241201 1L2L0X0G_K2710.KTS/YEzlGIN.KTS http://color.li.tu-berlin.de/gezs.htm or http://farbe.li.tu-berlin.de/gezs.htm

For links to the Section 2, Chapter G Equally spaced colour scales for optimal colour-image quality (2024b) , see
For this image page with 10 colour series, see gezs in English, ggzs in German.
For the previous image page, see geys in English, ggys in German.
For the next image page, see geas in English, ggas in German.
For the first image page of the previous chapter F, see feas in English, fgas in German.
For the first image page of the next chapter H (under work), see heas in English, hgas in German.

Content list of chapter G: gea_i in English or gga_i in German.
Summary of chapter G: gea_s in English or gga_s in German.
For the large image page of chapter G with 260 colour series, see ge2s in English or gg2s in German.

Section 2, Chapter G
Equally spaced colour scales for optimal colour-image quality (2024b), Image part gezs

Title: Layout of images in TUB-test charts;
Example evaluation of Grey scales with 3, 5, and 9 samples
Colour samples and rgb values of the 1080 colours according to ISO 9241-306
Colour differences according to CIELAB and TUBsRGB as function of luminance
1. Introduction and goals.
2. Up to 16 images within a TUB-test chart;
3. Numbering, size, and layout of the images;
4. Example evaluation of Grey scales with 3, 5, and 9 samples;
5. Colour samples and rgb values of the 1080 colours according to ISO 9241-306;
6. Colour differences according to CIELAB and TUBsRGB as function of luminance;
7. Discussion of results.

The following ten pages gez0 to gez9 of this chapter
show the content with links to the single figures in up to six formats.


Figure gez0l0n1.jpg: Output in format A6 of the file gez0l0np.pdf, see
gez0l0n1. ps / txt / pdf / jpg

gez0: TUB-test chart gez0; Layout of test charts
Four single images (0/1)-(3/7)n per page
in the size 120mm x 85mm



Figure gez1l0n1.jpg: Output in format A6 of the file gez1l0np.pdf, see
gez1l0n1. ps / txt / pdf / jpg

gez1: TUB-test chart gez1; Adjacent grey samples
for visual interval scaling, example evaluation of the
grey series N-W, output (rgb*)^1,0, surround mean grey U=N08w



Figure gez2l0n1.jpg: Output in format A6 of the file gez2l0np.pdf, see
gez2l0n1. ps / txt / pdf / jpg

gez2: TUB-test chart gez2; Adjacent grey samples
for visual interval scaling, example evaluation of the
grey series N-W, output (rgb*)^0,5, surround mean grey U=N08w



Figure gez3l0n1.jpg: Output in format A6 of the file gez3l0np.pdf, see
gez3l0n1. ps / txt / pdf / jpg

gez3: TUB-test chart gez3; Layout of test charts
4 multi images (0/1)-(3/7)a in size 120mm x 85mm
16 sub images (0/1)-(1..8)a in size 60mm x 40mm



Figure gez4l0n1.jpg: Output in format A6 of the file gez4l0np.pdf, see
gez4l0n1. ps / txt / pdf / jpg

gez4: TUB-test chart gez4; Layout of test charts
4 multi images (0/1)-(3/7)a in size 120mm x 85mm
8 sub images (0/1)-(1/3/5/7)a in size 120mm x 40mm



Figure gez5l0n1.jpg: Output in format A6 of the file gez5l0np.pdf, see
gez5l0n1. ps / txt / pdf / jpg

gez5: TUB-test chart gez5; Layout of test charts
4 multi images (0/1)-(3/7)a in size 120mm x 85mm
8 sub images (0/1)-(3/4/7/8)a in size 60mm x 80mm



Figure gez6l0n1.jpg: Output in format A6 of the file gez6l0np.pdf, see
gez6l0n1. ps / txt / pdf / jpg

gez6: TUB-test chart gez6; 1080 colours according to ISO 9241-306
Output lightness L*(TUBLOG,U) of the 9 and 16 step grey scales
Lightness L*(TUBLOG,U) = [50/log(5)] log(Y/Yu) + 50



Figure gez7l0n1.jpg: Output in format A6 of the file gez7l0np.pdf, see
gez7l0n1. ps / txt / pdf / jpg

gez7: TUB-test chart gez6; 1080 colours according to ISO 9241-306
Output of the position and the rgb values of the 1080 colours
Lightness L*(TUBLOG,U) = [50/log(5)] log(Y/Yu) + 50



Figure gez8l0n1.jpg: Output in format A6 of the file gez8l0np.pdf, see
gez8l0n1. ps / txt / pdf / jpg

gez8: TUB-test chart gez8; Test layout: Colour and luminance
Colour difference as function of the relative luminance
[threshold deltaY, sensitivity deltaY/Y, contrast Y/deltaY]



Figure gez9l0n1.jpg: Output in format A6 of the file gez9l0np.pdf, see
gez9l0n1. ps / txt / pdf / jpg

gez9: TUB-test chart gez9; CIELAB & TUBsRGB colour difference
see ISO/CIE 11664-4 & TUBsRGB, ln, log and lin[lightness L*,
threshold deltaY, sensitivity deltaY/Y, contrast Y/deltaY]

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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.