Line Enhanced Image Abstraction for Building Images

In this paper we present an automatic abstraction algorithm for building images.Firstly, the bilateral filter technique is used to remove the redundant details of the building image;and then the fast line segment detector with a false detection control is used to detect the outlines of the door, window or other edge features.Based on the line segments detected, a line-drawing image is generated by Flow-Based Difference-of-Gaussians filter to keep building's sketchy and clear outline features;at last the image from bilateral filtering and the line-drawing image are integrated to form the final abstraction result.With the presented algorithm, the redundant information is removed to abstract the detail content of the image, while a novel line enhanced technique is used to strengthen the special style of the building, which is similar to artist's hand-painting.Our algorithm is simple and easy to implement.And the experimental results verified the effectiveness of the algorithm.