A Saliency Detection Method Based on Global Contrast

Abstract

To highlight the saliency object clearly from the foreground, we propose a saliency detection method based on global contrast with cluster.Due to the fact that background pixels usually have similar patches, we use cluster analysis to merge the background regions.By using mean shift filter, the background pixels with similar color level are clustered and the saliency calculation can be decreased a lot.In the method, we use the contrast of color feature with all the other pixels to compute the saliency map.A weight coefficient is utilized to improve the detection accuracy in global contrast differences evaluation.The results of extensive experiments on public dataset show that our method perform well and can highlight the salient object clearly against the other five state-of-the-art methods.Besides, we demonstrate that the applications in image segmentation and fusion with our saliency map can get satisfactory results.