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High Dynamic Range Imaging, 2nd Edition by Karol Myszkowski, Greg Ward, Sumanta Pattanaik, Paul Debevec, Wolfgang Heidrich, Erik Reinhard

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Image-Based Lighting

11

The earlier chapters in this book have described numerous properties and advantages of high dynamic range (HDR) imagery. A major advantage is that HDR pixel values can cover the full range of light in a scene and can be stored as calibrated linear-response measurements of incident illumination. Earlier chapters have described how these images are useful for improved image processing, and for determining how a human observer might perceive a real-world scene, even if shown on a low dynamic range (LDR) display.

This chapter describes how HDR images can be used as sources of illumination for computer-generated objects and scenes. Because HDR images record the full range of light arriving at a point in space, they contain ...

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