Object-Based Queries Using Color Character-Point
一种基于彩色特征点的对象查询方法

Object-based queries in image retrieval system usually imply segmentation. Some researchers have brought a new method forward that is interested in optics. However it is not optimal.since it is limited to gray value images. This method cannot solve color images. For this reason,this paper proposes a new solution based on color character-point. Firstly.it requires using the Harris color detector to extract some points from images. These points are good enough to represent feature of mages; Secondly .using grads and angles invariants of the characterization of points to implement queries. The result of the experiment shows that this solution is robust to object perturbations like viewpoint or illumination changes.