Figure 6. Color classification of an input image using two different classification schemes.

(a) Input image. (b,c) Results of one-stage classification. (d,e) Results of two-stage classification. Positively detected regions are highlighted by red contours in (b) and (d). Panels (c) and (e) show the remaining segments in the image. The two-stage classification detects segments of elephants equally good as the one-stage approach but generates less false-positive detections.