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<title>Radiance Tags</title>
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<h2 class=top>Radiance Tags</h2>
<p>Information extracted from Radiance RGBE HDR images. Tag ID's are all
uppercase as stored in the file, but converted to lowercase by when
extracting to avoid conflicts with internal ExifTool variables. See
<a href="http://radsite.lbl.gov/radiance/refer/filefmts.pdf">http://radsite.lbl.gov/radiance/refer/filefmts.pdf</a> and
<a href="http://www.graphics.cornell.edu/online/formats/rgbe/">http://www.graphics.cornell.edu/online/formats/rgbe/</a> for the
specification.</p>
<blockquote>
<table class=frame><tr><td>
<table class=inner cellspacing=1>
<tr class=h><th>Tag ID</th><th>Tag Name</th>
<th>Writable</th><th>Values / <span class=n>Notes</span></th></tr>
<tr>
<td>'_command'</td>
<td>Command</td>
<td class=c>N</td>
<td> </td></tr>
<tr class=b>
<td>'_orient'</td>
<td>Orientation</td>
<td class=c>N</td>
<td><table class=cols><tr>
<td>'+X +Y' = Rotate 90 CW
<br>'+X -Y' = Mirror horizontal and rotate 270 CW
<br>'+Y +X' = Mirror vertical
<br>'+Y -X' = Rotate 180
<br>'-X +Y' = Mirror horizontal and rotate 90 CW
<br>'-X -Y' = Rotate 270 CW
<br>'-Y +X' = Horizontal (normal)
<br>'-Y -X' = Mirror horizontal</td></tr></table>
</td></tr>
<tr>
<td>'colorcorr'</td>
<td>ColorCorrection</td>
<td class=c>N</td>
<td> </td></tr>
<tr class=b>
<td>'exposure'</td>
<td>Exposure</td>
<td class=c>N</td>
<td><span class=s><span class=n>(divide pixel values by this to get watts/steradian/meter^2)</span></span></td></tr>
<tr>
<td>'format'</td>
<td>Format</td>
<td class=c>N</td>
<td> </td></tr>
<tr class=b>
<td>'gamma'</td>
<td>Gamma</td>
<td class=c>N</td>
<td> </td></tr>
<tr>
<td>'pixaspect'</td>
<td>PixelAspectRatio</td>
<td class=c>N</td>
<td> </td></tr>
<tr class=b>
<td>'primaries'</td>
<td>ColorPrimaries</td>
<td class=c>N</td>
<td> </td></tr>
<tr>
<td>'software'</td>
<td>Software</td>
<td class=c>N</td>
<td> </td></tr>
<tr class=b>
<td>'view'</td>
<td>View</td>
<td class=c>N</td>
<td> </td></tr>
</table></td></tr></table></blockquote>
<hr>
(This document generated automatically by Image::ExifTool::BuildTagLookup)
<br><i>Last revised Dec 14, 2011</i>
<p class=lf><a href='index.html'><-- ExifTool Tag Names</a></p>
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