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Classe: EB8
Préparé par: Darine Nohra
LA THÉORIE DES COULEURS
SANS LUMIÈRE, IL N'Y A PAS DE COULEUR
 On va découvrir dans ce chapitre que la
lumière et la couleur sont intimement liées.
 On va voir les secrets des plus grandes
découvertes sur la lumière et les différents
types des couleur.
DÉFINITION DE LA COULEUR
 La couleur est la perception que nous avons
des différentes longueurs d’onde qui
constituent la lumière visible.
 Cet ensemble de longueurs d’onde qu’on
appelle le spectre de la lumière s'étend du
violet au rouge.
Au-delà de ces longueurs d’onde, la lumière devient
invisible et on entre dans le domaine de l’ultraviolet
et de l’infrarouge .
ON DIFFERE DEUX TYPES DE COULEURS:
La synthèse additive:
(lumière)
En utilisant seulement les
primaires RVB (rouge, vert,
bleu), il est possible de
reconstituer la lumière
blanche.
La synthèse soustractive:
(pixel)
La source lumineuse est le
blanc du papier. La
synthèse soustractive est
associée aux primaires CMJ
(Cyan, Magenta, Jaune). Le
mélange des trois primaires
donnera la couleur noir
Le spectre
de la
lumière
Le cercle
chromatique
Il ne serait sans doute pas exagérer d'affirmer
que la couleur est l'outil le plus efficace pour
transmettre un message.
Elle fournit un moyen très puissant d'imposer
un ton et une embiance.
MERC
I

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La théorie des couleurs/ darine

  • 1. Classe: EB8 Préparé par: Darine Nohra LA THÉORIE DES COULEURS
  • 2. SANS LUMIÈRE, IL N'Y A PAS DE COULEUR  On va découvrir dans ce chapitre que la lumière et la couleur sont intimement liées.  On va voir les secrets des plus grandes découvertes sur la lumière et les différents types des couleur.
  • 3. DÉFINITION DE LA COULEUR  La couleur est la perception que nous avons des différentes longueurs d’onde qui constituent la lumière visible.  Cet ensemble de longueurs d’onde qu’on appelle le spectre de la lumière s'étend du violet au rouge. Au-delà de ces longueurs d’onde, la lumière devient invisible et on entre dans le domaine de l’ultraviolet et de l’infrarouge .
  • 4. ON DIFFERE DEUX TYPES DE COULEURS: La synthèse additive: (lumière) En utilisant seulement les primaires RVB (rouge, vert, bleu), il est possible de reconstituer la lumière blanche. La synthèse soustractive: (pixel) La source lumineuse est le blanc du papier. La synthèse soustractive est associée aux primaires CMJ (Cyan, Magenta, Jaune). Le mélange des trois primaires donnera la couleur noir
  • 5. Le spectre de la lumière Le cercle chromatique
  • 6. Il ne serait sans doute pas exagérer d'affirmer que la couleur est l'outil le plus efficace pour transmettre un message. Elle fournit un moyen très puissant d'imposer un ton et une embiance.