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Détection de contour

Identifiez et dessinez des contours autour des objets dans n'importe quelle image. Utile pour l'analyse de forme, le comptage d'objets et la visualisation des limites.

Détectez les contours de l’image et délimitez les formes fermées, les régions et les limites des objets pour la segmentation et le débogage de la vision par ordinateur.

All processing runs locally in your browser. Your files never leave your device — no upload, no server, no signup required.

Frequently Asked Questions

What is contour detection?

Contour detection finds continuous curves that form the boundaries of objects in an image. It is used in shape analysis, object counting, gesture recognition, and industrial inspection.

What is the difference between external and all contours?

External mode detects only outermost contours (no nested boundaries). All mode returns every contour including holes. Tree mode preserves the parent-child hierarchy.

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