250201 1L2L0X0I_K2710.KTS/YEclHIN.KTS http://color.li.tu-berlin.de/iecs.htm or http://farbe.li.tu-berlin.de/iecs.htm

For links to the Section 2, Chapter I Output linearization of visual data for scaling and thresholds (2025b) , under work, see
For this image page with 10 colour series, see iecs in English, igcs in German.
For the previous image page, see iebs in English, igbs in German.
For the next image page, see ieds in English, igds in German.
For the first image page of the previous chapter G, see heas in English, hgas in German.
For the first image page of the next chapter I (under work), see jeas in English, jgas in German.

Content list of chapter I (under work): iea_i in English or iga_i in German.
Summary of chapter I: iea_s in English or iga_s in German.
For the large image page of chapter I with 260 colour series, see ie2s in English or ig2s in German.

Section 2, Chapter I
Output linearization of visual data for scaling and thresholds (2025b), Image part iecs

Title: Equally spaced 9 step grey scales according to CIELAB,W for four display reflections
Yref=4, 2, 1, (100 or 110 or 120 or 200 or 60) on ten pages
1. Introduction and goals.
2. Five lightness and tristimulus value ranges between black N and white W.
3. delta L*N to L*W: 23,7_100, 22,4_103,7, 21,3_107,3, 15,5_130,1, 31_81,8.
4. delta YN to YW: 4_100, 3,6_110, 3,3_120, 2_200, 6,7_60.
5. Contrast YW:YN: 25:1, 30:1, 36:1, 100:1, 9:1.
6. with regularity index g* according to ISO/IEC 15775:2022, annex G.
7. Discussion of gamma values for different ranges.

The following ten pages iec0 to iec9 of this chapter
show the content with links to the single figures in up to six formats.


Figure iec0l0n1.jpg: Output in format A6 of the file iec0l0np.pdf, see
iec0l0n1. ps / txt / pdf / jpg

iec0: TUB-test chart iec0; CIELAB spaced 9 step grey scales
for four display reflections Yref=4, 1, 2, 100
L*N=23,7 or YN=4 and L*W=100 or YW=100, normalisation: white W



Figure iec1l0n1.jpg: Output in format A6 of the file iec1l0np.pdf, see
iec1l0n1. ps / txt / pdf / jpg

iec1: TUB-test chart iec1; CIELAB spaced 9 step grey scales
for four display reflections Yref=4, 1, 2, 100
L*N=23,7 or YN=4 and L*W=100 or YW=100, normalisation: grey U



Figure iec2l0n1.jpg: Output in format A6 of the file iec2l0np.pdf, see
iec2l0n1. ps / txt / pdf / jpg

iec2: TUB-test chart iec2; CIELAB spaced 9 step grey scales
for four display reflections Yref=4, 1, 2, 110
L*N=22,4 or YN=3,6 and L*W=103,7 or YW=110, normalisation: W



Figure iec3l0n1.jpg: Output in format A6 of the file iec3l0np.pdf, see
iec3l0n1. ps / txt / pdf / jpg

iec3: TUB-test chart iec3; CIELAB spaced 9 step grey scales
for four display reflections Yref=4, 1, 2, 110
L*N=22,4 or YN=3,6 and L*W=103,7 or YW=110, normalisation: U



Figure iec4l0n1.jpg: Output in format A6 of the file iec4l0np.pdf, see
iec4l0n1. ps / txt / pdf / jpg

iec4: TUB-test chart iec4; CIELAB spaced 9 step grey scales
for four display reflections Yref=4, 1, 2, 120
L*N=21,3 or YN=3,3, L*W=107,3 or YW=120, normalisation: white W



Figure iec5l0n1.jpg: Output in format A6 of the file iec5l0np.pdf, see
iec5l0n1. ps / txt / pdf / jpg

iec5: TUB-test chart iec5; CIELAB spaced 9 step grey scales
for four display reflections Yref=4, 1, 2, 120
L*N=21,3 or YN=3,3, L*W=107,3 or YW=120, normalisation: grey U



Figure iec6l0n1.jpg: Output in format A6 of the file iec6l0np.pdf, see
iec6l0n1. ps / txt / pdf / jpg

iec6: TUB-test chart iec6; CIELAB spaced 9 step grey scales
for four display reflections Yref=4, 1, 2, 200
L*N=15,5 or YN=2 and L*W=130,1 or YW=200, normalisation: white W



Figure iec7l0n1.jpg: Output in format A6 of the file iec7l0np.pdf, see
iec7l0n1. ps / txt / pdf / jpg

iec7: TUB-test chart iec7; CIELAB spaced 9 step grey scales
for four display reflections Yref=4, 1, 2, 200
L*N=15,5 or YN=2 and L*W=130,1 or YW=200, normalisation: grey U



Figure iec8l0n1.jpg: Output in format A6 of the file iec8l0np.pdf, see
iec8l0n1. ps / txt / pdf / jpg

iec8: TUB-test chart iec8; CIELAB spaced 9 step grey scales
for four display reflections Yref=4, 1, 2, 60
L*N=31,0 or YN=6,7 and L*W=81,8 or YW=60, normalisation: white W



Figure iec9l0n1.jpg: Output in format A6 of the file iec9l0np.pdf, see
iec9l0n1. ps / txt / pdf / jpg

iec9: TUB-test chart iec9; CIELAB spaced 9 step grey scales
for four display reflections Yref=4, 1, 2, 60
L*N=31,0 or YN=6,7 and L*W=81,8 or YW=60, normalisation: grey U

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about colour test charts, colorimetric calculations, standards, and publications, see
indexAE.html in English, indexAG.html in German.

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