Edge based cmy automatic picture registration

H - Electricity – 04 – N

Patent

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H04N 9/093 (2006.01)

Patent

CA 2595568

An automatic process for performing CMY (Cyan, Magenta, Yellow) registration for film digital restoration. After three color components Cyan, Magenta, and Yellow of a picture are scanned into files, each component is divided into blocks, and edge detection is applied to each block, and an edge match is performed. The data of displacements is processed, and then an affine transform parameters are calculated. The affine transform is then applied for each block, and warping is used to combine the color components and obtain the registered picture of a color component.

La présente invention concerne un processus automatique pour réaliser un enregistrement en CMJ (Cyan, Magenta, Jaune) pour la restauration numérique de films. Après balayage de trois composantes de couleur cyan, magenta et jaune d'une image dans des fichiers, chaque composante est subdivisée en blocs, la détection de contours est appliquée à chaque bloc, et une mise en correspondance de contours est réalisée. Les données de déplacement sont traitées, puis des paramètres de transformée affine sont calculés. La transformée affine est ensuite appliquée à chaque bloc, et une déformation est utilisée pour combiner les composantes de couleur et obtenir l'image enregistrée d'une composante de couleur.

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