【摘要】 本文提出数字伪曲率(DPC)的概念。在对数字图象局部区域内的曲线或纹理方向的不一致性所起的表示作用上,DPC与通常的数字曲率相同。然而DPC是数字图象的一种局部特征,其计算不依赖于曲线的提取,并且对由计算图象中各点的DPC值所形成的DPC场有快速算法。DCP场可用于纹理和结构图象的分割,文中以指纹和积木块图象的处理为例作了说明。更多还原

【Abstract】 The Copcept of "digital pseudo-curvature" (DPC) is proposed. For expressing non-uniformity of directions of curves or textures in a local region of a digital image, DPC is similar to the common digital curvature. while DPC is a local property of a digital picture, its computation does not depend on the extraction of curves. There is a fast algorithm for computing a DPC field which is obtained by computing DPC values for every point in a picture. The DPC aield can be used, to segment textual and structural images. Some processed results of fingerprint, and Mock images are given for examples更多还原