90 lines
2.8 KiB
HTML
90 lines
2.8 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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"http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- (this file generated automatically by Image::ExifTool::BuildTagLookup) -->
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<head>
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<title>JFIF Tags</title>
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<link rel=stylesheet type='text/css' href='style.css' title='Style'>
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</head>
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<body>
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<h2 class=top>JFIF Tags</h2>
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<p>
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The following information is extracted from the JPEG JFIF header. See
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<a href="https://www.w3.org/Graphics/JPEG/jfif3.pdf">https://www.w3.org/Graphics/JPEG/jfif3.pdf</a> for the JFIF 1.02
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specification.
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</p>
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<blockquote>
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<table class=frame><tr><td>
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<table class=inner cellspacing=1>
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<tr class=h><th>Index1</th><th>Tag Name</th>
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<th>Writable</th><th>Values / <span class=n>Notes</span></th></tr>
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<tr>
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<td class=r title='0 = 0x0'>0</td>
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<td>JFIFVersion</td>
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<td class=c title=' : = Mandatory'>no:</td>
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<td> </td></tr>
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<tr class=b>
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<td class=r title='2 = 0x2'>2</td>
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<td>ResolutionUnit</td>
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<td class=c title=' : = Mandatory'>int8u:</td>
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<td><span class=s>0 = None
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<br>1 = inches
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<br>2 = cm</span></td></tr>
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<tr>
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<td class=r title='3 = 0x3'>3</td>
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<td>XResolution</td>
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<td class=c title=' : = Mandatory'>int16u:</td>
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<td> </td></tr>
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<tr class=b>
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<td class=r title='5 = 0x5'>5</td>
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<td>YResolution</td>
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<td class=c title=' : = Mandatory'>int16u:</td>
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<td> </td></tr>
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<tr>
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<td class=r title='7 = 0x7'>7</td>
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<td>ThumbnailWidth</td>
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<td class=c>no</td>
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<td> </td></tr>
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<tr class=b>
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<td class=r title='8 = 0x8'>8</td>
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<td>ThumbnailHeight</td>
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<td class=c>no</td>
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<td> </td></tr>
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<tr>
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<td class=r title='9 = 0x9'>9</td>
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<td>ThumbnailTIFF</td>
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<td class=c>no</td>
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<td><span class=s><span class=n>(raw RGB thumbnail data, extracted as a TIFF image)</span></span></td></tr>
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</table></td></tr></table></blockquote>
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<h2><a name='Extension'>JFIF Extension Tags</a></h2>
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<p>Thumbnail images extracted from the JFXX segment.</p>
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<blockquote>
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<table class=frame><tr><td>
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<table class=inner cellspacing=1>
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<tr class=h><th>Tag ID</th><th>Tag Name</th>
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<th>Writable</th><th>Values / <span class=n>Notes</span></th></tr>
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<tr>
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<td title='0x0010 = 16'>0x0010</td>
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<td>ThumbnailImage</td>
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<td class=c>no</td>
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<td><span class=s><span class=n>(JPEG-format thumbnail image)</span></span></td></tr>
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<tr class=b>
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<td title='0x0011 = 17'>0x0011</td>
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<td>ThumbnailTIFF</td>
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<td class=c>no</td>
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<td><span class=s><span class=n>(raw palette-color thumbnail data, extracted as a TIFF image)</span></span></td></tr>
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<tr>
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<td title='0x0013 = 19'>0x0013</td>
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<td>ThumbnailTIFF</td>
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<td class=c>no</td>
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<td><span class=s><span class=n>(raw RGB thumbnail data, extracted as a TIFF image)</span></span></td></tr>
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</table></td></tr></table></blockquote>
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<hr>
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(This document generated automatically by Image::ExifTool::BuildTagLookup)
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<br><i>Last revised Jul 21, 2017</i>
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<p class=lf><a href='index.html'><-- ExifTool Tag Names</a></p>
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</body>
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</html>
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