240215 1L2L0X0C_S2710.KTS/YESLCIN.KTS, http://farbe.li.tu-berlin.de/CESS.HTM or http://color.li.tu-berlin.de/CESS.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 CESS in English, CGSS in German.
For the previous image page, see CERS in English, CGRS in German.
For the next image page, see CETS in English, CGTS 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 CESS

Title: Special properties of colour vision;
Lightness, threshold, sensitivity and contrast functions

1. Introduction and goals.
2. Basic functions for visual thresholds and attributes;
3. Logarithmic and linear functions of colour vision attributes;
3. CIELAB, CIEDE2000, and LABJND colour-difference formulae;
4. Comparison results of the different formulae;
5. Short time and long time viewing of colour samples.

The following ten pages CES0 to CES9 of this chapter
show the content with links to the single figures in up to six formats.


Figure CES0L0N1.jpg: Output in format A6 of the file CES0L0NP.PDF, see
CES0L0N1. PS / TXT / PDF / jpg

CES0: TUB-test chart CES0; Special properties of colour vision,
Comparison of CIELAB and IECsRGB coordinates,
Lightness & triangle lightness, contrast and sensitivity



Figure CES1L0N1.jpg: Output in format A6 of the file CES1L0NP.PDF, see
CES1L0N1. PS / TXT / PDF / jpg

CES1: TUB-test chart CES1; Special properties of colour vision,
CIELAB modifications with chromaticity diagrams,
Achromatic and chromatic thresholds as function of Y



Figure CES2L0N1.jpg: Output in format A6 of the file CES2L0NP.PDF, see
CES2L0N1. PS / TXT / PDF / jpg

CES2: TUB-test chart CES2; Special properties of colour vision,
Elementary colours, complementary wavelength,
CIELAB equation and modifications from Yn to Yu



Figure CES3L0N1.jpg: Output in format A6 of the file CES3L0NP.PDF, see
CES3L0N1. PS / TXT / PDF / jpg

CES3: TUB-Test chart CES3; Comparison of LABJND & CIELAB formula,
CIE lightness L*, derivation dL*/dY, and threshold dY,
CIE sensitivity dY/Y and CIE contrast Y/dY



Figure CES4L0N1.jpg: Output in format A6 of the file CES4L0NP.PDF, see
CES4L0N1. PS / TXT / PDF / jpg

CES4: TUB-Test chart CES4; Comparison of LABJND & CIEDE2000 formula
CIE lightness L*, derivation dL*/dY, and threshold dY,
CIE sensitivity dY/Y and CIE contrast Y/dY



Figure CES5L0N1.jpg: Output in format A6 of the file CES5L0NP.PDF, see
CES5L0N1. PS / TXT / PDF / jpg

CES5: TUB-Test chart CES5; Achromatic thresholds,
luminance thresholds, contrast, and lightness,
experimental data of Lingelbach and Richter



Figure CES6L0N1.jpg: Output in format A6 of the file CES6L0NP.PDF, see
CES6L0N1. PS / TXT / PDF / jpg

CES6: TUB-Test chart CES6; LABJND colour differences, CIE 230:2019,
logarithmic ordinate for LABJND lightness L*,
derivation dL*/dY, sensitivity dY/Y, and contrast Y/dY



Figure CES7L0N1.jpg: Output in format A6 of the file CES7L0NP.PDF, see
CES7L0N1. PS / TXT / PDF / jpg

CES7: TUB-Test chart CES7; CIELAB colour differences, ISO/CIE 11664-4,
logarithmic ordinate for CIELAB lightness L*,
derivation dL*/dY, sensitivity dY/Y, and contrast Y/dY



Figure CES8L0N1.jpg: Output in format A6 of the file CES8L0NP.PDF, see
CES8L0N1. PS / TXT / PDF / jpg

CES8: TUB-Test chart CES8; LABJND colour differences, CIE 230:2019,
linear ordinate for LABJND lightness L*,
derivation dL*/dY, sensitivity dY/Y, and contrast Y/dY



Figure CES9L0N1.jpg: Output in format A6 of the file CES9L0NP.PDF, see
CES9L0N1. PS / TXT / PDF / jpg

CES9: TUB-Test chart CES9; CIELAB colour differences, ISO/CIE 11664-4,
linear ordinate for CIELAB lightness L*,
derivation dL*/dY, sensitivity dY/Y, and contrast Y/dY

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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.