1. A touch screen comprising an image file containing metadata and data representing a visually perceptible image, an image analyzer for analyzing said data and metadata representing said visually perceptible image, said image analyzer including logic for recognizing and classifying objects represented and arranged in said image by identified type, mapping tactile attributes corresponding to each respective identified type and storing results of said recognizing and classifying of objects and said mapping of tactile attributes as metadata, and a microfluidic transducer for producing selectively raised areas of a surface to represent said tactile attributes of said recognized and classified objects and the arrangement of said objects in said image wherein height of said selectively raised areas represents distance from a viewing point in said image.