240901 1L2L0X0G_K2710.KTS/YEplGIN.KTS http://color.li.tu-berlin.de/geps.htm or http://farbe.li.tu-berlin.de/geps.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 geps in English, ggps in German.
For the previous image page, see geos in English, ggos in German.
For the next image page, see geqs in English, ggqs 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 geps

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 gep0 to gep9 of this chapter
show the content with links to the single figures in up to six formats.


Figure gep0l0n1.jpg: Output in format A6 of the file gep0l0np.pdf, see
gep0l0n1. ps / txt / pdf / jpg

gep0: TUB-test chart gep0; 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 gep1l0n1.jpg: Output in format A6 of the file gep1l0np.pdf, see
gep1l0n1. ps / txt / pdf / jpg

gep1: TUB-test chart gep1; 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 gep2l0n1.jpg: Output in format A6 of the file gep2l0np.pdf, see
gep2l0n1. ps / txt / pdf / jpg

gep2: TUB-test chart gep2; 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 gep3l0n1.jpg: Output in format A6 of the file gep3l0np.pdf, see
gep3l0n1. ps / txt / pdf / jpg

gep3: TUB-test chart gep3;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 gep4l0n1.jpg: Output in format A6 of the file gep4l0np.pdf, see
gep4l0n1. ps / txt / pdf / jpg

gep4: TUB-test chart gep4; 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 gep5l0n1.jpg: Output in format A6 of the file gep5l0np.pdf, see
gep5l0n1. ps / txt / pdf / jpg

gep5: TUB-test chart gep5; 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 gep6l0n1.jpg: Output in format A6 of the file gep6l0np.pdf, see
gep6l0n1. ps / txt / pdf / jpg

gep6: TUB-test chart gep6; 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 gep7l0n1.jpg: Output in format A6 of the file gep7l0np.pdf, see
gep7l0n1. ps / txt / pdf / jpg

gep7: TUB-test chart gep7; 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 gep8l0n1.jpg: Output in format A6 of the file gep8l0np.pdf, see
gep8l0n1. ps / txt / pdf / jpg

gep8: TUB-test chart gep8; 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 gep9l0n1.jpg: Output in format A6 of the file gep9l0np.pdf, see
gep9l0n1. ps / txt / pdf / jpg

gep9: TUB-test chart gep9; 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

-------
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.