260723 1L2L0X0K_K2710.KTS/YELINKIN.KTS http://color.li.tu-berlin.de/kebs.htm or http://farbe.li.tu-berlin.de/kebs.htm

260327 YELINKIN.KTS
For links to the Section 2, Chapter K Visual experimental data for scaling and thresholds (2026b) , under work, see
For this image page with 10 colour series, see kebs in English, kgbs in German.
For the previous image page, see keas in English, kgas in German.
For the next image page, see kecs in English, kgcs in German.
For the first image page of the previous chapter J (2026), see jeas in English, jgas in German.
For the first image page of the next chapter L (under work, 2027), see leas in English, lgas in German.

Content list of chapter K (2026b): kea_i in English or kga_i in German.
Up to now no summary of chapter k is available, see publications XY91FEN in English or XY91FDE in German.
For the large image page of chapter K with 260 colour series, see ke2s in English or kg2s in German.
For the same content as pdf file (attention about 100 MB, 260 pages), see ke2s.pdf in English or kg2s.pdf in German.

Section 2, Chapter K
Visual experimental data for scaling and thresholds (2026b),
under work, Image part kebs

Title: Comparison of the colour-difference formulae
CIELAB, CIEDE2000, and LABJND (CIE 230:2019);
Description of lightness L*, threshold delta_Y,
sensitivity Y/delta_Y, and contrast Y/delta_Y;
Opposite output quality with colour difference and
regularity according to ISO/IEC 15775;
Output of the ISO-colour test charts for visual
and rgb* correction on the graphic card with sofware.
1. Introduction and goals.
2. Comparison of the colour-difference formulae.
CIELAB, CIEDE2000, and LABJND.
3. Description of lightness L*, threshold delta_Y,
sensitivity Y/delta_Y, and contrast Y/delta_Y.
4. All terms as relative, linear, and logarithmic function of log(Y).
5. Instead of colour difference the regularity according to
ISO/IEC 15775 is the appropriate quality;
6. Output of the ISO-colour test charts for visual
and rgb* correction on the graphic card with sofware.
7. Discussion.

The following ten pages keb0 to keb9 of this chapter
show the content with links to the single figures in up to six formats.


Figure keb0l0n1.jpg: Output in format A6 of the file keb0l0np.pdf, see
keb0l0n1. ps / txt / pdf / jpg

keb0: TUB-test chart keb0; Relative (r) LABJNDr and the
CIEDE2000r colour difference formula; log[lightness L*,
threshold delta_Y, sensitivity delta_Y/Y, contrast Y/delta_Y]



Figure keb1l0n1.jpg: Output in format A6 of the file keb1l0np.pdf, see
keb1l0n1. ps / txt / pdf / jpg

keb1: TUB-test chart keb1; Relative (r) CIELABr and the
CIEDE2000r colour difference formula; log[lightness L*,
threshold delta_Y, sensitivity delta_Y/Y, contrast Y/delta_Y]



Figure keb2l0n1.jpg: Output in format A6 of the file keb2l0np.pdf, see
keb2l0n1. ps / txt / pdf / jpg

keb2: TUB-test chart keb2; Relative (r) LABJNDr and the
CIEDE2000r colour difference formula; lin[lightness L*,
threshold delta_Y, sensitivity delta_Y/Y, contrast Y/delta_Y]



Figure keb3l0n1.jpg: Output in format A6 of the file keb3l0np.pdf, see
keb3l0n1. ps / txt / pdf / jpg

keb3: TUB-test chart keb3; Relative (r) CIELABr and the
CIEDE2000r colour difference formula; lin[lightness L*,
threshold delta_Y, sensitivity delta_Y/Y, contrast Y/delta_Y]



Figure keb4l0n1.jpg: Output in format A6 of the file keb4l0np.pdf, see
keb4l0n1. ps / txt / pdf / jpg

keb4: TUB-test chart keb4; Comparison of the LABJND and
the CIEDE2000 colour difference formula; log[lightness L*,
threshold delta_Y, sensitivity delta_Y/Y, contrast Y/delta_Y]



Figure keb5l0n1.jpg: Output in format A6 of the file keb5l0np.pdf, see
keb5l0n1. ps / txt / pdf / jpg

keb5: TUB-test chart keb5; Comparison of the CIELAB and
the CIEDE2000 colour difference formula; log[lightness L*,
threshold delta_Y, sensitivity delta_Y/Y, contrast Y/delta_Y]



Figure keb6l0n1.jpg: Output in format A6 of the file keb6l0np.pdf, see
keb6l0n1. ps / txt / pdf / jpg

keb6: TUB-test chart keb6; Comparison of the LABJND and
the CIEDE2000 colour difference formula; lin[lightness L*,
threshold delta_Y, sensitivity delta_Y/Y, contrast Y/delta_Y]



Figure keb7l0n1.jpg: Output in format A6 of the file keb7l0np.pdf, see
keb7l0n1. ps / txt / pdf / jpg

keb7: TUB-test chart keb7; Comparison of the CIELAB and
the CIEDE2000 colour difference formula; lin[lightness L*,
threshold delta_Y, sensitivity delta_Y/Y, contrast Y/delta_Y]



Figure keb8l0n1.jpg: Output in format A6 of the file keb8l0np.pdf, see
keb8l0n1. ps / txt / pdf / jpg

keb8: TUB-test chart keb8; Opposite quality by ISO Regularity
and ISO Colour difference. Examples show that ISO Regularity
is the appropriate quality according to ISO/IEC 15775



Figure keb9l0n1.jpg: Output in format A6 of the file keb9l0np.pdf, see
keb9l0n1. ps / txt / pdf / jpg

keb9: TUB-test chart keb9; TUB-colour-space model with antagonistic
coordinates. Output of ISO-colour-test charts for visual
and rgb* correction on the graphic card by software

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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.