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    <p>Microsoft HD Photo Format supports 128bpp floating point for RGB and RGBA</p> <p><a href="http://msdn.microsoft.com/en-us/library/windows/desktop/gg430023%28v=vs.85%29.aspx" rel="nofollow">HD Photo Format Overview</a></p> <p><a href="http://msdn.microsoft.com/en-us/library/windows/desktop/ee719797%28v=vs.85%29.aspx" rel="nofollow">Native Pixel Formats Overview</a></p> <p>Search for the following on the <strong>Native Pixel Formats</strong> page</p> <pre><code>GUID_WICPixelFormat128bppRGBFloat GUID_WICPixelFormat128bppRGBAFloat </code></pre> <p>EDIT:</p> <p>For the benefit of others who are interested in this format:</p> <p>Microsoft submitted this format for standardization as <a href="http://en.wikipedia.org/wiki/JPEG_XR" rel="nofollow">JPEG XR</a>. In July 2010, reference software to implement the JPEG XR standard was published as <a href="http://www.microsoft.com/download/en/details.aspx?displaylang=en&amp;id=1915" rel="nofollow">ITU-T Recommendation T.835</a> and International Standard ISO/IEC 29199-5. The bitstream specification of the JPEG XR standard can be downloaded from ITU-T at <a href="http://www.itu.int/rec/T-REC-T.832" rel="nofollow">http://www.itu.int/rec/T-REC-T.832</a></p> <p>Key benefits of the HD Photo/ JPEG XR - </p> <ul> <li>Multiple color formats for display or print</li> <li>Fixed or floating point high dynamic range (HDR) image encoding</li> <li>Lossless or high quality lossy compression</li> <li>Extremely efficient decoding for multiple resolutions and sub-regions (The ability to decode only the information needed for any resolution or region and to manipulate the image as compressed data)</li> <li>Minimal overhead for format conversion or transformations during decode</li> </ul> <p>Microsoft released a <a href="http://msdn.microsoft.com/en-us/windows/hardware/gg463381" rel="nofollow">Device Porting Kit (DPK)</a> providing implementation details for encoder/decoder, including sample reference code for use with Unix/Linux platforms.</p>
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    1. POsimple 32bit floatingpoint image format?
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    1. COthanks for that - although i'm on windows, i should stay multiplatform though
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    2. COCheers for that overview! A while ago, I asked about JPEG-XR on MSDN forums and received similar answer, but points to older ref software package. http://social.msdn.microsoft.com/Forums/en-US/windowswic/thread/dfdd2455-f2fc-4f51-b528-affade3374a1
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