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Changeset 224 for exifer

Timestamp:

08/16/07 12:55:46 (17 months ago)

Author:

082net

Message:

## exifer ##

exifer version 1.6 update (zenphoto)

Location:

exifer/trunk/lib

Files:

: 7 modified

exif.php (modified) (2 diffs)
makers/canon.php (modified) (3 diffs)
makers/fujifilm.php (modified) (1 diff)
makers/gps.php (modified) (1 diff)
makers/nikon.php (modified) (1 diff)
makers/olympus.php (modified) (1 diff)
makers/sanyo.php (modified) (1 diff)

Legend:

: Unmodified
: Added
: Removed

exifer/trunk/lib/exif.php

r21	r224
1		<?
2		//================================================================================================
3		//================================================================================================
4		//================================================================================================
	1	<?php
5	2	/*
6		Exifer 1.5
7		Extracts EXIF information from digital photos.
8
9		Copyright � 2005 Jake Olefsky
10		http://www.offsky.com/software/exif/index.php
11		jake@olefsky.com
12
13		This program is free software; you can redistribute it and/or modify it under the terms of
14		the GNU General Public License as published by the Free Software Foundation; either version 2
15		of the License, or (at your option) any later version.
16
17		This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
18		without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
19		See the GNU General Public License for more details. http://www.gnu.org/copyleft/gpl.html
20
21		SUMMARY:
22		This script will correctly parse all of the EXIF data included in images taken
23		with digital cameras. It will read the IDF0, IDF1, SubIDF and InteroperabilityIFD
24		fields as well as parsing some of the MakerNote fields that vary depending on
25		camera make and model. This script parses more tags than the internal PHP exif
26		implementation and it will correctly identify and decode what all the values mean.
27
28		This version will correctly parse the MakerNote field for Nikon, Olympus, and Canon
29		digital cameras. Others will follow.
30
31		TESTED WITH:
32		Nikon CoolPix 700
33		Nikon CoolPix 4500
34		Nikon CoolPix 950
35		Nikon Coolpix 5700
36		Canon PowerShot S200
37		Canon PowerShot S110
38		Olympus C2040Z
39		Olympus C960
40		Canon Ixus
41		Canon EOS 300D
42		Canon Digital Rebel
43		Canon EOS 10D
44		Canon PowerShot G2
45		FujiFilm DX 10
46		FujiFilm MX-1200
47		FujiFilm FinePix2400
48		FujiFilm FinePix2600
49		FujiFilm FinePix S602
50		FujiFilm FinePix40i
51		Sony D700
52		Sony Cybershot
53		Kodak DC210
54		Kodak DC240
55		Kodak DC4800
56		Kodak DX3215
57		Ricoh RDC-5300
58		Sanyo VPC-G250
59		Sanyo VPC-SX550
60		Epson 3100z
61
62		If you improve this script or test it with a camera not on my list, please email me a copy of
63		the improvement so everyone can benefit from it. Thanks!
64
65
66		VERSION HISTORY:
67
68		1.0 Sept 23, 2002
69
70		First Public Release
71
72		1.1 Jan 25, 2003
73
74		+Gracefully handled the error case where you pass an empty string to this library
75		+Fixed an inconsistency in the Olympus Camera parsing module
76		+Added support for parsing the MakerNote of Canon images.
77		+Modified how the imagefile is opened so it works for windows machines.
78		+Correctly parses the FocalPlaneResolutionUnit and PhotometricInterpretation fields
79		+Negative rational numbers are properly displayed
80		+Strange old cameras that use Motorola endineness are now properly supported
81		+Tested with several more cameras
82
83		Potential Problem: Negative Shorts and Negative Longs may not be correctly displayed, but I
84		have not yet found an example of negative shorts or longs being used.
85
86		1.2 Mar 30, 2003
87
88		+Fixed an error that was displayed if you edited your image with WinXP's image viewer
89		+Fixed a bug that caused some images saved from 3rd party software to not parse correctly
90		+Changed the ExposureTime tag to display in fractional seconds rather than decimal
91		+Updated the ShutterSpeedValue tag to have the units of 'sec'
92		+Added support for parsing the MakeNote of FujiFilm images
93		+Added support for parsing the MakeNote of Sanyo images
94		+Fixed a bug with parsing some Olympus MakerNote tags
95		+Tested with several more cameras
96
97		1.3 Jun 15, 2003
98
99		+Fixed Canon MakerNote support for some models
100		(Canon has very difficult and inconsistent MakerNote syntax)
101		+Negative signed shorts and negative signed longs are properly displayed
102		+Several more tags are defined
103		+More information in my comments about what each tag is
104		+Parses and Displays GPS information if available
105		+Tested with several more cameras
106
107		1.4 Sept 14, 2003
108
109		+This software is now licensed under the GNU General Public License
110		+Exposure time is now correctly displayed when the numerator is 10
111		+Fixed the calculation and display of ShutterSpeedValue, ApertureValue and MaxApertureValue
112		+Fixed a bug with the GPS code
113		+Tested with several more cameras
114
115		1.5 Feb 18, 2005
116
117		+It now gracefully deals with a passed in file that cannot be found.
118		+Fixed a GPS bug for the parsing of Altitude and other signed rational numbers
119		+Defined more values for Canon cameras.
120		+Added "bulb" detection for ShutterSpeed
121		+Made script loading a little faster and less memory intensive.
122		+Bug fixes
123		+Better error reporting
124		+Graceful failure for files with corrupt exif info.
125		+QuickTime (including iPhoto) messes up the Makernote tag for certain photos (no workaround yet)
126		+Now reads exif information when the jpeg markers are out of order
127		+Gives raw data output for IPTC, COM and APP2 fields which are sometimes set by other applications
128		+Improvements to Nikon Makernote parsing
	3	Exifer 1.6
	4	Extracts EXIF information from digital photos.
	5
	6	Originally created by:
	7	Copyright � 2005 Jake Olefsky
	8	http:// www.offsky.com/software/exif/index.php
	9	jake@olefsky.com
	10
	11	This program is free software; you can redistribute it and/or modify it under the terms of
	12	the GNU General Public License as published by the Free Software Foundation; either version 2
	13	of the License, or (at your option) any later version.
	14
	15	This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
	16	without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
	17	See the GNU General Public License for more details. http:// www.gnu.org/copyleft/gpl.html
	18
	19	SUMMARY:
	20	This script will correctly parse all of the EXIF data included in images taken
	21	with digital cameras. It will read the IDF0, IDF1, SubIDF and InteroperabilityIFD
	22	fields as well as parsing some of the MakerNote fields that vary depending on
	23	camera make and model. This script parses more tags than the internal PHP exif
	24	implementation and it will correctly identify and decode what all the values mean.
	25
	26	This version will correctly parse the MakerNote field for Nikon, Olympus, and Canon
	27	digital cameras. Others will follow.
	28
	29	TESTED WITH:
	30	Nikon CoolPix 700
	31	Nikon CoolPix E3200
	32	Nikon CoolPix 4500
	33	Nikon CoolPix 950
	34	Nikon Coolpix 5700
	35	Canon PowerShot S200
	36	Canon PowerShot S110
	37	Olympus C2040Z
	38	Olympus C960
	39	Olumpus E-300
	40	Olympus E-500
	41	Canon Ixus
	42	Canon EOS 300D
	43	Canon Digital Rebel
	44	Canon EOS 10D
	45	Canon PowerShot G2
	46	FujiFilm DX 10
	47	FujiFilm MX-1200
	48	FujiFilm FinePix2400
	49	FujiFilm FinePix2600
	50	FujiFilm FinePix S602
	51	FujiFilm FinePix40i
	52	Sony D700
	53	Sony Cybershot
	54	Kodak DC210
	55	Kodak DC240
	56	Kodak DC4800
	57	Kodak DX3215
	58	Ricoh RDC-5300
	59	Sanyo VPC-G250
	60	Sanyo VPC-SX550
	61	Epson 3100z
	62
	63
	64	VERSION HISTORY:
	65
	66	1.0 September 23, 2002
	67
	68	+ First Public Release
	69
	70	1.1 January 25, 2003
	71
	72	+ Gracefully handled the error case where you pass an empty string to this library
	73	+ Fixed an inconsistency in the Olympus Camera parsing module
	74	+ Added support for parsing the MakerNote of Canon images.
	75	+ Modified how the imagefile is opened so it works for windows machines.
	76	+ Correctly parses the FocalPlaneResolutionUnit and PhotometricInterpretation fields
	77	+ Negative rational numbers are properly displayed
	78	+ Strange old cameras that use Motorola endineness are now properly supported
	79	+ Tested with several more cameras
	80
	81	Potential Problem: Negative Shorts and Negative Longs may not be correctly displayed, but I
	82	have not yet found an example of negative shorts or longs being used.
	83
	84	1.2 March 30, 2003
	85
	86	+ Fixed an error that was displayed if you edited your image with WinXP's image viewer
	87	+ Fixed a bug that caused some images saved from 3rd party software to not parse correctly
	88	+ Changed the ExposureTime tag to display in fractional seconds rather than decimal
	89	+ Updated the ShutterSpeedValue tag to have the units of 'sec'
	90	+ Added support for parsing the MakeNote of FujiFilm images
	91	+ Added support for parsing the MakeNote of Sanyo images
	92	+ Fixed a bug with parsing some Olympus MakerNote tags
	93	+ Tested with several more cameras
	94
	95	1.3 June 15, 2003
	96
	97	+ Fixed Canon MakerNote support for some models
	98	(Canon has very difficult and inconsistent MakerNote syntax)
	99	+ Negative signed shorts and negative signed longs are properly displayed
	100	+ Several more tags are defined
	101	+ More information in my comments about what each tag is
	102	+ Parses and Displays GPS information if available
	103	+ Tested with several more cameras
	104
	105	1.4 September 14, 2003
	106
	107	+ This software is now licensed under the GNU General Public License
	108	+ Exposure time is now correctly displayed when the numerator is 10
	109	+ Fixed the calculation and display of ShutterSpeedValue, ApertureValue and MaxApertureValue
	110	+ Fixed a bug with the GPS code
	111	+ Tested with several more cameras
	112
	113	1.5 February 18, 2005
	114
	115	+ It now gracefully deals with a passed in file that cannot be found.
	116	+ Fixed a GPS bug for the parsing of Altitude and other signed rational numbers
	117	+ Defined more values for Canon cameras.
	118	+ Added 'bulb' detection for ShutterSpeed
	119	+ Made script loading a little faster and less memory intensive.
	120	+ Bug fixes
	121	+ Better error reporting
	122	+ Graceful failure for files with corrupt exif info.
	123	+ QuickTime (including iPhoto) messes up the Makernote tag for certain photos (no workaround yet)
	124	+ Now reads exif information when the jpeg markers are out of order
	125	+ Gives raw data output for IPTC, COM and APP2 fields which are sometimes set by other applications
	126	+ Improvements to Nikon Makernote parsing
	127
	128	1.6 March 25th, 2007
	129
	130	+ Adopted into the Zenphoto gallery project, see http:// www.zenphoto.org
	131	+ Fixed a bug where strings had trailing null bytes.
	132	+ Formatted certain strings better.
	133	+ Added calculation of 35mm-equivalent focal length when possible.
	134	+ Cleaned up code for readability and efficiency.
	135
129	136	*/
130		//================================================================================================
131		//================================================================================================
132		//================================================================================================
133
134
135
136
137		//================================================================================================
	137
	138
	139
	140
	141
	142
138	143	//================================================================================================
139	144	// Converts from Intel to Motorola endien. Just reverses the bytes (assumes hex is passed in)
140	145	//================================================================================================
141		//================================================================================================
	146
142	147	function intel2Moto($intel) {
143		~~$len~~ = strlen($intel);
144		~~$moto=""~~;
145		~~for($i=0; $i<=$len; $i+=~~2) {
146		~~$moto.=substr($intel,$len-$i,~~2);
147		}
148		return $moto;
	148	$len = strlen($intel);
	149	$moto = '';
	150	for($i = 0; $i <= $len; $i += 2) {
	151	$moto .= substr($intel, $len-$i, 2);
	152	}
	153	return $moto;
149	154	}
150	155
151		//================================================================================================
	156
152	157	//================================================================================================
153	158	// Looks up the name of the tag
154	159	//================================================================================================
155		~~//================================================================================================~~
156	160	function lookup_tag($tag) {
157		switch($tag) {
158
159		//used by IFD0 "Camera Tags"
160		case "000b": $tag = "ACDComment";break; //text string up to 999 bytes long
161		case "00fe": $tag = "ImageType";break; //integer -2147483648 to 2147483647
162		case "0106": $tag = "PhotometricInterpret";break; //?? Please send sample image with this tag
163		case "010e": $tag = "ImageDescription";break; //text string up to 999 bytes long
164		case "010f": $tag = "Make";break; //text string up to 999 bytes long
165		case "0110": $tag = "Model";break; //text string up to 999 bytes long
166		case "0112": $tag = "Orientation";break; //integer values 1-9
167		case "0115": $tag = "SamplePerPixel";break; //integer 0-65535
168		case "011a": $tag = "xResolution";break; //positive rational number
169		case "011b": $tag = "yResolution";break; //positive rational number
170		case "011c": $tag = "PlanarConfig";break; //integer values 1-2
171		case "0128": $tag = "ResolutionUnit";break; //integer values 1-3
172		case "0131": $tag = "Software";break; //text string up to 999 bytes long
173		case "0132": $tag = "DateTime";break; //YYYY:MM:DD HH:MM:SS
174		case "013b": $tag = "Artist";break; //text string up to 999 bytes long
175		case "013c": $tag = "HostComputer";break; //text string
176		case "013e": $tag = "WhitePoint";break; //two positive rational numbers
177		case "013f": $tag = "PrimaryChromaticities";break; //six positive rational numbers
178		case "0211": $tag = "YCbCrCoefficients";break; //three positive rational numbers
179		case "0213": $tag = "YCbCrPositioning";break; //integer values 1-2
180		case "0214": $tag = "ReferenceBlackWhite";break; //six positive rational numbers
181		case "8298": $tag = "Copyright";break; //text string up to 999 bytes long
182		case "8649": $tag = "PhotoshopSettings";break; //??
183		case "8825": $tag = "GPSInfoOffset";break;
184		case "9286": $tag = "UserCommentOld";break; //??
185		case "8769": $tag = "ExifOffset";break; //positive integer
186
187		//used by Exif SubIFD "Image Tags"
188		case "829a": $tag = "ExposureTime";break; //seconds or fraction of seconds 1/x
189		case "829d": $tag = "FNumber";break; //positive rational number
190		case "8822": $tag = "ExposureProgram";break; //integer value 1-9
191		case "8824": $tag = "SpectralSensitivity";break; //??
192		case "8827": $tag = "ISOSpeedRatings";break; //integer 0-65535
193		case "9000": $tag = "ExifVersion";break; //??
194		case "9003": $tag = "DateTimeOriginal";break; //YYYY:MM:DD HH:MM:SS
195		case "9004": $tag = "DateTimedigitized";break; //YYYY:MM:DD HH:MM:SS
196		case "9101": $tag = "ComponentsConfiguration";break; //??
197		case "9102": $tag = "CompressedBitsPerPixel";break; //positive rational number
198		case "9201": $tag = "ShutterSpeedValue";break; //seconds or fraction of seconds 1/x
199		case "9202": $tag = "ApertureValue";break; //positive rational number
200		case "9203": $tag = "BrightnessValue";break; //positive rational number
201		case "9204": $tag = "ExposureBiasValue";break; //positive rational number (EV)
202		case "9205": $tag = "MaxApertureValue";break; //positive rational number
203		case "9206": $tag = "SubjectDistance";break; //positive rational number (meters)
204		case "9207": $tag = "MeteringMode";break; //integer 1-6 and 255
205		case "9208": $tag = "LightSource";break; //integer 1-255
206		case "9209": $tag = "Flash";break; //integer 1-255
207		case "920a": $tag = "FocalLength";break; //positive rational number (mm)
208		case "9213": $tag = "ImageHistory";break; //text string up to 999 bytes long
209		case "927c": $tag = "MakerNote";break; //a bunch of data
210		case "9286": $tag = "UserComment";break; //text string
211		case "9290": $tag = "SubsecTime";break; //text string up to 999 bytes long
212		case "9291": $tag = "SubsecTimeOriginal";break; //text string up to 999 bytes long
213		case "9292": $tag = "SubsecTimeDigitized";break; //text string up to 999 bytes long
214		case "a000": $tag = "FlashPixVersion";break; //??
215		case "a001": $tag = "ColorSpace";break; //values 1 or 65535
216		case "a002": $tag = "ExifImageWidth";break; //ingeter 1-65535
217		case "a003": $tag = "ExifImageHeight";break; //ingeter 1-65535
218		case "a004": $tag = "RelatedSoundFile";break; //text string 12 bytes long
219		case "a005": $tag = "ExifInteroperabilityOffset";break; //positive integer
220		case "a20c": $tag = "SpacialFreqResponse";break; //??
221		case "a20b": $tag = "FlashEnergy";break; //positive rational number
222		case "a20e": $tag = "FocalPlaneXResolution";break; //positive rational number
223		case "a20f": $tag = "FocalPlaneYResolution";break; //positive rational number
224		case "a210": $tag = "FocalPlaneResolutionUnit";break; //values 1-3
225		case "a214": $tag = "SubjectLocation";break; //two integers 0-65535
226		case "a215": $tag = "ExposureIndex";break; //positive rational number
227		case "a217": $tag = "SensingMethod";break; //values 1-8
228		case "a300": $tag = "FileSource";break; //integer
229		case "a301": $tag = "SceneType";break; //integer
230		case "a302": $tag = "CFAPattern";break; //undefined data type
231
232		case "a401": $tag = "CustomerRender";break; //values 0 or 1
233		case "a402": $tag = "ExposureMode";break; //values 0-2
234		case "a403": $tag = "WhiteBalance";break; //values 0 or 1
235		case "a404": $tag = "DigitalZoomRatio";break; //positive rational number
236		case "a406": $tag = "SceneCaptureMode";break; //values 0-3
237		case "a407": $tag = "GainControl";break; //values 0-4
238		case "a408": $tag = "Contrast";break; //values 0-2
239		case "a409": $tag = "Saturation";break; //values 0-2
240		case "a40a": $tag = "Sharpness";break; //values 0-2
241
242
243		//used by Interoperability IFD
244		case "0001": $tag = "InteroperabilityIndex";break; //text string 3 bytes long
245		case "0002": $tag = "InteroperabilityVersion";break; //datatype undefined
246		case "1000": $tag = "RelatedImageFileFormat";break; //text string up to 999 bytes long
247		case "1001": $tag = "RelatedImageWidth";break; //integer in range 0-65535
248		case "1002": $tag = "RelatedImageLength";break; //integer in range 0-65535
249
250		//used by IFD1 "Thumbnail"
251		case "0100": $tag = "ImageWidth";break; //integer in range 0-65535
252		case "0101": $tag = "ImageLength";break; //integer in range 0-65535
253		case "0102": $tag = "BitsPerSample";break; //integers in range 0-65535
254		case "0103": $tag = "Compression";break; //values 1 or 6
255		case "0106": $tag = "PhotometricInterpretation";break; //values 0-4
256		case "010e": $tag = "ThumbnailDescription";break; //text string up to 999 bytes long
257		case "010f": $tag = "ThumbnailMake";break; //text string up to 999 bytes long
258		case "0110": $tag = "ThumbnailModel";break; //text string up to 999 bytes long
259		case "0111": $tag = "StripOffsets";break; //??
260		case "0112": $tag = "ThumbnailOrientation";break; //integer 1-9
261		case "0115": $tag = "SamplesPerPixel";break; //??
262		case "0116": $tag = "RowsPerStrip";break; //??
263		case "0117": $tag = "StripByteCounts";break; //??
264		case "011a": $tag = "ThumbnailXResolution";break; //positive rational number
265		case "011b": $tag = "ThumbnailYResolution";break; //positive rational number
266		case "011c": $tag = "PlanarConfiguration";break; //values 1 or 2
267		case "0128": $tag = "ThumbnailResolutionUnit";break; //values 1-3
268		case "0201": $tag = "JpegIFOffset";break;
269		case "0202": $tag = "JpegIFByteCount";break;
270		case "0212": $tag = "YCbCrSubSampling";break;
271
272		//misc
273		case "00ff": $tag = "SubfileType";break;
274		case "012d": $tag = "TransferFunction";break;
275		case "013d": $tag = "Predictor";break;
276		case "0142": $tag = "TileWidth";break;
277		case "0143": $tag = "TileLength";break;
278		case "0144": $tag = "TileOffsets";break;
279		case "0145": $tag = "TileByteCounts";break;
280		case "014a": $tag = "SubIFDs";break;
281		case "015b": $tag = "JPEGTables";break;
282		case "828d": $tag = "CFARepeatPatternDim";break;
283		case "828e": $tag = "CFAPattern";break;
284		case "828f": $tag = "BatteryLevel";break;
285		case "83bb": $tag = "IPTC/NAA";break;
286		case "8773": $tag = "InterColorProfile";break;
287
288		case "8828": $tag = "OECF";break;
289		case "8829": $tag = "Interlace";break;
290		case "882a": $tag = "TimeZoneOffset";break;
291		case "882b": $tag = "SelfTimerMode";break;
292		case "920b": $tag = "FlashEnergy";break;
293		case "920c": $tag = "SpatialFrequencyResponse";break;
294		case "920d": $tag = "Noise";break;
295		case "9211": $tag = "ImageNumber";break;
296		case "9212": $tag = "SecurityClassification";break;
297		case "9214": $tag = "SubjectLocation";break;
298		case "9215": $tag = "ExposureIndex";break;
299		case "9216": $tag = "TIFF/EPStandardID";break;
300		case "a20b": $tag = "FlashEnergy";break;
301
302		default: $tag = "unknown:".$tag;break;
303		}
304		return $tag;
	161	switch($tag) {
	162	// used by IFD0 'Camera Tags'
	163	case '000b': $tag = 'ACDComment'; break; // text string up to 999 bytes long
	164	case '00fe': $tag = 'ImageType'; break; // integer -2147483648 to 2147483647
	165	case '0106': $tag = 'PhotometricInterpret'; break; // ?? Please send sample image with this tag
	166	case '010e': $tag = 'ImageDescription'; break; // text string up to 999 bytes long
	167	case '010f': $tag = 'Make'; break; // text string up to 999 bytes long
	168	case '0110': $tag = 'Model'; break; // text string up to 999 bytes long
	169	case '0112': $tag = 'Orientation'; break; // integer values 1-9
	170	case '0115': $tag = 'SamplePerPixel'; break; // integer 0-65535
	171	case '011a': $tag = 'xResolution'; break; // positive rational number
	172	case '011b': $tag = 'yResolution'; break; // positive rational number
	173	case '011c': $tag = 'PlanarConfig'; break; // integer values 1-2
	174	case '0128': $tag = 'ResolutionUnit'; break; // integer values 1-3
	175	case '0131': $tag = 'Software'; break; // text string up to 999 bytes long
	176	case '0132': $tag = 'DateTime'; break; // YYYY:MM:DD HH:MM:SS
	177	case '013b': $tag = 'Artist'; break; // text string up to 999 bytes long
	178	case '013c': $tag = 'HostComputer'; break; // text string
	179	case '013e': $tag = 'WhitePoint'; break; // two positive rational numbers
	180	case '013f': $tag = 'PrimaryChromaticities'; break; // six positive rational numbers
	181	case '0211': $tag = 'YCbCrCoefficients'; break; // three positive rational numbers
	182	case '0213': $tag = 'YCbCrPositioning'; break; // integer values 1-2
	183	case '0214': $tag = 'ReferenceBlackWhite'; break; // six positive rational numbers
	184	case '8298': $tag = 'Copyright'; break; // text string up to 999 bytes long
	185	case '8649': $tag = 'PhotoshopSettings'; break; // ??
	186	case '8825': $tag = 'GPSInfoOffset'; break;
	187	case '9286': $tag = 'UserCommentOld'; break; // ??
	188	case '8769': $tag = 'ExifOffset'; break; // positive integer
	189
	190	// used by Exif SubIFD 'Image Tags'
	191	case '829a': $tag = 'ExposureTime'; break; // seconds or fraction of seconds 1/x
	192	case '829d': $tag = 'FNumber'; break; // positive rational number
	193	case '8822': $tag = 'ExposureProgram'; break; // integer value 1-9
	194	case '8824': $tag = 'SpectralSensitivity'; break; // ??
	195	case '8827': $tag = 'ISOSpeedRatings'; break; // integer 0-65535
	196	case '9000': $tag = 'ExifVersion'; break; // ??
	197	case '9003': $tag = 'DateTimeOriginal'; break; // YYYY:MM:DD HH:MM:SS
	198	case '9004': $tag = 'DateTimedigitized'; break; // YYYY:MM:DD HH:MM:SS
	199	case '9101': $tag = 'ComponentsConfiguration'; break; // ??
	200	case '9102': $tag = 'CompressedBitsPerPixel'; break; // positive rational number
	201	case '9201': $tag = 'ShutterSpeedValue'; break; // seconds or fraction of seconds 1/x
	202	case '9202': $tag = 'ApertureValue'; break; // positive rational number
	203	case '9203': $tag = 'BrightnessValue'; break; // positive rational number
	204	case '9204': $tag = 'ExposureBiasValue'; break; // positive rational number (EV)
	205	case '9205': $tag = 'MaxApertureValue'; break; // positive rational number
	206	case '9206': $tag = 'SubjectDistance'; break; // positive rational number (meters)
	207	case '9207': $tag = 'MeteringMode'; break; // integer 1-6 and 255
	208	case '9208': $tag = 'LightSource'; break; // integer 1-255
	209	case '9209': $tag = 'Flash'; break; // integer 1-255
	210	case '920a': $tag = 'FocalLength'; break; // positive rational number (mm)
	211	case '9213': $tag = 'ImageHistory'; break; // text string up to 999 bytes long
	212	case '927c': $tag = 'MakerNote'; break; // a bunch of data
	213	case '9286': $tag = 'UserComment'; break; // text string
	214	case '9290': $tag = 'SubsecTime'; break; // text string up to 999 bytes long
	215	case '9291': $tag = 'SubsecTimeOriginal'; break; // text string up to 999 bytes long
	216	case '9292': $tag = 'SubsecTimeDigitized'; break; // text string up to 999 bytes long
	217	case 'a000': $tag = 'FlashPixVersion'; break; // ??
	218	case 'a001': $tag = 'ColorSpace'; break; // values 1 or 65535
	219	case 'a002': $tag = 'ExifImageWidth'; break; // ingeter 1-65535
	220	case 'a003': $tag = 'ExifImageHeight'; break; // ingeter 1-65535
	221	case 'a004': $tag = 'RelatedSoundFile'; break; // text string 12 bytes long
	222	case 'a005': $tag = 'ExifInteroperabilityOffset'; break; // positive integer
	223	case 'a20c': $tag = 'SpacialFreqResponse'; break; // ??
	224	case 'a20b': $tag = 'FlashEnergy'; break; // positive rational number
	225	case 'a20e': $tag = 'FocalPlaneXResolution'; break; // positive rational number
	226	case 'a20f': $tag = 'FocalPlaneYResolution'; break; // positive rational number
	227	case 'a210': $tag = 'FocalPlaneResolutionUnit'; break; // values 1-3
	228	case 'a214': $tag = 'SubjectLocation'; break; // two integers 0-65535
	229	case 'a215': $tag = 'ExposureIndex'; break; // positive rational number
	230	case 'a217': $tag = 'SensingMethod'; break; // values 1-8
	231	case 'a300': $tag = 'FileSource'; break; // integer
	232	case 'a301': $tag = 'SceneType'; break; // integer
	233	case 'a302': $tag = 'CFAPattern'; break; // undefined data type
	234	case 'a401': $tag = 'CustomerRender'; break; // values 0 or 1
	235	case 'a402': $tag = 'ExposureMode'; break; // values 0-2
	236	case 'a403': $tag = 'WhiteBalance'; break; // values 0 or 1