Korea and world maps for people with color vision deficiency
ISBN 978-85-88783-11-9
Authors
1Jeong, J.J.; 2Kang, Y.; 3Shin, H.S.
1SUNGSHIN WOMEN'S UNIVERSITY Email: jeongjj@sugnshin.ac.kr
2EWHA WOMANS UNIVERSITY Email: ykang@ewha.ac.kr
3SEOUL NATIONAL UNIVERSITY Email: gisci.hyu@gmail.com
Abstract
Color schemes in maps are used for delivering the height and bathymetry information of topography or the density information of physical or socio-economic phenomenon. Normal people with no color vision deficiency (CVD) intuitionally recognize information using color schemes in legends. But people with CVD have some difficulties or problems in looking for information from maps. To answer the questions, this research has three objectives; 1) to develop a CVD simulator, 2) develop a color scheme diagnosis tool, and 3) to develop color transformations method. And then, we apply our outcomes to Korea and world maps made by National Geographic Information Institute (NGII). In the maps, the height and bathymetry information of topography are presented using color schemes. CVD simulator enables to perceive how CVD people sense the color. We develop 4 simulators for protanope, deuteranope, tritanope, and monochromat. Color diagnosis tools are composed of 3 methods; 1) rank ordered difference, 2) valid pattern ratio, and 3) color confusion index. Color transformations are conducted using rotation methods and linear enhancement of lightness. Through 3 processes, we develop new color schemes for CVD people. To testify our results, we test usability evaluations for CVD people. In experiments, CVD people read more and accurate information from new maps than conventional maps for normal people.