241201 1L2L0X0H_K2710.KTS/YEclHIN.KTS http://color.li.tu-berlin.de/hecs.htm or http://farbe.li.tu-berlin.de/hecs.htm

For links to the Section 2, Chapter H SDR and HDR-colour metric for optimal colour-image quality (2025) , under work, see
For this image page with 10 colour series, see hecs in English, hgcs in German.
For the previous image page, see hebs in English, hgbs in German.
For the next image page, see heds in English, hgds in German.
For the first image page of the previous chapter G, see geas in English, ggas in German.
For the first image page of the next chapter I (under work), see ieas in English, igas in German.

Content list of chapter H (under work): hea_i in English or hga_i in German.
Summary of chapter H: hea_s in English or hga_s in German.
For the large image page of chapter H with 260 colour series, see he2s in English or hg2s in German.

Section 2, Chapter H
SDR and HDR-colour metric for optimal colour-image quality (2025), Image part hecs

Title: EPS-example codes of EPS images; EPS codes FLVGL and FLVLF
Special colourimetric properties of colour-image technology
Lightness, threshold, sensitivity and contrast according to colour-difference formulae
LABJND, CIELAB, IECsRGB, and TUBsRGB as function of relative luminance
1. Introduction and goals.
2. EPS-example codes of EPS images; EPS codes Global FLVGL and Local FLVLF;
3. Special colourimetric properties of colour-image technology;
4. Calculations with colour difference formulae LABJND according to CIE 230:2019,
CIELAB according to ISO/CIE 11664-4, IECsRGB according to IEC 61966-2-1, and
TUBsRGB similar IECsRGB;
5. Lightness L*, threshold deltaY, sensitivity deltaY/Y, and
contrast Y/deltaY, all normalized to mean grey U as function
of relative luminance (ln, log, and lin output);
6. Application and discussion.

The following ten pages hec0 to hec9 of this chapter
show the content with links to the single figures in up to six formats.


Figure hec0l0n1.jpg: Output in format A6 of the file hec0l0np.pdf, see
hec0l0n1. ps / txt / pdf / jpg

hec0: TUB-test chart hec0; EPS-example code of
EPS images, see EPS code FLVGL and FLVLF in
http://color.li.tu-berlin.de/hec0/hec0l0np.txt and /hecs.htm



Figure hec1l0n1.jpg: Output in format A6 of the file hec1l0np.pdf, see
hec1l0n1. ps / txt / pdf / jpg

hec1: TUB-test chart hec1; EPS-example code of
EPS images, see EPS code FLVGL in
http://color.li.tu-berlin.de/hec0/hec0l0np.txt and /hecs.htm



Figure hec2l0n1.jpg: Output in format A6 of the file hec2l0np.pdf, see
hec2l0n1. ps / txt / pdf / jpg

hec2: TUB-test chart hec2; EPS-example code of
EPS images, see EPS code FLVGL in
http://color.li.tu-berlin.de/hec0/hec0l0np.txt and /hecs.htm



Figure hec3l0n1.jpg: Output in format A6 of the file hec3l0np.pdf, see
hec3l0n1. ps / txt / pdf / jpg

hec3: TUB-test chart hec3; EPS-example code of
EPS images, see EPS code FLVLF in
http://color.li.tu-berlin.de/hec0/hec0l0np.txt and /hecs.htm



Figure hec4l0n1.jpg: Output in format A6 of the file hec4l0np.pdf, see
hec4l0n1. ps / txt / pdf / jpg

hec4: TUB-test chart hec4; EPS-example code of
EPS images, see EPS code FLVLF in
http://color.li.tu-berlin.de/hec0/hec0l0np.txt and /hecs.htm



Figure hec5l0n1.jpg: Output in format A6 of the file hec5l0np.pdf, see
hec5l0n1. ps / txt / pdf / jpg

hec5: TUB-test chart hec5; CIELAB & TUBsRGB-colour difference
see ISO/CIE 11664-4 & TUBsRGB, ln, log and lin[lightness L*,
threshold deltaY, sensitivity deltaY/Y, contrast Y/deltaY]



Figure hec6l0n1.jpg: Output in format A6 of the file hec6l0np.pdf, see
hec6l0n1. ps / txt / pdf / jpg

hec6: TUB-test chart hec6; LABJND & CIELAB-colour difference
see CIE 230:2019 & ISO/CIE 11664-4, log and lin[lightness L*,
threshold deltaY, sensitivity deltaY/Y, contrast Y/deltaY]



Figure hec7l0n1.jpg: Output in format A6 of the file hec7l0np.pdf, see
hec7l0n1. ps / txt / pdf / jpg

hec7: TUB-test chart hec7; LABJND & IECsRGB-colour difference
see CIE 230:2019 & IECsRGB, log and lin[lightness L*,
threshold deltaY, sensitivity deltaY/Y, contrast Y/deltaY]



Figure hec8l0n1.jpg: Output in format A6 of the file hec8l0np.pdf, see
hec8l0n1. ps / txt / pdf / jpg

hec8: TUB-test chart hec8; CIELAB & IECsRGB-colour difference
see ISO/CIE 11664-4 & IEC 61966-2-1, log and lin[lightness L*,
threshold deltaY, sensitivity deltaY/Y, contrast Y/deltaY]



Figure hec9l0n1.jpg: Output in format A6 of the file hec9l0np.pdf, see
hec9l0n1. ps / txt / pdf / jpg

hec9: TUB-test chart hec9; IECsRGB & TUBsRGB-colour difference
see IEC 61966-2-1 & TUBsRGB, 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.