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        <title>Photoshop&#160;CS4 * Application d’effets de couleur spéciaux aux images</title>
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                    Application d’effets de couleur spéciaux aux images
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                <div><div class="important"><span class="importanttitle">Important&#160;:  </span>sur le Web, vous disposez d’un système d’aide complet et actualisé. L’application n’a pas détecté de connexion Internet. Pour obtenir la version complète de cette rubrique, cliquez sur le lien ci-dessous ou recherchez dans l’Aide à l’adresse <a href="http://www.adobe.com/go/lr_Photoshop_community_fr" target="_blank">http://www.adobe.com/go/lr_Photoshop_community_fr</a>.</div>
<p>Des effets de couleur spéciaux peuvent être appliqués à une image&#160;; il est possible notamment de désaturer les couleurs, d’inverser les couleurs, d’appliquer une isohélie, de convertir une image couleur en noir et blanc ou d’appliquer une courbe de transfert de dégradé. </p>
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