VujaDessin: A Sketch Learning Support System Using a Blurred Motif Object

Abstract

Sketch is a creative activity that anybody can start casually and often used as training to begin a full-fledged painting. Since beginners sometimes feel difficulty to draw accurate sketch, various tutoring systems of sketch have been developed. However, some problems about seeing motif object have not been solved. First, they often have difficulty to grasp the entirety of the object and fail to draw balanced sketch. Second, they have difficulty to draw exactly what they saw due to labeling of conceptual meaning. We assumed that these problems are caused by their inappropriate way of seeing motif object: an excessive focus on detail of specific part. In order to solve these problems, we proposed sketch learning support system VujaDessin. This system prompts users to see the entirety of the motif object by blurring motif image when focus on detail parts is detected. We conducted user study of the system targeting two subjects to evaluate the system effectiveness. While the system did not provide positive effect to quality of outcome, we confirmed generated blur changed users seeing behavior. The system possibly encouraged users to see entire motif object including peripheral parts in a more exploratory way. Further system development and study is required in order to support beginners who strongly feel they are not good at drawing and confirm the long-term learning effect.