Design of Comprehensive Color Feature Vector for Tile Color Online Inspection

This paper proposed a comprehensive color feature vector for tile online color consistency inspection. Non-uniform color quantitative method that was based on main color and human vision was put forward and the result accord with the human vision and the speed meet the requirement of tile online inspection. In order to synchronously meet the demand of tile global and local color difference inspection, especially to the tile with texture, global and composite color center of main color were introduced to describe tile color spatial distribution information. A comprehensive color feature vector including tile color global statistical information and spatial distribution information was designed and solved the difficult problem of tile color difference inspection and classification. The results show that this method was suitable for not only monochrome tile but also the tile with complex texture.