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

For links to the Section 2, Chapter B Colour Vision and Colourimetry (2020), see
For this image page with 10 colour series, see BECS in English, BGCS in German.
For the previous image page, see BEBS in English, BGBS in German.
For the next image page, see BEDS in English, BGDS 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 BECS

Title: Ostwald-optimal colours for the CIE-02-degree observer;
for 8 Planck-illuminants Pxx, and for 8 daylight illuminants Dxx;
for complementary optimal colours of antagonistic tristimulues values X, Y, Z, and
Xw-X, Yw-Y, Zw-Z in the CIE chromaticity diagram (x, y);
for four contrast steps C=25:1, 10:1, 4:1, and 2:1
1. Introduction and goals.
2. Location of complementary Ostwald-optimal colours in the CIE (x, y) chromaticity diagram.
2. Approximately equal chromatic values CAB2 for all Ostwald-optimal colours.
3. Decreasing of chromaticity difference between colour and white
for any of the four contrast steps C=25:1, 10:1, 4:1, and 2:1.
4. Change of the triangle location in (x, y) to a circular location
in the chromatic value diagrams (A2, B2) for any of the four contrast steps C and discussion.

The following ten pages BEC0 to BEC9 of this chapter
show the content with links to the single figures in up to six formats.


Figure BEC0L0N1.jpg: Output in format A6 of the file BEC0L0NP.PDF, see
BEC0L0N1. PS / TXT / PDF / jpg

BEC0: TUB-test chart BEC0; 6 Ostwald optimal colours
for 8 illuminants Pxx, CIE-02-degree observer, chromaticity
diagram (x, y), C>=288:1



Figure BEC1L0N1.jpg: Output in format A6 of the file BEC1L0NP.PDF, see
BEC1L0N1. PS / TXT / PDF / jpg

BEC1: TUB-test chart BEC1; 6 Ostwald optimal colours
for 8 illuminants Pxx, CIE-02-degree observer, chromaticity
diagram (x, y), C=25:1



Figure BEC2L0N1.jpg: Output in format A6 of the file BEC2L0NP.PDF, see
BEC2L0N1. PS / TXT / PDF / jpg

BEC2: TUB-test chart BEC2; 6 Ostwald optimal colours
for 8 illuminants Pxx, CIE-02-degree observer, chromaticity
diagram (x, y), contrast C=10:1



Figure BEC3L0N1.jpg: Output in format A6 of the file BEC3L0NP.PDF, see
BEC3L0N1. PS / TXT / PDF / jpg

BEC3: TUB-test chart BEC3; 6 Ostwald optimal colours
for 8 illuminants Pxx, CIE-02-degree observer, chromaticity
diagram (x, y), contrast C=4:1



Figure BEC4L0N1.jpg: Output in format A6 of the file BEC4L0NP.PDF, see
BEC4L0N1. PS / TXT / PDF / jpg

BEC4: TUB-test chart BEC4; 6 Ostwald optimal colours
for 8 illuminants Pxx, CIE-02-degree observer, chromaticity
diagram (x, y), contrast C=2:1



Figure BEC5L0N1.jpg: Output in format A6 of the file BEC5L0NP.PDF, see
BEC5L0N1. PS / TXT / PDF / jpg

BEC5: TUB-test chart BEC5; 6 Ostwald optimal colours
for 8 illuminants Dxx, CIE-02-degree observer, chromaticity
diagram (x, y), contrast C>=288:1



Figure BEC6L0N1.jpg: Output in format A6 of the file BEC6L0NP.PDF, see
BEC6L0N1. PS / TXT / PDF / jpg

BEC6: TUB-test chart BEC6; 6 Ostwald optimal colours
for 8 illuminants Dxx, CIE-02-degree observer, chromaticity
diagram (x, y), contrast C=25:1



Figure BEC7L0N1.jpg: Output in format A6 of the file BEC7L0NP.PDF, see
BEC7L0N1. PS / TXT / PDF / jpg

BEC7: TUB-test chart BEC7; 6 Ostwald optimal colours
for 8 illuminants Dxx, CIE-02-degree observer, chromaticity
diagram (x, y), contrast C=10:1



Figure BEC8L0N1.jpg: Output in format A6 of the file BEC8L0NP.PDF, see
BEC8L0N1. PS / TXT / PDF / jpg

BEC8: TUB-test chart BEC8; 6 Ostwald optimal colours
for 8 illuminants Dxx, CIE-02-degree observer, chromaticity
diagram (x, y), contrast C=4:1



Figure BEC9L0N1.jpg: Output in format A6 of the file BEC9L0NP.PDF, see
BEC9L0N1. PS / TXT / PDF / jpg

BEC9: TUB-test chart BEC9; 6 Ostwald optimal colours
for 8 illuminants Dxx, CIE-02-degree observer, chromaticity
diagram (x, y), contrast C=2:1

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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.