Water droplets segmentation for hydrophobicity classification

In this paper, we propose an effective water droplets segmentation algorithm based on HSV color space and watershed method. Water droplets segmentation is the key issue to design an automatic hydrophobicity classification algorithm, and the challenge is two-fold: highlight spots on water droplets and the transparency of water. By decomposing the color images into HSV color space, water droplets are easy to be separated in the saturation channel, and watershed method is incorporated to reduce the side-effect of highlight spots. Experimental results on real images demonstrate the advantage of our proposed method.