Images of the same scene may be combined together to produce a single image of greater resolution and spatial extent[8]. Within the context of personal imaging, this results in an automated and natural process of generating environment maps by looking around in a space, so that it can be relegated to a background task, that is, environment maps are generated by the pencigraphic imaging agent, and transmitted to the World Wide Web so that others can share in the day-to-day experiences of the wearer[6]. Differently exposed images may be combined to increase dynamic range and image definition[15][9][10], as well as for artistic/expressive effect.