Anybody know what is inside a Photoshop generated 16-bit tif file?
You can download the freely available program 'tiffinfo' what lets you see all kinds of metadata stored in a tiff file. I ran it on an image and here is what I got:
TIFF Directory at offset 0x8 ( 8 )
Subfile Type: (0 = 0x0)
Image Width: 560 Image Length: 277
Resolution: 240, 240 pixels/inch
Bits/Sample: 16
Compression Scheme: LZW
Photometric Interpretation: RGB color
Orientation: row 0 top, col 0 lhs
Samples/Pixel: 3
Rows/Strip: 78
Planar Configuration: single image plane
Make: PENTAX
Model: PENTAX K-5 II s
Software: Adobe Photoshop CS3 Macintosh
DateTime: 2013:02:06 07:21:58
XMLPacket (XMP Metadata):
<?xpacket begin="Ôªø" id="W5M0MpCehiHzreSzNTczkc9d"?>
<x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 4.1-c036 46.276720, Mon Feb 19 2007 22:13:43 ">
<rdf:RDF xmlns:rdf="
http://www.w3.org/1999/02/22-rdf-syntax-ns#">
<rdf:Description rdf:about=""
xmlns:tiff="
http://ns.adobe.com/tiff/1.0/">
<tiff:Make>PENTAX</tiff:Make>
<tiff:Model>PENTAX K-5 II s</tiff:Model>
<tiff:Orientation>1</tiff:Orientation>
<tiff:XResolution>2400000/10000</tiff:XResolution>
<tiff:YResolution>2400000/10000</tiff:YResolution>
<tiff:ResolutionUnit>2</tiff:ResolutionUnit>
<tiff:NativeDigest>256,257,258,259,262,274,277,284,530,531,282,283,296,301,318,319,529,532,306,270,271,272,305,315,33432;AA09D8EA1862955C3B995A65F60A16EE</tiff:NativeDigest>
<tiff:ImageWidth>560</tiff:ImageWidth>
<tiff:ImageLength>277</tiff:ImageLength>
<tiff:BitsPerSample>
<rdf:Seq>
<rdf:li>16</rdf:li>
<rdf:li>16</rdf:li>
<rdf:li>16</rdf:li>
</rdf:Seq>
</tiff:BitsPerSample>
<tiff:Compression>5</tiff:Compression>
<tiff:PhotometricInterpretation>2</tiff:PhotometricInterpretation>
<tiff:SamplesPerPixel>3</tiff:SamplesPerPixel>
<tiff:PlanarConfiguration>1</tiff:PlanarConfiguration>
</rdf:Description>
<rdf:Description rdf:about=""
xmlns:exif="
http://ns.adobe.com/exif/1.0/">
<exif:DateTimeOriginal>2012-10-30T18:06:20Z</exif:DateTimeOriginal>
<exif:DateTimeDigitized>2012-10-30T18:06:20Z</exif:DateTimeDigitized>
<exif:ExposureTime>1/180</exif:ExposureTime>
<exif:ISOSpeedRatings>
<rdf:Seq>
<rdf:li>100</rdf:li>
</rdf:Seq>
</exif:ISOSpeedRatings>
<exif:ShutterSpeedValue>7491853/1000000</exif:ShutterSpeedValue>
<exif:ExposureBiasValue>0/10</exif:ExposureBiasValue>
<exif:MeteringMode>2</exif:MeteringMode>
<exif:Flash rdf:parseType="Resource">
<exif:Fired>True</exif:Fired>
<exif:Return>0</exif:Return>
<exif:Mode>1</exif:Mode>
<exif:Function>False</exif:Function>
<exif:RedEyeMode>False</exif:RedEyeMode>
</exif:Flash>
<exif:CustomRendered>0</exif:CustomRendered>
<exif:ExposureMode>1</exif:ExposureMode>
<exif:WhiteBalance>0</exif:WhiteBalance>
<exif:PixelXDimension>560</exif:PixelXDimension>
<exif:PixelYDimension>277</exif:PixelYDimension>
<exif:ColorSpace>1</exif:ColorSpace>
<exif:NativeDigest>36864,40960,40961,37121,37122,40962,40963,37510,40964,36867,36868,33434,33437,34850,34852,34855,34856,37377,37378,37379,37380,37381,37382,37383,37384,37385,37386,37396,41483,41484,41486,41487,41488,41492,41493,41495,41728,41729,41730,41985,41986,41987,41988,41989,41990,41991,41992,41993,41994,41995,41996,42016,0,2,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,20,22,23,24,25,26,27,28,30;9743F18454296DAFB5384D863782E8D3</exif:NativeDigest>
</rdf:Description>
<rdf:Description rdf:about=""
xmlns:xap="
http://ns.adobe.com/xap/1.0/">
<xap:CreateDate>2013-02-06T07:21:58Z</xap:CreateDate>
<xap:ModifyDate>2013-02-06T07:21:58Z</xap:ModifyDate>
<xap:MetadataDate>2013-02-06T07:21:58Z</xap:MetadataDate>
<xap:CreatorTool>Adobe Photoshop CS3 Macintosh</xap:CreatorTool>
</rdf:Description>
<rdf:Description rdf:about=""
xmlns:dc="
http://purl.org/dc/elements/1.1/">
<dc:format>image/tiff</dc:format>
</rdf:Description>
<rdf:Description rdf:about=""
xmlns:photoshop="
http://ns.adobe.com/photoshop/1.0/">
<photoshop:ColorMode>3</photoshop:ColorMode>
<photoshop:ICCProfile>sRGB IEC61966-2.1</photoshop:ICCProfile>
<photoshop:History/>
</rdf:Description>
<rdf:Description rdf:about=""
xmlns:xapMM="
http://ns.adobe.com/xap/1.0/mm/">
<xapMM:DerivedFrom rdf:parseType="Resource"/>
<xapMM:InstanceID>uuid:E868612BC071E211A01FEC1E81316C37</xapMM:InstanceID>
<xapMM:DocumentID>uuid:E768612BC071E211A01FEC1E81316C37</xapMM:DocumentID>
</rdf:Description>
</rdf:RDF>
</x:xmpmeta>
<?xpacket end="w"?>
RichTIFFIPTC Data: <present>, 64 bytes
Photoshop Data: <present>, 10784 bytes
EXIFIFDOffset: 658496
ICC Profile: <present>, 3144 bytes
TIFF Directory at offset 0xa0c40 (658496)
ExposureTime: 0.005556
ISOSpeedRatings: 100
DateTimeOriginal: 2012:10:30 18:06:20
DateTimeDigitized: 2012:10:30 18:06:20
ShutterSpeedValue: 7.491853
ExposureBiasValue: 0.000000
MeteringMode: 2
Flash: 9
ColorSpace: 1
PixelXDimension: 560
PixelYDimension: 277
CustomRendered: 0
ExposureMode: 1
WhiteBalance: 0