Data-Driven Automation of Color Encodings for Data Visualization
Sponsor: National Science Foundation
Abstract: Graphs, charts, and other visualizations of data rely on color both to convey key aspects of the underlying data and to attract and engage viewers. Getting both the accuracy and aesthetics of color choices right, however, is hard, and most existing tools for helping designers focus on just one of the two.
The research team will use designs created by existing tools to construct an initial statistical model of color mappings that captures expert designers' current decision-making. Developing accurate color mappings is even harder because how colors are perceived changes depending on the size and shape of visual marks, lighting and contrast, and a number of other factors. Color ramps will be represented as a set of control points (two end points in sequential encodings and two end points plus a midpoint in diverging ramps) that determine the overall structure of the ramp, and a smooth interpolation path that connecting the control points in colorspace. In addition to developing the specific models and tools around color encodings, the work sets up a broader research agenda of combining automation and interaction, in which semi-automated guidance democratizes effective visualization practice and allows people to leverage prior designs and create new representations without requiring extensive visualization training.
Publications
Elliott, M. C. Xiong, C. Nothelfer, & D. Albers Szafir. 鈥淎 Design Space of Vision Science Methods for Visualization Research.鈥� IEEE Transactions on Visualization, 2021 (to appear).
Reda, K. & Szafir, Danielle Albers. 鈥淩ainbows Revisited: Modeling Effective Colormap Design for Graphical Inference.鈥� IEEE Transactions on Visualization, 2021 (to appear).
Song, Hayeong and Szafir, Danielle Albers.听"Where's My Data? Evaluating Visualizations with Missing Data,"听IEEE Transactions on Visualization and Computer Graphics,听惫.25,听2019.听听听
Smart, Stephen and Szafir, Danielle Albers.听"Measuring the Separability of Shape, Size, and Color in Scatterplots,"听CHI '19 Proceedings of the 2019 CHI Conference on Human Factors in Computing Systems,听2019.听听
Smart, Stephen and Wu, Keke and Szafir, Danielle Albers.听"Color Crafting: Automating the Construction of Designer Quality Color Ramps,"听IEEE Transactions on Visualization and Computer Graphics,听2020.听听听
Associated Researchers
