240901 1L2L0X0G_K2710.KTS/YEolGIN.KTS http://color.li.tu-berlin.de/geos.htm or http://farbe.li.tu-berlin.de/geos.htm

For links to the Section 2, Chapter G Equally spaced colour scales for optimal colour-image quality (2025) , see
For this image page with 10 colour series, see geos in English, ggos in German.
For the previous image page, see gens in English, ggns in German.
For the next image page, see geps in English, ggps 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 (under work): 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 (2025), Image part geos

Title: Adjacent and separate grey samples for interval scaling;
Series N-W, and dark and light N-W scales;
Four surrounds mean Grey U=N08w, dark Grey D=N04w, light Grey H=N12w, and darker mean Grey d=N06w.
1. Introduction and goals.
2. Visual 3, 5 or 9-step intervall scaling;
3. Visual samples on surrounds U, D, H, and d;
4. Visual numeric specification and calculation of scaling with example.
5. Application for the linearisation of the scales with inverse functions.
Remark: For similar test charts see gels.htm.

The following ten pages geo0 to geo9 of this chapter
show the content with links to the single figures in up to six formats.


Figure geo0l0n1.jpg: Output in format A6 of the file geo0l0np.pdf, see
geo0l0n1. ps / txt / pdf / jpg

geo0: TUB-test chart geo0; Grey samples for intervall scaling
Grey scale of N-W=N00w-N16w=W with Gamma=1, 2, 0,5, and 1,5
with 3 or 5 or 9 steps; surrounds U=N08w, D=N04w, H=N12w, d=N06w



Figure geo1l0n1.jpg: Output in format A6 of the file geo1l0np.pdf, see
geo1l0n1. ps / txt / pdf / jpg

geo1: TUB-test chart geo1; Colour samples for intervall scaling
Grey scale of N-W=N00w-N16w=W with Gamma=1, 2, 0,5, and 1,5
with 3 or 5 or 9 steps; constant surround mean Grey U=N08w



Figure geo2l0n1.jpg: Output in format A6 of the file geo2l0np.pdf, see
geo2l0n1. ps / txt / pdf / jpg

geo2: TUB-test chart geo2; Colour samples for intervall scaling
Evaluation of N-W=N00w-N16w=W with Gamma=1,0, and 2,0
with 3 or 5 or 9 steps; surrounds U=N08w and D=N04w



Figure geo3l0n1.jpg: Output in format A6 of the file geo3l0np.pdf, see
geo3l0n1. ps / txt / pdf / jpg

geo3: TUB-test chart geo3;Colour samples for intervall scaling
Evaluation of N-W=N00w-N16w=W with Gamma=1,0, and 2,0
with 3 or 5 or 9 steps; constant surround U=N08w



Figure geo4l0n1.jpg: Output in format A6 of the file geo4l0np.pdf, see
geo4l0n1. ps / txt / pdf / jpg

geo4: TUB-test chart geo4; Colour samples for intervall scaling
Functions Gamma=1,0 and 2,0 for N-W=N00w-N16w=W
with 3 or 5 or 9 steps; surrounds U=N08w und D=N04w



Figure geo5l0n1.jpg: Output in format A6 of the file geo5l0np.pdf, see
geo5l0n1. ps / txt / pdf / jpg

geo5: TUB-test chart geo5; Colour samples for intervall scaling
Functions Gamma=1,0 and 0,5 for N-W=N00w-N16w=W
with 3 or 5 or 9 steps; surrounds U=N08w und D=N12w



Figure geo6l0n1.jpg: Output in format A6 of the file geo6l0np.pdf, see
geo6l0n1. ps / txt / pdf / jpg

geo6: TUB-test chart geo6; Colour samples for intervall scaling
Functions Gamma=1,0 and 1,5 for N-W=N00w-N16w=W
with 3 or 5 or 9 steps; surrounds U=N08w und D=N10w



Figure geo7l0n1.jpg: Output in format A6 of the file geo7l0np.pdf, see
geo7l0n1. ps / txt / pdf / jpg

geo7: TUB-test chart geo7; Colour samples for intervall scaling
Functions Gamma=1,0 and 2,0 for N-W=N00w-N16w=W
with 3 or 5 or 9 steps; constant surround U=N08w



Figure geo8l0n1.jpg: Output in format A6 of the file geo8l0np.pdf, see
geo8l0n1. ps / txt / pdf / jpg

geo8: TUB-test chart geo8; Colour samples for intervall scaling
Functions Gamma=1,0 and 0,5 for N-W=N00w-N16w=W
with 3 or 5 or 9 steps; constant surround U=N08w



Figure geo9l0n1.jpg: Output in format A6 of the file geo9l0np.pdf, see
geo9l0n1. ps / txt / pdf / jpg

geo9: TUB-test chart geo9; Colour samples for intervall scaling
Functions Gamma=1,0 and 1,5 for N-W=N00w-N16w=W
with 3 or 5 or 9 steps; constant surround U=N08w

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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.