1. A method for reducing view-dependent artifacts in a multi-projector system, the method being carried out by a computer device having a processor and system memory, comprising the steps of: a) measuring, from multiple viewpoints, and inputting into the computer, data relating to projection characteristics of an image projected by a multi-projector system; b) the computer mapping the multiple viewpoints to a common coordinate system; c) the computer estimating view-dependent projection parameters that can reduce view-dependent artifacts; and d) the computer computing rendering parameters for each projector so as to reduce the view-dependent artifacts.