基于主体区域保持的图像缩放算法

Scaling and seam carving are commonly used algorithm in image resizing, but scaling is not suitable for the case that the resize ratio is not uniformity, seam carving will also has a bad effect on important area in some cases. In this paper we proposed a novel algorithm which is based on important region maintain. Firstly, we make a corner detection based on difference of Gaussian, then Graham-scan algorithm is applied to do an important region detection, after that we will add different weights