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Readiris
TM
Pro 12 – Guide utilisateur
37
CHAPITRE 6
O
PTIMISATION DES DOCUMENTS
NUMÉRISÉS
Lorsque vous ouvrez ou numérisez des images couleur ou à niveaux
de gris très claires ou très foncées, il est parfois nécessaire
d'optimiser ces images avant de procéder à leur reconnaissance afin
d'obtenir des résultats d'OCR satisfaisants.
Pour optimiser les images :
Ouvrez ou numérisez un document couleur ou à niveaux de gris.
Vérifiez que les paramètres du numériseur sont corrects.
Important: les paramètres du numériseur et les paramètres
d'ajustement semblent identiques mais notez que les deux ensembles
de paramètres sont appliqués à des étapes différentes du processus de
numérisation/reconnaissance.
Dans le menu Action, cliquez sur Ajuster l'image.
Readiris utilise des routines de binarisation intelligentes pour
convertir les images couleur ou à niveaux de gris en images en noir et
blanc, utilisées pour réaliser l'OCR.
o Sélectionnez Lisser l'image couleur pour obtenir une
image plus homogène.
Grâce à cette option, qui lisse les différences d'intensité, les images
couleur et à niveaux de gris sont plus uniformes. En conséquence, le
contraste est plus marqué entre l'avant-plan (texte) et l'arrière-plan
(illustration).
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