User Statistics

At the beginning of every session, the user was asked to specify his/her gender, age and rate his/her experience in Computer Graphics or Image Processing from a given list shown in the 'experience' figure below. The user location and display agent were identified automatically.

Total: 433 fully completed sessions (additional 191 partial sessions). 160 volunteers, 273 Mechanical Turk workers.

Reference version: 217 fully completed sessions (additional 155 partial sessions)

No-reference version: 216 fully completed sessions (additional 36 partial sessions)

The data for the following figures was drawn from fully completed sessions only, which are the user sessions we used for the analysis in the paper.