is it turquoise + fuchsia = purple or is it turquoise + fuchsia = blue?
DESCRIPTION
Presentation made at EI 2011TRANSCRIPT
Is it turquoise + fuchsia = purpleor is it
turquoise + fuchsia = blue?
Giordano B. Beretta, Nathan M. Moroney
Printing & Content Delivery LabHewlett-Packard Laboratories
Palo Alto, California
Color Imaging XVI:Displaying, Processing, Hardcopy, and Applications
San Francisco Airport, 24 – 27 January 2011
Beretta & Moroney (HP Labs) Session 5: Vision EI 2011 paper 7866-16 1 / 16
Color diagrams by scientists
0 0.1 0.2 0.3 0.4 0.5 0.60
0.1
0.2
0.3
0.4
0.5
u’
v’
Fig. 2−1: Chromaticities of the six filters
Red 304M−3E
Green 203−3E
Blue 111−3E
Green 206−3E
Beretta & Moroney (HP Labs) Session 5: Vision EI 2011 paper 7866-16 2 / 16
Color diagrams by designers
Beretta & Moroney (HP Labs) Session 5: Vision EI 2011 paper 7866-16 3 / 16
sRGB color diagram
Beretta & Moroney (HP Labs) Session 5: Vision EI 2011 paper 7866-16 4 / 16
It is 3-dimensional!
Assuming we are viewing on an sRGB display
Beretta & Moroney (HP Labs) Session 5: Vision EI 2011 paper 7866-16 5 / 16
Printer gamut
Assuming we are viewing on an sRGB display resp. print
Beretta & Moroney (HP Labs) Session 5: Vision EI 2011 paper 7866-16 6 / 16
Color theories — an abstraction
Leonardo da Vinci vs. Johannes Itten
Beretta & Moroney (HP Labs) Session 5: Vision EI 2011 paper 7866-16 7 / 16
Itten revealed
Gelb
Gelborange
Orange
Rot-orange
Rot
Rotviolett
Violett
Blauviolett
Blau
Blau-grün
Grün
Gelbgrün
It is lexical!
Beretta & Moroney (HP Labs) Session 5: Vision EI 2011 paper 7866-16 8 / 16
Color by measurement
Beretta & Moroney (HP Labs) Session 5: Vision EI 2011 paper 7866-16 9 / 16
Naming color
Beretta & Moroney (HP Labs) Session 5: Vision EI 2011 paper 7866-16 10 / 16
Validating crowd-sourcing
The calibrated lunch. Instructions:Please take a colored patch from one of the volunteers beforegetting your foodThe game consists of sitting at the table with color name closest toyour colored chipIf you have any difficulties with selecting a table please ask forhelp from anyoneThe table with closest agreement or smallest difference betweentheir color patches will win a prizeOne member of the winning table will then be eligible to win thegrand prize
Beretta & Moroney (HP Labs) Session 5: Vision EI 2011 paper 7866-16 11 / 16
Color chips given and color seating arrangement
Beretta & Moroney (HP Labs) Session 5: Vision EI 2011 paper 7866-16 12 / 16
Calibrated lunch vs. Web color centroids
CIECAM02 hue angles for 25 non-basic color terms:
y = 1.01x – 4.57 R2 = 0.99
0
90
180
270
360
0 90 180 270 360
Cal
ibra
ted
Lu
nch
Uncalibrated Web
Beretta & Moroney (HP Labs) Session 5: Vision EI 2011 paper 7866-16 13 / 16
Beyond crowd sourcing
English corpus 1800 − 2000, smoothing of 3
Beretta & Moroney (HP Labs) Session 5: Vision EI 2011 paper 7866-16 14 / 16
What is the best term for RGB = (0, 1, 1)?
English corpus 1800 − 2000, smoothing of 3
Beretta & Moroney (HP Labs) Session 5: Vision EI 2011 paper 7866-16 15 / 16
Is the term for RGB = (1, 1, 0) monolexemic?
English corpus 1800 − 2000, smoothing of 3
Beretta & Moroney (HP Labs) Session 5: Vision EI 2011 paper 7866-16 16 / 16