| 摘要 |
A method for assessing the presence of a border in an image, the method comprises assessing for each of two pixel positions an estimate of the strength of the second-order rate of change of a convolution of said image, which may be an isotropic Gaussian convolution, at the pixel position with respect to a plurality of directions and determining a binary condition of the pixel position in dependence on whether the strength exceeds a predetermined threshold then assessing the presence of a border by comparing the two binary conditions. |
