240901 1L2L0X0G_K2710.KTS/YExlGIN.KTS http://color.li.tu-berlin.de/gexs.htm or http://farbe.li.tu-berlin.de/gexs.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 gexs in English, ggxs in German.
For the previous image page, see gews in English, ggws in German.
For the next image page, see geys in English, ggys 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 gexs

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 gex0 to gex9 of this chapter
show the content with links to the single figures in up to six formats.


Figure gex0l0n1.jpg: Output in format A6 of the file gex0l0np.pdf, see
gex0l0n1. ps / txt / pdf / jpg

gex0: TUB-test chart gex0; 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 gex1l0n1.jpg: Output in format A6 of the file gex1l0np.pdf, see
gex1l0n1. ps / txt / pdf / jpg

gex1: TUB-test chart gex1; 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 gex2l0n1.jpg: Output in format A6 of the file gex2l0np.pdf, see
gex2l0n1. ps / txt / pdf / jpg

gex2: TUB-test chart gex2; 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 gex3l0n1.jpg: Output in format A6 of the file gex3l0np.pdf, see
gex3l0n1. ps / txt / pdf / jpg

gex3: TUB-test chart gex3;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 gex4l0n1.jpg: Output in format A6 of the file gex4l0np.pdf, see
gex4l0n1. ps / txt / pdf / jpg

gex4: TUB-test chart gex4; 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 gex5l0n1.jpg: Output in format A6 of the file gex5l0np.pdf, see
gex5l0n1. ps / txt / pdf / jpg

gex5: TUB-test chart gex5; 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 gex6l0n1.jpg: Output in format A6 of the file gex6l0np.pdf, see
gex6l0n1. ps / txt / pdf / jpg

gex6: TUB-test chart gex6; 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 gex7l0n1.jpg: Output in format A6 of the file gex7l0np.pdf, see
gex7l0n1. ps / txt / pdf / jpg

gex7: TUB-test chart gex7; 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 gex8l0n1.jpg: Output in format A6 of the file gex8l0np.pdf, see
gex8l0n1. ps / txt / pdf / jpg

gex8: TUB-test chart gex8; 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 gex9l0n1.jpg: Output in format A6 of the file gex9l0np.pdf, see
gex9l0n1. ps / txt / pdf / jpg

gex9: TUB-test chart gex9; 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.