Image-Based Relighting Using Environment Maps

An image-based relighting algorithm has been extended so that it can accommodate environment based lighting. Camera mounted flash photographs, employed in the original relighting algorithm, are also used to achieve the environment map based relighting results. In addition to preserving the simple equipment and setup utilized in the original relighting approach, the new method allows professional studio lighting effects, simulation of museum gallery illumination, and outdoor lighting at particular times of the day and year.