Studied preattentive evaluation processes in the perception of pictures of houses and how quickly judgments are made. In order to test whether evaluation processes are based on structural features of the objects or on semantic analysis, 10 different photographs of houses were presented to 60 subjects randomly assigned to one of the following conditions: (1) suprathreshold, (2) subliminal, upright and (3) subliminal, upside down. In the third condition the semantic contents of the pictures was expected to change. After each picture presentation subjects were asked to judge their perceptual impression on a set of different scales. The results showed only small differences in their mean evaluative judgments of the houses in suprathreshold and subliminal upright presentation. Cluster analysis suggests that, in addition to processing structural information, complex relations between the stimuli within a scene are analyzed.