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#342 Initial BigTIFF support
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Harald Kuhr
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<html>
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<head>
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</head>
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<body>
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<p>
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These images were created by <a href="http://www.awaresystems.be/">AWare Systems</a>.
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</p>
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<h1>Index</h1>
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<p>
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<a href="#classic">Classic.tif</a><br>
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<a href="#bigtiff">BigTIFF.tif</a><br>
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<a href="#bigtiffmotorola">BigTIFFMotorola.tif</a><br>
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<a href="#bigtifflong">BigTIFFLong.tif</a><br>
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<a href="#bigtifflong8">BigTIFFLong8.tif</a><br>
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<a href="#bigtiffmotorolalongstrips">BigTIFFMotorolaLongStrips.tif</a><br>
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<a href="#bigtifflong8tiles">BigTIFFLong8Tiles.tif</a><br>
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<a href="#bigtiffsubifd4">BigTIFFSubIFD4.tif</a><br>
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<a href="#bigtiffsubifd8">BigTIFFSubIFD8.tif</a><br>
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</p>
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<h1 id="classic">Classic.tif</h1>
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<p>
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Classic.tif is a basic Classic TIFF file. All files in this package have the same actual image content,
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so this TIFF file serves as a reference.
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</p>
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<p>
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Format: Classic TIFF<br>
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Byte Order: Intel<br>
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Ifd Offset: 12302<br>
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ImageWidth (1 Short): 64<br>
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ImageLength (1 Short): 64<br>
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BitsPerSample (3 Short): 8, 8, 8<br>
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PhotometricInterpretation (1 Short): RGB<br>
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StripOffsets (1 Short): 8<br>
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SamplesPerPixel (1 Short): 3<br>
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RowsPerStrip (1 Short): 64<br>
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StripByteCounts (1 Short): 12288<br>
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</p>
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<h1 id="bigtiff">BigTIFF.tif</h1>
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<p>
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BigTIFF.tif ressembles Classic.tif as close as possible. Except that it's a BigTIFF, that is...
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</p>
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<p>
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Format: BigTIFF<br>
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Byte Order: Intel<br>
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Ifd Offset: 12304<br>
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ImageWidth (1 Short): 64<br>
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ImageLength (1 Short): 64<br>
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BitsPerSample (3 Short): 8, 8, 8<br>
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PhotometricInterpretation (1 Short): RGB<br>
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StripOffsets (1 Short): 16<br>
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SamplesPerPixel (1 Short): 3<br>
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RowsPerStrip (1 Short): 64<br>
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StripByteCounts (1 Short): 12288<br>
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</p>
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<h1 id="bigtiffmotorola">BigTIFFMotorola.tif</h1>
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<p>
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BigTIFFMotorola.tif reverses the byte order.
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</p>
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<p>
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Format: BigTIFF<br>
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Byte Order: Motorola<br>
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Ifd Offset: 12304<br>
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ImageWidth (1 Short): 64<br>
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ImageLength (1 Short): 64<br>
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BitsPerSample (3 Short): 8, 8, 8<br>
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PhotometricInterpretation (1 Short): RGB<br>
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StripOffsets (1 Short): 16<br>
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SamplesPerPixel (1 Short): 3<br>
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RowsPerStrip (1 Short): 64<br>
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StripByteCounts (1 Short): 12288<br>
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</p>
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<h1 id="bigtifflong">BigTIFFLong.tif</h1>
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<p>
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All previous TIFFs specify DataType Short for StripOffsets and StripByteCounts tags. This BigTIFF instead specifies DataType Long, for these tags.
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</p>
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<p>
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Format: BigTIFF<br>
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Byte Order: Intel<br>
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Ifd Offset: 12304<br>
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ImageWidth (1 Short): 64<br>
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ImageLength (1 Short): 64<br>
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BitsPerSample (3 Short): 8, 8, 8<br>
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PhotometricInterpretation (1 Short): RGB<br>
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StripOffsets (1 Long): 16<br>
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SamplesPerPixel (1 Short): 3<br>
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RowsPerStrip (1 Short): 64<br>
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StripByteCounts (1 Long): 12288<br>
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</p>
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<h1 id="bigtifflong8">BigTIFFLong8.tif</h1>
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<p>
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This next one specifies DataType Long8, for StripOffsets and StripByteCounts tags.
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</p>
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<p>
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Format: BigTIFF<br>
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Byte Order: Intel<br>
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Ifd Offset: 12304<br>
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ImageWidth (1 Short): 64<br>
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ImageLength (1 Short): 64<br>
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BitsPerSample (3 Short): 8, 8, 8<br>
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PhotometricInterpretation (1 Short): RGB<br>
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StripOffsets (1 Long8): 16<br>
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SamplesPerPixel (1 Short): 3<br>
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RowsPerStrip (1 Short): 64<br>
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StripByteCounts (1 Long8): 12288<br>
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</p>
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<h1 id="bigtiffmotorolalongstrips">BigTIFFMotorolaLongStrips.tif</h1>
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<p>
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This BigTIFF has Motorola byte order, plus, it's divided over two strips. StripOffsets and StripByteCounts tags have DataType Long, so their actual value fits inside the IFD.
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</p>
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<p>
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Format: BigTIFF<br>
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Byte Order: Motorola<br>
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Ifd Offset: 12304<br>
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ImageWidth (1 Short): 64<br>
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ImageLength (1 Short): 64<br>
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BitsPerSample (3 Short): 8, 8, 8<br>
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PhotometricInterpretation (1 Short): RGB<br>
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StripOffsets (2 Long): 16, 6160<br>
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SamplesPerPixel (1 Short): 3<br>
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RowsPerStrip (1 Short): 32<br>
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StripByteCounts (2 Long): 6144, 6144<br>
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</p>
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<h1 id="bigtifflong8tiles">BigTIFFLong8Tiles.tif</h1>
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<p>
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BigTIFFLong8Tiles.tif is a tiled BigTIFF. TileOffsets and TileByteCounts tags specify DataType Long8.
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</p>
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<p>
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Format: BigTIFF<br>
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Byte Order: Intel<br>
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Ifd Offset: 12368<br>
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ImageWidth (1 Short): 64<br>
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ImageLength (1 Short): 64<br>
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BitsPerSample (3 Short): 8, 8, 8<br>
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PhotometricInterpretation (1 Short): RGB<br>
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SamplesPerPixel (1 Short): 3<br>
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TileWidth (1 Short): 32<br>
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TileLength (1 Short): 32<br>
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TileOffsets (4 Long8): 16, 3088, 6160, 9232<br>
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TileByteCounts (4 Long8): 3072, 3072, 3072, 3072<br>
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</p>
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<h1 id="bigtiffsubifd4">BigTIFFSubIFD4.tif</h1>
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<p>
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This BigTIFF contains two pages, the second page showing almost the same image content as the first, except that the black square is white, and text color is black.
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Both pages point to a downsample SubIFD, using SubIFDs DataType TIFF_IFD.
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</p>
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<p>
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Format: BigTIFF<br>
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Byte Order: Intel<br>
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Ifd Offset: 15572<br>
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ImageWidth (1 Short): 64<br>
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ImageLength (1 Short): 64<br>
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BitsPerSample (3 Short): 8, 8, 8<br>
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PhotometricInterpretation (1 Short): RGB<br>
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StripOffsets (1 Short): 3284<br>
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SamplesPerPixel (1 Short): 3<br>
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RowsPerStrip (1 Short): 64<br>
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StripByteCounts (1 Short): 12288<br>
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SubIFDs (1 IFD): 3088<br>
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SubIfd Offset: 3088<br>
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NewSubFileType (1 Long): 1<br>
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ImageWidth (1 Short): 32<br>
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ImageLength (1 Short): 32<br>
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BitsPerSample (3 Short): 8, 8, 8<br>
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PhotometricInterpretation (1 Short): RGB<br>
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StripOffsets (1 Short): 16<br>
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SamplesPerPixel (1 Short): 3<br>
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RowsPerStrip (1 Short): 32<br>
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StripByteCounts (1 Short): 3072<br>
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Ifd Offset: 31324<br>
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ImageWidth (1 Short): 64<br>
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ImageLength (1 Short): 64<br>
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BitsPerSample (3 Short): 8, 8, 8<br>
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PhotometricInterpretation (1 Short): RGB<br>
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StripOffsets (1 Short): 19036<br>
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SamplesPerPixel (1 Short): 3<br>
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RowsPerStrip (1 Short): 64<br>
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StripByteCounts (1 Short): 12288<br>
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SubIFDs (1 IFD): 18840<br>
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SubIfd Offset: 18840<br>
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NewSubFileType (1 Long): 1<br>
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ImageWidth (1 Short): 32<br>
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ImageLength (1 Short): 32<br>
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BitsPerSample (3 Short): 8, 8, 8<br>
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PhotometricInterpretation (1 Short): RGB<br>
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StripOffsets (1 Short): 15768<br>
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SamplesPerPixel (1 Short): 3<br>
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RowsPerStrip (1 Short): 32<br>
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StripByteCounts (1 Short): 3072<br>
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</p>
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<h1 id="bigtiffsubifd8">BigTIFFSubIFD8.tif</h1>
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<p>
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BigTIFFSubIFD4.tif is very much the same as BigTIFFSubIFD4.tif, except that the new DataType TIFF_IFD8 is used for the SubIFDs tag.
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</p>
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<p>
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Format: BigTIFF<br>
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Byte Order: Intel<br>
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Ifd Offset: 15572<br>
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ImageWidth (1 Short): 64<br>
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ImageLength (1 Short): 64<br>
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BitsPerSample (3 Short): 8, 8, 8<br>
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PhotometricInterpretation (1 Short): RGB<br>
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StripOffsets (1 Short): 3284<br>
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SamplesPerPixel (1 Short): 3<br>
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RowsPerStrip (1 Short): 64<br>
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StripByteCounts (1 Short): 12288<br>
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SubIFDs (1 IFD8): 3088<br>
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SubIfd Offset: 3088<br>
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NewSubFileType (1 Long): 1<br>
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ImageWidth (1 Short): 32<br>
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ImageLength (1 Short): 32<br>
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BitsPerSample (3 Short): 8, 8, 8<br>
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PhotometricInterpretation (1 Short): RGB<br>
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StripOffsets (1 Short): 16<br>
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SamplesPerPixel (1 Short): 3<br>
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RowsPerStrip (1 Short): 32<br>
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StripByteCounts (1 Short): 3072<br>
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Ifd Offset: 31324<br>
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ImageWidth (1 Short): 64<br>
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ImageLength (1 Short): 64<br>
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BitsPerSample (3 Short): 8, 8, 8<br>
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PhotometricInterpretation (1 Short): RGB<br>
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StripOffsets (1 Short): 19036<br>
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SamplesPerPixel (1 Short): 3<br>
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RowsPerStrip (1 Short): 64<br>
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StripByteCounts (1 Short): 12288<br>
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SubIFDs (1 IFD8): 18840<br>
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SubIfd Offset: 18840<br>
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NewSubFileType (1 Long): 1<br>
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ImageWidth (1 Short): 32<br>
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ImageLength (1 Short): 32<br>
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BitsPerSample (3 Short): 8, 8, 8<br>
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PhotometricInterpretation (1 Short): RGB<br>
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StripOffsets (1 Short): 15768<br>
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SamplesPerPixel (1 Short): 3<br>
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RowsPerStrip (1 Short): 32<br>
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StripByteCounts (1 Short): 3072<br>
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</p>
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</body>
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</html>
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