@article{Arto KAARNA:381, author = {Arto KAARNA, Wei LIU, Heikki K?LVI?INEN}, title = {Development of color density concept with color difference formulas in respect to human vision system}, publisher = {Front. Electr. Electron. Eng.}, year = {2011}, journal = {Frontiers of Electrical and Electronic Engineering}, volume = {6}, number = {2}, eid = {381}, numpages = {6}, pages = {381}, keywords = {color density;discrimination ellipses;color difference formulas;color vision}, url = {https://journal.hep.com.cn/fee/EN/abstract/article_1670.shtml}, doi = {10.1007/s11460-011-0144-0} }