**4. Evaluation**

The following sections describe two evaluations of the multi-sensory color code. The first evaluation compares the effectiveness in terms of color identification success rate of the multi-sensory color code and a uni-sensory color code. The second evaluation examines the usability of the multi-sensory color code when used to experience the color contents in a painting. The evaluation involves using a visual sensory substitution device prototype that uses the proposed multi-sensory color code and a tactile graphic version of the artwork.
