Figures and data of "Colour difference data sets and performance of colour difference formulae" are in the folders XEXX (colour series X, E=English, XX=00 to 99).

Folder and Title
Development of colour difference data sets
Many of the folders XEXX (XX=00 to 99) include colour difference data sets in the PS files. The files create a standard PDF output format which is used as standard input format in the folders YEXX (XX=00 to 99).
In the folders XEXX (XX=00 to 99) the input data of the colour difference data sets are from different sources. Any data set is described by 8 characters, for example OS_L0128.
1. O is for the name OSA, M is for the name Munsell, etc.
2. A or S describes the sample viewing condition: Adjacent (A) or Separate (S).
3. V, T, S, L, E is for the size of the mean colour difference in the data set
- V = VTCD Visual Threshold Colour Differences (0 < dE*ab <= 1)
- T = TCD Threshold Colour Differences (0 < dE*ab <= 2)
- S = SCD Small Colour Differences (0 < dE*ab <= 5)
- L = LCD Large Colour Differences (5 < dE*ab <= 20)
- E = ELCD Extra Large Colour Differences (20 < dE*ab <= 99).
4. 0, W, V, C, or D (0 = no pair comparison data used, or data from WANG or VIK experimental data used, or data from CIELAB or CIEDE2000 formula used).
5-8. number of colour difference pairs in the data set.

For basic information on colour, see also the booklet Colour and Colour Vision - Elementary Colours in Image Technology
in 6 languages: English, German, French, Spanish, Italian, and Norwegian (2015, 85 pages, 2,5 MB, PDF, format A5 also for mobil reading).
color

Relative and scaled colour differences
XE00: Colour triplets and colour pairs; separated and adjacent colours.
XE01: 3 and 5 step colour pairs; separated and adjacent colours.

Tables of colour threshold data in CIE spaces Yxy, CIELAB and others
LABJND with constants for A, D65, and special constants; RI-experiments: series WPN, GDR, BDY in directions WN, RG, YB
XE02: CIE-Yxy and CIE-Yxy difference data; LABJND with constants for A and D65
XE03: CIE-Yxy and CIE-Yxy difference data; LABJND with special constants 0,7 1,3 1,2
XE04: CIE-Yxy and CIE-Yxy difference data; LABJND with special constants 0,7 1,3 1,2
XE05: CIE-Yxy and CIE-Yxy difference data; LABJND with special constants 0,7 1,3 1,2
XE06: CIE-Yxy and CIE-Yxy difference data; LABJND with constants for A and D65

Colour vision and properties
XE07: Elementary hues and colour difference formulae

Relative and scaled differences; Colour triplets and colour pairs; separate and adjacent colours
XE08: Tables and viewing situation; achromatic series N-W
XE09: Tables and viewing situation; chromatic series T_M (G-R)
XE10: Tables and viewing situation; chromatic series B-Y
XE11: Tables; 2x16 anchor colour pairs with 4 interval colours = 160 colours
XE12: Tables; 2x16 anchor colour pairs without interval colours = 32 colours
XE13: Tables; 16 anchor colour pairs with 4 interval colours = 80 colours

rgb & LCh* tables; rgb device (d) colour input and LCh* device colour output
CIELAB diagrams (a*, b*) and (L*, C*ab) for 6 device hues
XE14: Offset Extrem Large Colour Differences (ELCD)
XE15: BAM Extrem Large Colour Differences (ELCD)
XE16: Offset and BAM Extrem Large Colour Differences (ELCD)

Relative and scaled colour differences; colour triplets and colour pairs; separate and adjacent colours
XE17: Triplets and 6 steps; anchor pairs
XE18: Viewing situation of 3 triplets and anchor pairs

Relative and scaled differences; Colour triplets and colour pairs; separate colours
XE19: Tables and viewing situation; achromatic series N-W and chromatic series R-C
XE20: Tables and viewing situation; chromatic series B-Y and anchor series

Colour difference experiments; Names, colorimetric properties, and download of the colour difference data sets
XE21: Small Colour Differences (SCD); Threshold Colour Differences (TCD);
and Visual Threshold Colour Differences (VTCD)
XE22: Large Colour Differences (LCD) and Extra Large Colour Differences (ELCD)

Tables of colour threshold data in CIE spaces Yxy, CIELAB and others
LABJND with constants for A, D65, and special constants; RI-experiments: series WPN, GDR, BDY in directions WN, RG, YB
XE23: CIE-Yxy-Lab* and CIE-Yxy-Lab* difference data; LABJND with constants for A and D65

Colour difference data sets; delta_E*-distribution and performance (STRESS values)
Tables and PF_Tables for Small Colour Differences (SCD), 6 TCD ranges 0 < delta_E* < 2
XE24: Tables for the data sets WI_S, RD_S, LE_S, BF_S, SS_S
XE25: PF-Tables for the same data sets

Colour difference data sets; delta_E*-distribution and performance (STRESS values),
Tables and PF_Tables for Threshold Colour Differences (TCD), 6 TCD ranges 0 < delta_E* < 2
XE26: Tables for the data sets WA_T, 1S_T, 2M_T, 2S_T, 2G_T
XE27: PF-Tables for the same data sets

Colour difference data sets; delta_E*-distribution and performance (STRESS values)
Tables and PF_Tables for Visual Threshold Colour Differences (VTCD), 6 TCD ranges 0 < delta_E* < 2
XE28: Tables for the data sets RI_V, KI_V, AV_V
XE29: PF-Tables for the same data sets

Colour difference formulae, colour pairs with Extra Large Colour Differences (ELCD)
Use of CIELAB (C) & CIEDE2000 (D) formula (D), and of visual Wang (W) data
XE30: Pair comparison data and delta_E* data for data sets VA_ED114, VA_EC114, VA_EW106
XE31: Interval scaling data and delta_E* data for data sets VA_ED114, VA_EC114, VA_EW106
XE32: XYZ, visual and delta_E* data for data sets VA_ED114, VA_EC114, VA_EW106

Colour difference formulae, colour pairs with Extra Large Colour Differences (ELCD)
Use of CIELAB (C) data
XE33: Pair comparison data and delta_E* data for data sets VA_ED114, KA_ED114, KS_ED114, MA_ED098
XE34: Interval scaling data and delta_E* data for data sets VA_ED114, KA_ED114, KS_ED114, MA_ED098
XE35: XYZ, visual and delta_E* data for data sets VA_ED114, KA_ED114, KS_ED114, MA_ED098

Colour difference formulae, colour pairs with Extra Large Colour Differences (ELCD)
Use of CIELAB (C) & CIEDE2000 (D) formula (D), and of visual Wang (W) data
XE36: Pair comparison data and delta_E* data for data sets VA_EX114, KA_EX114, KS_EX114, MA_EX098 (X=D,C,W)
XE37: Interval scaling data and delta_E* data for data sets VA_EX114, KA_EX114, KS_EX114, MA_EX098 (X=D,C,W)
XE38: XYZ, visual and delta_E* data for data sets VA_EX114, KA_EX114, KS_EX114, MA_EX098 (X=D,C,W)

Relative and scaled colour differences; 5 step series, colour triplets and colour pairs; separate and adjacent colours
XE39: BAM 5 step colour series; different anchor colours; CIELAB and visual differences
XE40: Examples for the calculation of scaled visual differences

Colour difference formulae, colour pairs with Extra Large Colour Differences (ELCD)
Use of pair comparison data of WANG (W) or VIK (V)
XE41: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set Va_EW098=VIK_EW
XE42: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set Ka_EW098=KITTELMANN_EW
XE43: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set Ks_EW098=KITTELMANN_EW
XE44: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set Ma_EW098=MELGOSA_EW

XE45: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set Va_EV098=VIK_EV
XE46: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set Ka_EV098=KITTELMANN_EV
XE47: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set Ks_EV098=KITTELMANN_EV
XE48: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set Ma_EV098=MELGOSA_EV

Colour difference formulae, colour pairs with Extra Large Colour Differences (ELCD)
Pure test calculations with use of pair comparison data of the CIELAB formula (C)
XE49: 114 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set VA_EC114=VIK_EC
XE50: 114 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set VA_EC114=VIK_EC

Colour difference formulae, colour pairs with Extra Large Colour Differences (ELCD)
Use of pair comparison data of CIELAB formula (C) or CIEDE2000 formula (D)
XE51: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set VA_EC098=VIK_EC
XE52: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set KA_EC098=KITTELMANN_EC
XE53: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set KS_EC098=KITTELMANN_EC
XE54: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set MA_EC098=MELGOSA_EC

XE55: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set VA_ED098=VIK_ED
XE56: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set KA_ED098=KITTELMANN_ED
XE57: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set KA_ED098=KITTELMANN_ED
XE58: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set MA_ED098=MELGOSA_ED

Colour difference formulae, colour pairs with Extra Large Colour Differences (ELCD)
Pure test calculations with use of pair comparison data of the CIELAB formula (C)
XE59: 114 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set VA_EC114=VIK_EC
XE60: 114 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set VA_EC114=VIK_EC

Colour difference formulae, colour pairs with Extra Large Colour Differences (ELCD)
Use of pair comparison data of WANG (W) or VIK (V)
XE61: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set VA_EW098=VIK_EW
XE62: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set KA_EW098=KITTELMANN_EW
XE63: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set KS_EW098=KITTELMANN_EW
XE64: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set MA_EW098=MELGOSA_EW

XE65: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set VA_EV098=VIK_EV
XE66: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set KA_EV098=KITTELMANN_EV
XE67: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set KS_EV098=KITTELMANN_EV
XE68: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set MA_EV098=MELGOSA_EV

Tables of colour threshold data in CIE spaces Yxy, CIELAB and others
LABJND with constants for A, D65, and special constants;
RI-experiments: series WPN, GDR, BDY in directions WN, RG, YB
XE69: CIE-Yxy and CIE-Yxy difference data; LABJND with constants for A and D65
XE70: CIE-Lab* and CIE-Lab* difference data; LABJND with constants for A and D65

Colour difference formulae, colour pairs with Threshold Colour Differences (TCD)
XE71: 100 colour pairs with Threshold Colour Differences (TCD), XYZ, visual and delta_E* data for data set WA_T0100=WANG
XE72: 890 colour pairs with Threshold Colour Differences (TCD), XYZ, visuelle und delta_E*-Daten für Datensatz SA_T0890=BIGC_T1_SG
XE73: 399 colour pairs with Threshold Colour Differences (TCD), XYZ, visual and delta_E* data for data set MA_T0399=BIGC_T2_M
XE74: 446 colour pairs with Threshold Colour Differences (TCD), XYZ, visual and delta_E* data for data set SA_T0446=BIGC_T2_SG
XE75: 379 colour pairs with Threshold Colour Differences (TCD), XYZ, visual and delta_E* data for data set GA_T0379=BIGC_T2_G

Colour difference formulae, colour pairs with Extra Large Colour Differences (ELCD)
XE76: 96 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set RS_EI096=RICHTER_EI
XE77: 96 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set RS_EP096=RICHTER_EP
XE78: 80 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set RS_EI080=RICHTER_EI
XE79: 80 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set RS_EP080=RICHTER_EP
XE80: 160 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set RS_ER160=RICHTER_ER

Colour difference formulae, colour pairs with Large Colour Differences (LCD)
XE81: 128 colour pairs with Large Colour Differences (LCD), XYZ, visual and delta_E* data for data set OS_L0128=OSA_L
XE82: 844 colour pairs with Large Colour Differences (LCD), XYZ, visual and delta_E* data for data set MS_L0844=MUNSELL_L
XE83: 1308 colour pairs with Large Colour Differences (LCD), XYZ, visual and delta_E* data for data set PA_L1308=POINTER_L
XE84: 292 colour pairs with Large Colour Differences (LCD), XYZ, visual and delta_E* data for data set GA_0292=GUAN_L
XE85: 144 colour pairs with Large Colour Differences (LCD), XYZ, visual and delta_E* data for data set ZA-L0144=ZHU_L
XE86: 238 colour pairs with Large Colour Differences (LCD), XYZ, visual and delta_E* data for data set BA_L0238=BADU_L

Colour difference formulae, colour pairs with Extra Large Colour Differences (ELCD)
XE87: 60 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set WA_EW060=WANG_EW
XE88: 98 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set VA_EV098=VIK_EV
XE89: 32 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set RS_ER032=RICHTER_ER
XE90: 192 colour pairs with Extra Large Colour Differences (ELCD), XYZ, visual and delta_E* data for data set RS_ER192=RICHTER_ER

Colour difference formulae, colour pairs with Visual Threshold Colour Differences (VTCD)
XE91: Visual Threshold Coulor Differences (VCD), XYZ, visual and delta_E* data for data set RA_V0330=RICHTER
XE92: Visual Threshold Coulor Differences (VCD), XYZ, visual and delta_E* data for data set KA_V0392=KITTELMANN
XE93: Visual Threshold Coulor Differences (VCD), XYZ, visual and delta_E* data for data set AA_V0132=AVRAMOPOULOS

Colour difference formulae, colour pairs with Small Colour Differences (SCD)
XE94: Small Colour Differences (SCD), XYZ, visual and delta_E* data for data set WA_S0418=WITT
XE95: Small Colour Differences (SCD), XYZ, visual and delta_E* data for data set RA_S0312=RIT_DUPONT
XE96: Small Colour Differences (SCD), XYZ, visual and delta_E* data for data set LA_S0317=LEEDS
XE97: Small Colour Differences (SCD), XYZ, visual and delta_E* data for data set BA_S2776=BFD_ALL
XE98: Small Colour Differences (SCD), XYZ, visual and delta_E* data for data set SA_S0446=BIGC_S_SG

XE99: Under development.

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