Chapter 12

High Dynamic Range Imaging with JPEG XT

T. Richter    University of Stuttgart, Stuttgart, Germany


JPEG XT (ISO/IEC 18477), the latest standardization initiative of the JPEG (ISO SC29WG01) committee, defines an image compression standard backward compatible with the well-known JPEG standard (ISO/IEC 10918-1). JPEG XT extends JPEG by features such as coding of images of higher bit depth, coding of floating point image formats representing high dynamic range images, lossless compression, and coding of alpha channels. All extensions are compatible with the legacy JPEG standard, and always allow the reconstruction of JPEG XT codestreams to images of eight bits per pixel. This chapter discusses the history and motivation for ...

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