240215 1L2L0X0F_K2710.KTS/YEalEIN.KTS, http://farbe.li.tu-berlin.de/eeas.htm or http://color.li.tu-berlin.de/eeas.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 eeas in English, egas in German.
For the previous image page, see eezs in English, egzs in German.
For the next image page, see eebs in English, egbs 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 eeas

Title: Line elements of higher colourimetry;
CIELAB, LABJND, TUBJND, CIEDE2000, see CIE 230:2019;
regularity index according to ISO/IEC 15775:2022;
lightness, Y difference, sensitivity and contrast;
relative lightness as basis for grey scaling
1. Introduction and goals.
2. Line elements of higher colourimetry;
CIELAB, LABJND, TUBJND, CIEDE2000, see CIE 230:2019.
3. Regularity index g* according to ISO/IEC 15775:2022, Annex G.
4. Relative lightness L*/L*u.
5. Relative Y difference delta_Y/delta_Yu.
6. Relative sensitivity (delta_Y/Y)/(delta_Yu/Yu).
7. Relative contrast (Y/delta_Y)/(Yu/delta_Yu).
8. Discussion of results for colour vision.
for further information and discussion, see eeai.

The following ten pages eea0 to eea9 of this chapter
show the content with links to the single figures in up to six formats.


Figure eea0l0n1.jpg: Output in format A6 of the file eea0l0np.pdf, see
eea0l0n1. ps / txt / pdf / jpg

eea0: TUB-test chart eea0; Line elements of higher colorimetry
CIELAB, LABJND, TUBJND, CIEDE200, see CIE 230:2019
Relative lightness L*/L*u as bais for the grey scaling



Figure eea1l0n1.jpg: Output in format A6 of the file eea1l0np.pdf, see
eea1l0n1. ps / txt / pdf / jpg

eea1: TUB-test chart eea1; Line elements of higher colorimetry
CIELAB, LABJND, TUBJND, CIEDE2000 and others
Regularity index according to ISO/IEC 15775 for the grey scaling



Figure eea2l0n1.jpg: Output in format A6 of the file eea2l0np.pdf, see
eea2l0n1. ps / txt / pdf / jpg

eea2: TUB-test chart eea2; Colourimetric data
log[L*/L*u, dY/dYu, (dY/Y)/(dYu/Yu), (Y/dY)/(Yu/dYu)]
= f[log(Y)] of the colour spaces CIELAB & TUBJND, see CIE 230



Figure eea3l0n1.jpg: Output in format A6 of the file eea3l0np.pdf, see
eea3l0n1. ps / txt / pdf / jpg

eea3: TUB-test chart eea3; Colourimetric data
log[L*/L*u, dY/dYu, (dY/Y)/(dYu/Yu), (Y/dY)/(Yu/dYu)]
= f(Y) of the colour spaces CIELAB & TUBJND, see CIE 230



Figure eea4l0n1.jpg: Output in format A6 of the file eea4l0np.pdf, see
eea4l0n1. ps / txt / pdf / jpg

eea4: TUB-test chart eea4; Colourimetric data
L*/L*u, dY/dYu, (dY/Y)/(dYu/Yu), (Y/dY)/(Yu/dYu)
= f[log(Y)] of the colour spaces CIELAB & TUBJND, see CIE 230



Figure eea5l0n1.jpg: Output in format A6 of the file eea5l0np.pdf, see
eea5l0n1. ps / txt / pdf / jpg

eea5: TUB-test chart eea5; Colourimetric data
L*/L*u, dY/dYu, (dY/Y)/(dYu/Yu), (Y/dY)/(Yu/dYu)
= f(Y) of the colour spaces CIELAB & TUBJND, see CIE 230



Figure eea6l0n1.jpg: Output in format A6 of the file eea6l0np.pdf, see
eea6l0n1. ps / txt / pdf / jpg

eea6: TUB-test chart eea6; TUBJND-colour space & differences
log[lightness L*, threshold delta Y, sensitivity
(delta Y)/Y & contrast Y/(delta Y)]=f[log(Y)]



Figure eea7l0n1.jpg: Output in format A6 of the file eea7l0np.pdf, see
eea7l0n1. ps / txt / pdf / jpg

eea7: TUB-test chart eea7; CIELAB-colour space & differences
log[lightness L*, threshold delta Y, sensitivity
(delta Y)/Y & contrast Y/(delta Y)]=f[log(Y)]



Figure eea8l0n1.jpg: Output in format A6 of the file eea8l0np.pdf, see
eea8l0n1. ps / txt / pdf / jpg

eea8: TUB-test chart eea8; TUBJND-colour space & differences
lightness L*, threshold delta Y, sensitivity
(delta Y)/Y & contrast Y/(delta Y)=f[log(Y)]



Figure eea9l0n1.jpg: Output in format A6 of the file eea9l0np.pdf, see
eea9l0n1. ps / txt / pdf / jpg

eea9: TUB-test chart eea9; CIELAB-colour space & differences
lightness L*, threshold delta Y, sensitivity
(delta Y)/Y & contrast Y/(delta Y)=f[log(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.