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WikiCards · Card list · Science cards · CIELAB color space
Uncommon card · Science
CIELAB color space, an Uncommon card
The CIELAB color space, also referred to as L*a*b*, is a color space defined by the International Commission on Illumination in 1976.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 66
- DEF
- 56
- Power
- 122
- Wikipedia reads a year
- 120,000
Power 122 (ATK + DEF): stronger than 60 % of WikiCards cards.
CIELAB color space quiz: 3 questions
Three questions on the CIELAB color space card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
While the LAB space is not truly perceptually uniform, it ______ is useful in industry for detecting small differences in color.
Answer
nevertheless. While the LAB space is not truly perceptually uniform, it nevertheless is useful in industry for detecting small differences in color. From the CIELAB color space article on Wikipedia.
In which decade?
The CIELAB color space, also referred to as L*a*b*, is a color space defined by the International Commission on Illumination in ____.
Answer
1970s. The CIELAB color space, also referred to as L*a*b*, is a color space defined by the International Commission on Illumination in 1976. From the CIELAB color space article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Digital signature. Digital signature 74 · Atomic nucleus 70 · CIELAB color space 66 · Beige 59 ATK in WikiCards.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- It expresses color as three values: L* for perceptual lightness and a* and b* for the four unique colors of human vision: red, green, blue and yellow.
- CIELAB was intended as a perceptually uniform space, where a given numerical change corresponds to a similar perceived change in color.
- While the LAB space is not truly perceptually uniform, it nevertheless is useful in industry for detecting small differences in color.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The CIELAB color space article was read about 120,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 66 and blocks with 56: each hit it takes is cut by 22 %.
How to get CIELAB color space
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Science cards
Cards close in power
The cards just above and just below CIELAB color space in the power ranking, all domains together.
- A Connecticut Yankee in King Arthur's CourtUncommon · Arts · ATK 71 DEF 51
- Alain DucasseUncommon · History · ATK 67 DEF 55
- BuildingUncommon · Science · ATK 65 DEF 57
- Danni Wyatt-HodgeUncommon · History · ATK 69 DEF 53
- Danny WillettUncommon · Society · ATK 69 DEF 53
- DormouseUncommon · Nature · ATK 64 DEF 58
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- Science cards
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- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, CIELAB color space (revision), CC BY-SA 4.0. Photo : Holger kkk Everding, CC BY-SA 4.0, Wikimedia Commons.
