Institute of Image Processing and Pattern Recognition, Shanghai Jiaotong University, Shanghai 200240, China;
Department of Computer Science, Nanjing University of Science and Technology, Nanjing 210094, China;
Institute of Image Processing and Pattern Recognition, Shanghai Jiaotong University, Shanghai 200240, China;
Institute of Image Processing and Pattern Recognition, Shanghai Jiaotong University, Shanghai 200240, China;
color-texture segmentation; J value segmentation (JSEG); photometric color invariance; edge detection; region growing;