In this paper, a new image segmentation technique called WaterBalloons is introduced. It combines both Watershed segmentation and the Active Contour Model known as Balloon Snake. The Watershed transform has a major problem of oversegmentation. Solutions like Region merging, use of markers, use of multi-scales have been proposed. These approaches led to other problems such as undersegmentation. The Balloon Snake in an innovative approach that detects salient objects in an image. But in general Snakes are very sensitive to initialization and need user interactions and a-priori knowledge of objects to segment. WaterBalloons provide the advantage of reducing watershed over-segmentation problems while preventing under-segmentation and ensure automatic initialization of traditional snakes. In addition, a method for parameter optimization of the proposed hybrid snake is introduced based on energy transitions tracking.Issam Dagher: Associate Professor, University Of balamand. Lebanon Kamal El Tom: MS student. University Of balamand. Lebanon
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