An Integrated Color-Spatial Approach for Content-Based Image Retrieval

摘要

A Content-Based Image Retrieval (CBIR) system that employs both the color and spatial information of images is proposed. A maximum of three dominant color regions in an image together with its respective coordinates of the Minimum-Bounding Rectangle (MBR) is extracted using the Color-based Dominant Region segmentation. The Improved Sub-Block technique is then used to determine the location of the dominant regions by taking into consideration the total horizontal and vertical distance of a region at each location where it overlaps. A Query-by-Example CBIR system implementing the color-spatial technique is developed. We conducted an experimental study on an image database consisting of 900 images. The retrieval effectiveness using the new color-spatial technique is demonstrated.