Thresholding technique with adaptive window selection for uneven lighting image

By adaptively selecting image window size based on the pyramid data structure manipulation of Lorentz information measure, a new technique for image thresholding is proposed. The advantage of this technique is its effectiveness ill eliminating both uneven lighting disturbance and ghost objects. When applied to Otsu's thresholding approach, it can provide accurate result under uneven lighting disturbance while using Otsu's method alone cannot. Experimental results show the effectiveness of this method. (c) 2004 Elsevier B.V. All rights reserved.