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<h4 class="pHeading4">
Pixel
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Toutes les images informatiques sont constitues de minuscules points. Chaque point individuel est appel &quot;pixel&quot;, mot qui a t cr  partir des termes &quot;picture element&quot;. Le pixel est la plus petite unit indivisible d'une image numrique et ne peut avoir qu'une seule couleur. La taille du pixel dpend de la rsolution de l'affichage. La taille la plus petite d'un pixel est dtermine par le pas de l'affichage, mesur en millimtres (mm).
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