input patterns

• The input patterns are the spatial coordinates of the seeds, with each dimension normalized in the range [0,1].

• Let X be a S x 2 input matrix, where S is the number of seeds selected

• The position of the h^th seed in the image is represented by the vector X_h = (x_h1,x_h2), where the first coordinate indicates the column and the second coordinate the row of the image.