240215 1L2L0X0F_K2710.KTS/YEelEIN.KTS, http://farbe.li.tu-berlin.de/eees.htm or http://color.li.tu-berlin.de/eees.htm

For links to the Section 2, Chapter E Colour Metrics, Differences, and Appearance (2023), see
For this image page with 10 colour series, see eees in English, eges in German.
For the previous image page, see eeds in English, egds in German.
For the next image page, see eefs in English, egfs in German.
For the first image page of the previous chapter D, see DEAS in English, DGAS in German.
For the first image page of the next chapter F (under work), see feas in English, fgas in German.

Content list of chapter E: eea_i in English or ega_i in German.
Summary of chapter E: eea_s in English or ega_s in German.
For the large image page of chapter E with 260 colour series, see ee2s in English or eg2s in German.

Section 2, Chapter E
Colour Metrics, Differences, and Appearance (2023), Image part eees

Title: Relative logarithmic colorimetric variables as logarithmic and linear function of Y;
lightness, Y-differenz, sensitivity and contrast; colour spaces CIELAB and TUBJND, see CIE 230

1. Introduction and goals.
2. Equally spaced grey series 1,8 < Y < 180 for 4 display reflections;
Yref=1,8, 3,6, 7,2 and 14,4 with regularity index;
g* according to ISO/IEC 15775:2022.
3. Relative lightness L*/L*u.
4. Relative Y-differenz delta_Y/delta_Yu.
5. Relative sensitivity (delta_Y/Y)/(delta_Yu/Yu).
6. Relative contrast (Y/delta_Y)/(Yu/delta_Yu).
7. Discussion of results for colour vision.

The following ten pages eee0 to eee9 of this chapter
show the content with links to the single figures in up to six formats.


Figure eee0l0n1.jpg: Output in format A6 of the file eee0l0np.pdf, see
eee0l0n1. ps / txt / pdf / jpg

eee0: TUB-test chart eee0; Equally spaced 9 step grey scales
for four display reflections Yref=0,4, 90,0, 1,8, 3,6
L*N=22,3 or YN=1,8 and L*W=96 or YW=90, normalisation: white W



Figure eee1l0n1.jpg: Output in format A6 of the file eee1l0np.pdf, see
eee1l0n1. ps / txt / pdf / jpg

eee1: TUB-test chart eee1; Equally spaced 9 step grey scales
for four display reflections Yref=0,4, 90, 1,8, 3,6
L*N=22,3 or YN=1,8 and L*W=96 or YW=90, normalisation: grey U



Figure eee2l0n1.jpg: Output in format A6 of the file eee2l0np.pdf, see
eee2l0n1. ps / txt / pdf / jpg

eee2: TUB-test chart eee2; Relative lightness log[L*/L*u]
= f[log(Y)] of colour spaces CIELAB & TUBJND,
see ISO/CIE 11664-4 & CIE 230, many and less information



Figure eee3l0n1.jpg: Output in format A6 of the file eee3l0np.pdf, see
eee3l0n1. ps / txt / pdf / jpg

eee3: TUB-test chart eee3; Relative lightness log[L*/L*u]
= f(Y) of colour spaces CIELAB & TUBJND,
see ISO/CIE 11664-4 & CIE 230, many and less information



Figure eee4l0n1.jpg: Output in format A6 of the file eee4l0np.pdf, see
eee4l0n1. ps / txt / pdf / jpg

eee4: TUB-test chart eee4; CIE-Y difference log[delY/delYu]
= f[log(Y)] of colour spaces CIELAB & TUBJND,
see ISO/CIE 11664-4 & CIE 230, many and less information



Figure eee5l0n1.jpg: Output in format A6 of the file eee5l0np.pdf, see
eee5l0n1. ps / txt / pdf / jpg

eee5: TUB-test chart eee5; CIE-Y difference log[delY/delYu]
= f(Y) of colour spaces CIELAB & TUBJND,
see ISO/CIE 11664-4 & CIE 230, many and less information



Figure eee6l0n1.jpg: Output in format A6 of the file eee6l0np.pdf, see
eee6l0n1. ps / txt / pdf / jpg

eee6: TUB-test chart eee6; Sensitivity log[(delY/Y)/(delYu/Yu)]
= f[log(Y)] of colour spaces CIELAB & TUBJND,
see ISO/CIE 11664-4 & CIE 230, many and less information



Figure eee7l0n1.jpg: Output in format A6 of the file eee7l0np.pdf, see
eee7l0n1. ps / txt / pdf / jpg

eee7: TUB-test chart eee7; Sensitivity log[(delY/Y)/(delYu/Yu)]
= f(Y) of colour spaces CIELAB & TUBJND,
see ISO/CIE 11664-4 & CIE 230, many and less information



Figure eee8l0n1.jpg: Output in format A6 of the file eee8l0np.pdf, see
eee8l0n1. ps / txt / pdf / jpg

eee8: TUB-test chart eee8; Contrast log[(Y/delY)/(Yu/delYu)]
= f[log(Y)] of colour spaces CIELAB & TUBJND,
see ISO/CIE 11664-4 & CIE 230, many and less information



Figure eee9l0n1.jpg: Output in format A6 of the file eee9l0np.pdf, see
eee9l0n1. ps / txt / pdf / jpg

eee9: TUB-test chart eee9; Contrast log[(Y/delY)/(Yu/delYu)]
= f(Y) of colour spaces CIELAB & TUBJND,
see ISO/CIE 11664-4 & CIE 230, many and less information

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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.