*
CIELABu0 colour-lightness formulae for (Y/Yn)
absolute and relative lightness, sensitivity and contrast



Figure BEY1L0N1.jpg: Output in format A6 of the file BEY1L0NP.PDF, see
BEY1L0N1. PS / TXT / PDF / jpg

BEY1: TUB-test chart BEY1; Colour-difference formulae t* & T*
CIELABu1 colour-lightness formulae for (Y/Yn)
absolute and relative lightness, sensitivity and contrast



Figure BEY2L0N1.jpg: Output in format A6 of the file BEY2L0NP.PDF, see
BEY2L0N1. PS / TXT / PDF / jpg

BEY2: TUB-test chart BEY2; Colour-difference formulae t* & T*
CIELABu2 triangle-lightness formulae for (Y/Yn)
absolute and relative lightness, sensitivity and contrast



Figure BEY3L0N1.jpg: Output in format A6 of the file BEY3L0NP.PDF, see
BEY3L0N1. PS / TXT / PDF / jpg

BEY3: TUB-test chart BEY3; Colour-difference formulae t* & T*
CIELABu3 triangle-lightness formulae for (Y/Yn)
absolute and relative lightness, sensitivity and contrast



Figure BEY4L0N1.jpg: Output in format A6 of the file BEY4L0NP.PDF, see
BEY4L0N1. PS / TXT / PDF / jpg

BEY4: TUB-test chart BEY4; Colour-difference formulae t* & T*
CIELABu4 triangle-lightness formulae for (Y/Yn)
absolute and relative lightness, sensitivity and contrast



Figure BEY5L0N1.jpg: Output in format A6 of the file BEY5L0NP.PDF, see
BEY5L0N1. PS / TXT / PDF / jpg

BEY5: TUB-test chart BEY5; Colour-difference formulae t* & T*
CIELABu5 triangle-lightness formulae for (Y/Yn)
absolute and relative lightness, sensitivity and contrast



Figure BEY6L0N1.jpg: Output in format A6 of the file BEY6L0NP.PDF, see
BEY6L0N1. PS / TXT / PDF / jpg

BEY6: TUB-test chart BEY6; Colour-difference formulae t* & T*
CIELABu6 triangle-lightness formulae for (Y/Yn)
absolute and relative lightness, sensitivity and contrast



Figure BEY7L0N1.jpg: Output in format A6 of the file BEY7L0NP.PDF, see
BEY7L0N1. PS / TXT / PDF / jpg

BEY7: TUB-test chart BEY7; Colour-difference formulae t* & T*
CIELABu7 triangle-lightness formulae for (Y/Yn)
absolute and relative lightness, sensitivity and contrast



Figure BEY8L0N1.jpg: Output in format A6 of the file BEY8L0NP.PDF, see
BEY8L0N1. PS / TXT / PDF / jpg

BEY8: TUB-test chart BEY8; Colour-difference formulae t* & T*
CIELABu8 triangle-lightness formulae for (Y/Yn)
absolute and relative lightness, sensitivity and contrast



Figure BEY9L0N1.jpg: Output in format A6 of the file BEY9L0NP.PDF, see
BEY9L0N1. PS / TXT / PDF / jpg

BEY9: TUB-test chart BEY9; Colour-difference formulae t* & T*
CIELABu9 triangle-lightness formulae for (Y/Yn)
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.