HD Photo is a new file format for continuous-tone still images that surpasses the limitations of existing image formats. HD Photo supports a wide range of features including: • Multiple color formats for display or print • Fixed or floating point high dynamic range image encoding • Lossless or high quality lossy compression • Extremely efficient decoding for multiple resolutions and sub-regions • Minimal overhead for format conversion or transformations during decode. HD Photo is used in XML Paper Specification (XPS) to delivers a lightweight, high performance algorithm with a small memory footprint that enables practical, in-device encoding and decoding. It delivers compression quality comparable with JPEG-2000 and more than twice the quality of JPEG.
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