... regions of area Ai ei is calculated as the sum of the distances to the region color average In this formula, the first term is a normalization factor, the second penalizes oversegmentation, and ... shift: a robust approach toward feature space analysis,” IEEE Transactions on Pattern Analysis and Machine Intelligence, vol 24, no 5, pp 603–619, 2002 [8] G Heidemann, “Region saliency as a measure ... “Empirical validation of the saliency -based model of visual attention,” Computer Vision and Image Analysis, vol 3, no 1, pp 13–24, 2004 [18] M Ozden and E Polat, A color image segmentation approach...