Fig. 8From: Lip segmentation using automatic selected initial contours based on localized active contour model1–3 a RGB image after illumination equalization. b Initial contour in combined color space. c Final result. d Convergence result of U component. e Convergence result of C2 component. f Convergence result of C3 component. g Segmentation result of U component. h Segmentation result of C2 component. i Segmentation result of C3 componentBack to article page