http://fileformats.archiveteam.org/index.php?action=history&feed=atom&title=PHM 2026-04-12T17:49:39Z Revision history for this page on the wiki MediaWiki 1.19.2 http://fileformats.archiveteam.org/index.php?title=PHM&diff=44363&oldid=prev 2023-04-02T13:15:40Z

<p>Created page with &quot;{{FormatInfo |formattype=electronic |subcat=Graphics |extensions={{ext|phm}} |released=2015 }} &#039;&#039;&#039;PHM&#039;&#039;&#039; is a raster image format. It is an extension of the <a href="/wiki/Netpbm_formats" title="Netpbm formats">Netpbm formats</a>...&quot;</p> <p><b>New page</b></p><div>{{FormatInfo<br /> |formattype=electronic<br /> |subcat=Graphics<br /> |extensions={{ext|phm}}<br /> |released=2015<br /> }}<br /> '''PHM''' is a raster image format. It is an extension of the [[Netpbm formats]], especially [[PFM (Portable Float Map)|PFM]]. Each color sample is a 16-bit floating-point number.<br /> <br /> Its full name is variously given as &quot;Portable Float Map with 16-bit Half&quot;, &quot;Simple Portable Half Float Map&quot;, &quot;Portable HalfFloatMap&quot;, etc.<br /> <br /> == Identification ==<br /> Grayscale PHM files start with bytes {{magic|'P' 'h' 0x0a}}.<br /> <br /> RGB color PHM files start with bytes {{magic|'P' 'H' 0x0a}}.<br /> <br /> == Software ==<br /> * [[FFmpeg]]<br /> * [https://github.com/syoyo/libphm libphm]<br /> <br /> == Sample files ==<br /> * https://github.com/syoyo/libphm/blob/main/asakusa.phm<br /> <br /> == Links ==<br /> * [http://www.oyranos.org/2015/03/portable-float-map-with-16-bit-half/ Oyranos: Portable Float Map with 16-bit Half]</div>

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