Groups of subjects judged one example of two different types of outdoor scene on each of the items of the Perceived Restorative Scale, on two preference scales and a familiarity scale. It was argued that the previously demonstrated large variations in preference between different types of scenes were the result of participants using the restorative value of a scene as an implicit frame of reference for the preference judgment. Preference and the Perceived Restorative Scale score correlated .81, whereas familiarity and the Restorative Scale correlated .31, and preference and familiarity correlated .32. This result supports the hypothesis regarding the use of the restorative value of a scene as an implicit frame of reference for preference judgments. It is further argued that variations in the preference and restorative value of scenes may be associated with fractal geometry.