1. School of Electronics and Information Engineering, University of Science and Technology Liaoning; Anshan 114051 China
2. Wenzhou University; Wenzhou 325035 China
3. State Key Laboratory of Modern Optical Instrumentation; Zhejiang University; Hangzhou China
4. School of Design; University of Leeds; Leeds LS2 9JT United Kingdom
5. Department of Optics; University of Granada; Granada 18071 Spain
6. Datacolor, 5 Princess Road; Lawrenceville New Jersey 08648