mediautil.image.jpeg
Class Exif

java.lang.Object
  mediautil.gen.BasicIo
      mediautil.image.jpeg.BasicJpegIo
          mediautil.image.jpeg.AbstractImageInfo<LLJTran>
              mediautil.image.jpeg.Exif

All Implemented Interfaces:

Serializable, MediaInfo

Direct Known Subclasses:

TiffExif

public class Exif
extends AbstractImageInfo<LLJTran>

This class represent the Exif header providing additional information about image. It is organized in a similiar IFD directory structure as specified by the Exif spec.

The below shows the most common usage of creating and changing an Exif Entry:

      // Use appropriate code to read an image into llj
      LLJTran llj = new LLJTran(..); llj.read(..);
      Exif exif = (Exif) llj.getImageInfo();

      // Create and entry for the EXIFIMAGEWIDTH tag
      // LONG is the appropriate Data Type for the EXIFIMAGEWIDTH tag
      Entry e = new Entry(LONG);
      e.setValue(0, new Integer(llj.getWidth()));
      exif.setTagValue(Exif.EXIFIMAGEWIDTH, 0, e, true);

      // Change the value of the DATETIME Entry 
      Entry entry = exif.getTagValue(Exif.DATETIME, true);
      if(entry != null)
          entry.setValue(0, "1998:08:18 11:15:00");

Also go through the below sources whose help was used to build this class:

• ISO/DIS 12234-2 Photography - Electronic still picture cameras - Removable Memory Part 2: Image data format - TIFF/EP (http://www.pima.net/it10a.htm)
• some enhancements were based on

See Also:

setTagValue(int,int,Entry,boolean), Entry.setValue(int,Object), Serialized Form

Field Summary

static int	APERTUREVALUE Identifies the APERTUREVALUE tag
static int	ARTIST Identifies the ARTIST tag
static int	ASCII Identifies the ASCII Data Type
static int	BATTERYLEVEL Identifies the BATTERYLEVEL tag
static int	BITSPERSAMPLE Identifies the BITSPERSAMPLE tag
static int	BRIGHTNESSVALUE Identifies the BRIGHTNESSVALUE tag
static int	BYTE Identifies the Byte Data Type
static int	CFAPATTERN Identifies the CFAPATTERN tag
static int	CFAREPEATPATTERNDIM Identifies the CFAREPEATPATTERNDIM tag
static int	COLORSPACE Identifies the COLORSPACE tag
static int	COMPONENTSCONFIGURATION Identifies the COMPONENTSCONFIGURATION tag
static int	COMPRESSEDBITSPERPIXEL Identifies the COMPRESSEDBITSPERPIXEL tag
static int	COMPRESSION Identifies the COMPRESSION tag
static int	CONTRAST Identifies the CONTRAST tag
static int	COPYRIGHT Identifies the COPYRIGHT tag
static int	CUSTOMRENDERED Identifies the CUSTOMRENDERED tag
static int	DATETIME Identifies the DATETIME tag
static int	DATETIMEDIGITIZED Identifies the DATETIMEDIGITIZED tag
static int	DATETIMEORIGINAL Identifies the DATETIMEORIGINAL tag
static int	DIGITALZOOMRATIO Identifies the DIGITALZOOMRATIO tag
static int	DOCUMENTNAME Identifies the DOCUMENTNAME tag
static byte[]	EXIF_MARK
static int	EXIFIMAGELENGTH Identifies the EXIFIMAGELENGTH tag
static int	EXIFIMAGEWIDTH Identifies the EXIFIMAGEWIDTH tag
static int	EXIFOFFSET Identifies the EXIFOFFSET tag
static int	EXIFVERSION Identifies the EXIFVERSION tag
static String[]	EXPOSURE_PROGRAMS
static int	EXPOSUREBIASVALUE Identifies the EXPOSUREBIASVALUE tag
static int	EXPOSUREINDEX Identifies the EXPOSUREINDEX tag
static int	EXPOSUREMODE Identifies the EXPOSUREMODE tag
static int	EXPOSUREPROGRAM Identifies the EXPOSUREPROGRAM tag
static int	EXPOSURETIME Identifies the EXPOSURETIME tag
static int	FILESOURCE Identifies the FILESOURCE tag
static int	FILLORDER Identifies the FILLORDER tag
static int	FLASH Identifies the FLASH tag
static int	FLASHENERGY Identifies the FLASHENERGY tag
static int	FLASHPIXVERSION Identifies the FLASHPIXVERSION tag
static int	FNUMBER Identifies the FNUMBER tag
static int	FOCALLENGTH Identifies the FOCALLENGTH tag
static int	FOCALLENGTHIN35MMFILM Identifies the FOCALLENGTHIN35MMFILM tag
static int	FOCALPLANERESOLUTIONUNIT Identifies the FOCALPLANERESOLUTIONUNIT tag
static int	FOCALPLANEXRESOLUTION Identifies the FOCALPLANEXRESOLUTION tag
static int	FOCALPLANEYRESOLUTION Identifies the FOCALPLANEYRESOLUTION tag
static String	FORMAT
static int	GAINCONTROL Identifies the GAINCONTROL tag
static int	GPSINFO Identifies the GPSINFO tag
static int	IMAGEDESCRIPTION Identifies the IMAGEDESCRIPTION tag
static int	IMAGELENGTH Identifies the IMAGELENGTH tag
static int	IMAGEWIDTH Identifies the IMAGEWIDTH tag
static int	INTERCOLORPROFILE Identifies the ERCOLORPROFILE tag
static int	INTEROPERABILITYOFFSET Identifies the EROPERABILITYOFFSET tag
static int	IPTC_NAA Identifies the IPTC_NAA tag
static int	ISOSPEEDRATINGS Identifies the ISOSPEEDRATINGS tag
static int	JPEGINTERCHANGEFORMAT Identifies the JPEGINTERCHANGEFORMAT tag
static int	JPEGINTERCHANGEFORMATLENGTH Identifies the JPEGINTERCHANGEFORMATLENGTH tag
static int	JPEGPROC Identifies the JPEGPROC tag
static int	JPEGTABLES Identifies the JPEGTABLES tag
static int	LIGHTSOURCE Identifies the LIGHTSOURCE tag
static int	LONG Identifies the LONG Data Type
static int	MAKE Identifies the MAKE tag
static int	MAKERNOTE Identifies the MAKERNOTE tag
static int	MAXAPERTUREVALUE Identifies the MAXAPERTUREVALUE tag
static String[]	METERING_MODES
static int	METERINGMODE Identifies the METERINGMODE tag
static int	MODEL Identifies the MODEL tag
static int	NEWSUBFILETYPE Identifies NEWSUBFILETYPE tag
static int	OECF Identifies the OECF tag
static int[]	opToCorrectOrientation A lookup array which can be used to get the LLJTran transformation operation required to correct the orientation for a given Exif Orientation Tag
static int	ORIENTATION Identifies the ORIENTATION tag
static int	ORIENTATION_BOTLEFT
static int	ORIENTATION_BOTRIGHT
static int	ORIENTATION_LEFTBOT
static int	ORIENTATION_LEFTTOP
static int	ORIENTATION_RIGHTBOT
static int	ORIENTATION_RIGHTTOP
static int	ORIENTATION_TOPLEFT
static int	ORIENTATION_TOPRIGHT
static int	PHOTOMETRICINTERPRETATION Identifies the PHOTOMETRICINTERPRETATION tag
static int	PLANARCONFIGURATION Identifies the PLANARCONFIGURATION tag
static int	PRIMARYCHROMATICITIES Identifies the PRIMARYCHROMATICITIES tag
static int	PRINTMODE Identifies the PRINTMODE tag
static int	RATIONAL Identifies the RATIONAL Data Type
static int	REFERENCEBLACKWHITE Identifies the REFERENCEBLACKWHITE tag
static int	RESOLUTIONUNIT Identifies the RESOLUTIONUNIT tag
static int	ROWSPERSTRIP Identifies the ROWSPERSTRIP tag
static int	SAMPLESPERPIXEL Identifies the SAMPLESPERPIXEL tag
static int	SATURATION Identifies the SATURATION tag
static int	SBYTE Identifies the Signed BYTE Data Type
static int	SCENECAPTURETYPE Identifies the SCENECAPTURETYPE tag
static int	SCENETYPE Identifies the SCENETYPE tag
static int	SENSINGMETHOD Identifies the SENSINGMETHOD tag
static int	SHARPNESS Identifies the SHARPNESS tag
static int	SHORT Identifies the SHORT Data Type
static int	SHUTTERSPEEDVALUE Identifies the SHUTTERSPEEDVALUE tag
static int	SLONG Identifies the Signed LONG Data Type
static int	SOFTWARE Identifies the SOFTWARE tag
static int	SPATIALFREQUENCYRESPONSE Identifies the SPATIALFREQUENCYRESPONSE tag
static int	SPECTRALSENSITIVITY Identifies the SPECTRALSENSITIVITY tag
static int	SRATIONAL Identifies the Signed RATIONAL Data Type
static int	SSHORT Identifies the Signed SHORT Data Type
static int	STRIPBYTECOUNTS Identifies the STRIPBYTECOUNTS tag
static int	STRIPOFFSETS Identifies the STRIPOFFSETS tag
static int	SUBIFDS Identifies the SUBIFDS tag
static int	SUBJECTDISTANCE Identifies the SUBJECTDISTANCE tag
static int	SUBJECTLOCATION Identifies the SUBJECTLOCATION tag
static int	SUBSECTIME Identifies the SUBSECTIME tag
static int	SUBSECTIMEDIGITIZED Identifies the SUBSECTIMEDIGITIZED tag
static int	SUBSECTIMEORIGINAL Identifies the SUBSECTIMEORIGINAL tag
static int	TRANSFERFUNCTION Identifies the TRANSFERFUNCTION tag
static int	TRANSFERRANGE Identifies the TRANSFERRANGE tag
static int[]	TYPELENGTH
static int	UNDEFINED Identifies the UNDEFINED Data Type
static int	USERCOMMENT Identifies the USERCOMMENT tag
static int	WHITEBALANCE Identifies the WHITEBALANCE tag
static int	WHITEPOINT Identifies the WHITEPOINT tag
static int	XRESOLUTION Identifies the XRESOLUTION tag
static int	YCBCRCOEFFICIENTS Identifies the YCBCRCOEFFICIENTS tag
static int	YCBCRPOSITIONING Identifies the YCBCRPOSITIONING tag
static int	YCBCRSUBSAMPLING Identifies the YCBCRSUBSAMPLING tag
static int	YRESOLUTION Identifies the YRESOLUTION tag

Fields inherited from class mediautil.image.jpeg.AbstractImageInfo

AV_TO_FSTOP, BMP_SIG, BMP24_HDR_SIZE, dateformat, DEFAULT_THUMB_SIZE, fnumberformat, NA, TV_TO_SEC

Fields inherited from class mediautil.image.jpeg.BasicJpegIo

M_DHP, M_DHT, M_DNL, M_DQT, M_DRI, M_EXP

Fields inherited from class mediautil.gen.BasicIo

FACTOR_ABVS

Fields inherited from interface mediautil.gen.MediaInfo

ALBUM, APERTURE, ARTISTWEBPAGE, AUDIOFILEWEBPAGE, AUDIOSOURCEWEBPAGE, BAND, BITRATE, BPM, CDIDENTIFIER, CLASS_AUDIO, CLASS_IMAGE, CLASS_VIDEO, COMMENTS, COMMERCIAL, COMMERCIALINFORMATION, COMPILATION, COMPOSER, CONDUCTOR, CONTENTGROUP, COPYRIGHTTEXT, COPYRIGHTWEBPAGE, DATE, DATETIMEORIGINALSTRING, EMPHASIS, ENCAPSULATEDOBJECT, ENCODEDBY, ENCRYPTIONMETHODREGISTRATION, EQUALISATION, ESS_CHARACHTER, ESS_MAKE, ESS_QUALITY, ESS_TIMESTAMP, EVENTTIMINGCODES, EXPOPROGRAM, FILEOWNER, FILESIZE, FILETYPE, GENRE, GROUPIDENTIFICATIONREGISTRATION, INITIALKEY, INTERNETRADIOSTATIONNAME, INTERNETRADIOSTATIONOWNER, INTERNETRADIOSTATIONWEBPAGE, ISRC, LANGUAGE, LASTMODIFIED, LASTPLAY, LAYER, LENGTH, LENGTHINTAG, LOOKUPTABLE, LYRICIST, MEDIA_ATTRIBUTES, MEDIATYPE, METERING, MODE, MPEGLEVEL, OFTRACKS, ORIGINAL, ORIGINALARTIST, ORIGINALFILENAME, ORIGINALLYRICIST, ORIGINALTITLE, ORIGINALYEAR, OWNERSHIP, PARTOFSET, PAYMENTWEBPAGE, PICTURE, PICTURE_ATTRIBUTES, PLAY_ATTRIBUTES, PLAYCOUNTER, PLAYLISTDELAY, POPULARIMETER, PRIVATE, PRIVATEDATA, PROTECTION, PUBLISHER, PUBLISHERSWEBPAGE, QUALITY, RATING, RECORDINGDATES, RELATIVEVOLUMENADJUSTMENT, REMIXER, RESOLUTIONX, RESOLUTIONY, REVERB, SAMPLERATE, SHUTTER, SUBTITLE, TERMSOFUSE, THUMBNAIL, TIME, TITLE, TRACK, UNIQUEFILEIDENTIFIER, USERDEFINEDTEXT, VBR, YEAR

Constructor Summary

Exif()
Basic constructor

Exif(InputStream is, byte[] data, int offset, String name, String comments, LLJTran format)
Loads the ImageInfo using information supplied.

Method Summary

String	getDataTimeOriginalString()
int	getExpoProgram()
String	getExpoProgramAsString()
float	getFNumber()
float	getFocalLength()
String	getFormat()
IFD[]	getIFDs() return IFDs
String	getMake()
static byte[]	getMarkerData()
int	getMetering()
String	getMeteringAsString()
String	getModel()
String	getOrientation()
String	getQuality()
String	getReport()
int	getResolutionX()
int	getResolutionY()
Rational	getShutter()
Entry	getTagValue(int tag, boolean main) Gets the Entry corresponding to an Exif tag.
Entry	getTagValue(Integer tag, int subTag, boolean main) Gets the Entry corresponding to an Exif tag.
String	getThumbnailExtension() Gets the extension of the Thumbnail Image format.
Icon	getThumbnailIcon(Dimension size)
int	getThumbnailLength() Method to get the length of the Thumnail.
int	getThumbnailOffset() Method to get the offset of the Thumbnail within the imageInfo data.
boolean	isFlash()
void	readInfo() Reads the imageInfo from the Input supplied in Constructor.
boolean	removeThumbnailTags() Removes the Thumbnail Tags in the imageInfo.
boolean	saveThumbnailImage(OutputStream os) saves thumbnail image to specified path
void	setResolutionX(int xRes) Sets Exif Image Width
void	setResolutionY(int yRes) Sets Exif Image Height
void	setTagValue(int tag, int subTag, Entry value, boolean main) Sets the Entry corresponding to an Exif tag.
void	setThumbnail(byte[] newThumbnailData, int startIndex, int len, String thumbnailExt, OutputStream newExifOp) Method to write the imageInfo with a new Thumbnail.
static int	transformOrientationTag(int tag, int op) Returns the new Orientation Tag after applying a transformation.
void	writeInfo(byte[] markerData, OutputStream out, int op, int options, boolean modifyImageInfo, int imageWidth, int imageHeight, String encoding) Writes modified or not Exif to out.

Methods inherited from class mediautil.image.jpeg.AbstractImageInfo

apertureToFnumber, getAdvancedImage, getAttribute, getBoolAttribute, getComments, getDateTimeOriginal, getDoubleAttribute, getFiveMajorAttributes, getFloatAttribute, getImageFile, getIntAttribute, getLongAttribute, getName, getThumbnailIcon, setAdvancedImage, setAttribute, setName, toString, writeInfo, writeInfo

Methods inherited from class mediautil.gen.BasicIo

asInt, asString, bn2s, bn2s, convertLength, in2s, isSignature, read, read, s2n, skip

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

FORMAT

public static final String FORMAT

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Constant Field Values

EXIF_MARK

public static final byte[] EXIF_MARK

NEWSUBFILETYPE

public static final int NEWSUBFILETYPE

Identifies NEWSUBFILETYPE tag

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Constant Field Values

IMAGEWIDTH

public static final int IMAGEWIDTH

Identifies the IMAGEWIDTH tag

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Constant Field Values

IMAGELENGTH

public static final int IMAGELENGTH

Identifies the IMAGELENGTH tag

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BITSPERSAMPLE

public static final int BITSPERSAMPLE

Identifies the BITSPERSAMPLE tag

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Constant Field Values

COMPRESSION

public static final int COMPRESSION

Identifies the COMPRESSION tag

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Constant Field Values

PHOTOMETRICINTERPRETATION

public static final int PHOTOMETRICINTERPRETATION

Identifies the PHOTOMETRICINTERPRETATION tag

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Constant Field Values

FILLORDER

public static final int FILLORDER

Identifies the FILLORDER tag

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Constant Field Values

DOCUMENTNAME

public static final int DOCUMENTNAME

Identifies the DOCUMENTNAME tag

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Constant Field Values

IMAGEDESCRIPTION

public static final int IMAGEDESCRIPTION

Identifies the IMAGEDESCRIPTION tag

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MAKE

public static final int MAKE

Identifies the MAKE tag

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MODEL

public static final int MODEL

Identifies the MODEL tag

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STRIPOFFSETS

public static final int STRIPOFFSETS

Identifies the STRIPOFFSETS tag

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ORIENTATION

public static final int ORIENTATION

Identifies the ORIENTATION tag

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SAMPLESPERPIXEL

public static final int SAMPLESPERPIXEL

Identifies the SAMPLESPERPIXEL tag

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ROWSPERSTRIP

public static final int ROWSPERSTRIP

Identifies the ROWSPERSTRIP tag

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STRIPBYTECOUNTS

public static final int STRIPBYTECOUNTS

Identifies the STRIPBYTECOUNTS tag

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XRESOLUTION

public static final int XRESOLUTION

Identifies the XRESOLUTION tag

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YRESOLUTION

public static final int YRESOLUTION

Identifies the YRESOLUTION tag

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PLANARCONFIGURATION

public static final int PLANARCONFIGURATION

Identifies the PLANARCONFIGURATION tag

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RESOLUTIONUNIT

public static final int RESOLUTIONUNIT

Identifies the RESOLUTIONUNIT tag

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TRANSFERFUNCTION

public static final int TRANSFERFUNCTION

Identifies the TRANSFERFUNCTION tag

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SOFTWARE

public static final int SOFTWARE

Identifies the SOFTWARE tag

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DATETIME

public static final int DATETIME

Identifies the DATETIME tag

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ARTIST

public static final int ARTIST

Identifies the ARTIST tag

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WHITEPOINT

public static final int WHITEPOINT

Identifies the WHITEPOINT tag

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PRIMARYCHROMATICITIES

public static final int PRIMARYCHROMATICITIES

Identifies the PRIMARYCHROMATICITIES tag

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SUBIFDS

public static final int SUBIFDS

Identifies the SUBIFDS tag

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JPEGTABLES

public static final int JPEGTABLES

Identifies the JPEGTABLES tag

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TRANSFERRANGE

public static final int TRANSFERRANGE

Identifies the TRANSFERRANGE tag

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JPEGPROC

public static final int JPEGPROC

Identifies the JPEGPROC tag

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JPEGINTERCHANGEFORMAT

public static final int JPEGINTERCHANGEFORMAT

Identifies the JPEGINTERCHANGEFORMAT tag

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JPEGINTERCHANGEFORMATLENGTH

public static final int JPEGINTERCHANGEFORMATLENGTH

Identifies the JPEGINTERCHANGEFORMATLENGTH tag

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YCBCRCOEFFICIENTS

public static final int YCBCRCOEFFICIENTS

Identifies the YCBCRCOEFFICIENTS tag

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YCBCRSUBSAMPLING

public static final int YCBCRSUBSAMPLING

Identifies the YCBCRSUBSAMPLING tag

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YCBCRPOSITIONING

public static final int YCBCRPOSITIONING

Identifies the YCBCRPOSITIONING tag

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REFERENCEBLACKWHITE

public static final int REFERENCEBLACKWHITE

Identifies the REFERENCEBLACKWHITE tag

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CFAREPEATPATTERNDIM

public static final int CFAREPEATPATTERNDIM

Identifies the CFAREPEATPATTERNDIM tag

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CFAPATTERN

public static final int CFAPATTERN

Identifies the CFAPATTERN tag

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BATTERYLEVEL

public static final int BATTERYLEVEL

Identifies the BATTERYLEVEL tag

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COPYRIGHT

public static final int COPYRIGHT

Identifies the COPYRIGHT tag

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EXPOSURETIME

public static final int EXPOSURETIME

Identifies the EXPOSURETIME tag

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FNUMBER

public static final int FNUMBER

Identifies the FNUMBER tag

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IPTC_NAA

public static final int IPTC_NAA

Identifies the IPTC_NAA tag

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EXIFOFFSET

public static final int EXIFOFFSET

Identifies the EXIFOFFSET tag

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INTERCOLORPROFILE

public static final int INTERCOLORPROFILE

Identifies the ERCOLORPROFILE tag

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EXPOSUREPROGRAM

public static final int EXPOSUREPROGRAM

Identifies the EXPOSUREPROGRAM tag

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SPECTRALSENSITIVITY

public static final int SPECTRALSENSITIVITY

Identifies the SPECTRALSENSITIVITY tag

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GPSINFO

public static final int GPSINFO

Identifies the GPSINFO tag

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ISOSPEEDRATINGS

public static final int ISOSPEEDRATINGS

Identifies the ISOSPEEDRATINGS tag

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OECF

public static final int OECF

Identifies the OECF tag

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EXIFVERSION

public static final int EXIFVERSION

Identifies the EXIFVERSION tag

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DATETIMEORIGINAL

public static final int DATETIMEORIGINAL

Identifies the DATETIMEORIGINAL tag

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DATETIMEDIGITIZED

public static final int DATETIMEDIGITIZED

Identifies the DATETIMEDIGITIZED tag

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COMPONENTSCONFIGURATION

public static final int COMPONENTSCONFIGURATION

Identifies the COMPONENTSCONFIGURATION tag

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COMPRESSEDBITSPERPIXEL

public static final int COMPRESSEDBITSPERPIXEL

Identifies the COMPRESSEDBITSPERPIXEL tag

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SHUTTERSPEEDVALUE

public static final int SHUTTERSPEEDVALUE

Identifies the SHUTTERSPEEDVALUE tag

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APERTUREVALUE

public static final int APERTUREVALUE

Identifies the APERTUREVALUE tag

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BRIGHTNESSVALUE

public static final int BRIGHTNESSVALUE

Identifies the BRIGHTNESSVALUE tag

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EXPOSUREBIASVALUE

public static final int EXPOSUREBIASVALUE

Identifies the EXPOSUREBIASVALUE tag

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MAXAPERTUREVALUE

public static final int MAXAPERTUREVALUE

Identifies the MAXAPERTUREVALUE tag

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SUBJECTDISTANCE

public static final int SUBJECTDISTANCE

Identifies the SUBJECTDISTANCE tag

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METERINGMODE

public static final int METERINGMODE

Identifies the METERINGMODE tag

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LIGHTSOURCE

public static final int LIGHTSOURCE

Identifies the LIGHTSOURCE tag

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FLASH

public static final int FLASH

Identifies the FLASH tag

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FOCALLENGTH

public static final int FOCALLENGTH

Identifies the FOCALLENGTH tag

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MAKERNOTE

public static final int MAKERNOTE

Identifies the MAKERNOTE tag

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USERCOMMENT

public static final int USERCOMMENT

Identifies the USERCOMMENT tag

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SUBSECTIME

public static final int SUBSECTIME

Identifies the SUBSECTIME tag

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SUBSECTIMEORIGINAL

public static final int SUBSECTIMEORIGINAL

Identifies the SUBSECTIMEORIGINAL tag

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SUBSECTIMEDIGITIZED

public static final int SUBSECTIMEDIGITIZED

Identifies the SUBSECTIMEDIGITIZED tag

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FLASHPIXVERSION

public static final int FLASHPIXVERSION

Identifies the FLASHPIXVERSION tag

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COLORSPACE

public static final int COLORSPACE

Identifies the COLORSPACE tag

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EXIFIMAGEWIDTH

public static final int EXIFIMAGEWIDTH

Identifies the EXIFIMAGEWIDTH tag

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EXIFIMAGELENGTH

public static final int EXIFIMAGELENGTH

Identifies the EXIFIMAGELENGTH tag

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INTEROPERABILITYOFFSET

public static final int INTEROPERABILITYOFFSET

Identifies the EROPERABILITYOFFSET tag

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FLASHENERGY

public static final int FLASHENERGY

Identifies the FLASHENERGY tag

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SPATIALFREQUENCYRESPONSE

public static final int SPATIALFREQUENCYRESPONSE

Identifies the SPATIALFREQUENCYRESPONSE tag

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FOCALPLANEXRESOLUTION

public static final int FOCALPLANEXRESOLUTION

Identifies the FOCALPLANEXRESOLUTION tag

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FOCALPLANEYRESOLUTION

public static final int FOCALPLANEYRESOLUTION

Identifies the FOCALPLANEYRESOLUTION tag

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Constant Field Values

FOCALPLANERESOLUTIONUNIT

public static final int FOCALPLANERESOLUTIONUNIT

Identifies the FOCALPLANERESOLUTIONUNIT tag

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SUBJECTLOCATION

public static final int SUBJECTLOCATION

Identifies the SUBJECTLOCATION tag

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EXPOSUREINDEX

public static final int EXPOSUREINDEX

Identifies the EXPOSUREINDEX tag

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SENSINGMETHOD

public static final int SENSINGMETHOD

Identifies the SENSINGMETHOD tag

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FILESOURCE

public static final int FILESOURCE

Identifies the FILESOURCE tag

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SCENETYPE

public static final int SCENETYPE

Identifies the SCENETYPE tag

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FOCALLENGTHIN35MMFILM

public static final int FOCALLENGTHIN35MMFILM

Identifies the FOCALLENGTHIN35MMFILM tag

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SHARPNESS

public static final int SHARPNESS

Identifies the SHARPNESS tag

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CUSTOMRENDERED

public static final int CUSTOMRENDERED

Identifies the CUSTOMRENDERED tag

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EXPOSUREMODE

public static final int EXPOSUREMODE

Identifies the EXPOSUREMODE tag

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WHITEBALANCE

public static final int WHITEBALANCE

Identifies the WHITEBALANCE tag

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Constant Field Values

DIGITALZOOMRATIO

public static final int DIGITALZOOMRATIO

Identifies the DIGITALZOOMRATIO tag

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Constant Field Values

SATURATION

public static final int SATURATION

Identifies the SATURATION tag

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Constant Field Values

SCENECAPTURETYPE

public static final int SCENECAPTURETYPE

Identifies the SCENECAPTURETYPE tag

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GAINCONTROL

public static final int GAINCONTROL

Identifies the GAINCONTROL tag

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CONTRAST

public static final int CONTRAST

Identifies the CONTRAST tag

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Constant Field Values

PRINTMODE

public static final int PRINTMODE

Identifies the PRINTMODE tag

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BYTE

public static final int BYTE

Identifies the Byte Data Type

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ASCII

public static final int ASCII

Identifies the ASCII Data Type

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SHORT

public static final int SHORT

Identifies the SHORT Data Type

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LONG

public static final int LONG

Identifies the LONG Data Type

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RATIONAL

public static final int RATIONAL

Identifies the RATIONAL Data Type

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SBYTE

public static final int SBYTE

Identifies the Signed BYTE Data Type

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UNDEFINED

public static final int UNDEFINED

Identifies the UNDEFINED Data Type

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SSHORT

public static final int SSHORT

Identifies the Signed SHORT Data Type

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SLONG

public static final int SLONG

Identifies the Signed LONG Data Type

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SRATIONAL

public static final int SRATIONAL

Identifies the Signed RATIONAL Data Type

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Constant Field Values

ORIENTATION_TOPLEFT

public static final int ORIENTATION_TOPLEFT

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Constant Field Values

ORIENTATION_TOPRIGHT

public static final int ORIENTATION_TOPRIGHT

See Also:

Constant Field Values

ORIENTATION_BOTRIGHT

public static final int ORIENTATION_BOTRIGHT

See Also:

Constant Field Values

ORIENTATION_BOTLEFT

public static final int ORIENTATION_BOTLEFT

See Also:

Constant Field Values

ORIENTATION_LEFTTOP

public static final int ORIENTATION_LEFTTOP

See Also:

Constant Field Values

ORIENTATION_RIGHTTOP

public static final int ORIENTATION_RIGHTTOP

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Constant Field Values

ORIENTATION_RIGHTBOT

public static final int ORIENTATION_RIGHTBOT

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Constant Field Values

ORIENTATION_LEFTBOT

public static final int ORIENTATION_LEFTBOT

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Constant Field Values

EXPOSURE_PROGRAMS

public static final String[] EXPOSURE_PROGRAMS

METERING_MODES

public static final String[] METERING_MODES

TYPELENGTH

public static final int[] TYPELENGTH

opToCorrectOrientation

public static final int[] opToCorrectOrientation

A lookup array which can be used to get the LLJTran transformation operation required to correct the orientation for a given Exif Orientation Tag

Constructor Detail

Exif

public Exif(InputStream is,
            byte[] data,
            int offset,
            String name,
            String comments,
            LLJTran format)
     throws FileFormatException

Loads the ImageInfo using information supplied. Uses the readInfo() method through AbstractImageInfo's constructor.

Parameters:

is - Image input. This is not used by Exif.

data - Image Header Information Marker Data excluding the 4 jpeg marker bytes

offset - Offset of marker within Image Input

name - Name of the Image File

comments - Image comments

format - Image Object of type LLJTran

Throws:

FileFormatException

Exif

public Exif()

Basic constructor

Method Detail

getFormat

public String getFormat()

Specified by:

getFormat in class AbstractImageInfo<LLJTran>

getMarkerData

public static byte[] getMarkerData()

getTagValue

public Entry getTagValue(int tag,
                         boolean main)

Gets the Entry corresponding to an Exif tag.

Parameters:

tag - Exif tag

main - true if it is in the main IFD, false if it is in the Sub IFD. Most of the commonly used Exif tags are in the main IFD. The Thumbnail related tags are in the Sub IFD.

Returns:

Entry corresponding to the tag

getTagValue

public Entry getTagValue(Integer tag,
                         int subTag,
                         boolean main)

Gets the Entry corresponding to an Exif tag.

Parameters:

tag - Exif tag

subTag - Sub Tag if any or pass -1

main - true if it is in the main IFD, false if it is in the Sub IFD. Most of the commonly used Exif tags are in the main IFD. The Thumbnail related tags are in the Sub IFD.

Returns:

Entry corresponding to the tag

setTagValue

public void setTagValue(int tag,
                        int subTag,
                        Entry value,
                        boolean main)

Sets the Entry corresponding to an Exif tag.

Parameters:

tag - Exif tag

subTag - Sub Tag if any or pass -1

value - Entry to set

main - true if it is in the main IFD, false if it is in the Sub IFD. Most of the commonly used Exif tags are in the main IFD. The Thumbnail related tags are in the Sub IFD.

getThumbnailLength

public int getThumbnailLength()

Method to get the length of the Thumnail.

Overrides:

getThumbnailLength in class AbstractImageInfo<LLJTran>

Returns:

Length of the Thumnail

getThumbnailOffset

public int getThumbnailOffset()

Method to get the offset of the Thumbnail within the imageInfo data.

Overrides:

getThumbnailOffset in class AbstractImageInfo<LLJTran>

Returns:

Offset of the Thumnail within the Appx marker data

saveThumbnailImage

public boolean saveThumbnailImage(OutputStream os)
                           throws IOException

saves thumbnail image to specified path

Overrides:

saveThumbnailImage in class AbstractImageInfo<LLJTran>

Throws:

IOException

getThumbnailExtension

public String getThumbnailExtension()

Gets the extension of the Thumbnail Image format. Returns null if the image has no Thumbnail.

Overrides:

getThumbnailExtension in class AbstractImageInfo<LLJTran>

Returns:

Thumbnail Extension as defined in ImageResources

See Also:

ImageResources

getThumbnailIcon

public Icon getThumbnailIcon(Dimension size)

Specified by:

getThumbnailIcon in class AbstractImageInfo<LLJTran>

getResolutionX

public int getResolutionX()

Specified by:

getResolutionX in class AbstractImageInfo<LLJTran>

Returns:

Exif Image Width

setResolutionX

public void setResolutionX(int xRes)

Sets Exif Image Width

Parameters:

xRes - x Resolution

getResolutionY

public int getResolutionY()

Specified by:

getResolutionY in class AbstractImageInfo<LLJTran>

Returns:

Exif Image Height

setResolutionY

public void setResolutionY(int yRes)

Sets Exif Image Height

Parameters:

yRes - y Resolution

getMetering

public int getMetering()

Specified by:

getMetering in class AbstractImageInfo<LLJTran>

getMeteringAsString

public String getMeteringAsString()

getExpoProgram

public int getExpoProgram()

Specified by:

getExpoProgram in class AbstractImageInfo<LLJTran>

getExpoProgramAsString

public String getExpoProgramAsString()

getMake

public String getMake()

Specified by:

getMake in class AbstractImageInfo<LLJTran>

getModel

public String getModel()

Specified by:

getModel in class AbstractImageInfo<LLJTran>

getDataTimeOriginalString

public String getDataTimeOriginalString()

Specified by:

getDataTimeOriginalString in class AbstractImageInfo<LLJTran>

getFNumber

public float getFNumber()

Specified by:

getFNumber in class AbstractImageInfo<LLJTran>

getShutter

public Rational getShutter()

Specified by:

getShutter in class AbstractImageInfo<LLJTran>

isFlash

public boolean isFlash()

Specified by:

isFlash in class AbstractImageInfo<LLJTran>

getFocalLength

public float getFocalLength()

Specified by:

getFocalLength in class AbstractImageInfo<LLJTran>

getQuality

public String getQuality()

Specified by:

getQuality in class AbstractImageInfo<LLJTran>

getOrientation

public String getOrientation()

getReport

public String getReport()

Specified by:

getReport in class AbstractImageInfo<LLJTran>

readInfo

public void readInfo()

Reads the imageInfo from the Input supplied in Constructor.

Specified by:

readInfo in class AbstractImageInfo<LLJTran>

transformOrientationTag

public static int transformOrientationTag(int tag,
                                          int op)

Returns the new Orientation Tag after applying a transformation.

Parameters:

tag - Current Orientation tag

op - Transformation as defined in LLJTran

Returns:

New Orientation tag that should be set after Transforming the image

writeInfo

public void writeInfo(byte[] markerData,
                      OutputStream out,
                      int op,
                      int options,
                      boolean modifyImageInfo,
                      int imageWidth,
                      int imageHeight,
                      String encoding)
               throws IOException

Writes modified or not Exif to out. APP header and its length are not included so any wrapper should do that calculation.

This method is mainly for use by LLJTran to regenerate the Appx marker Data for the imageInfo.

Overrides:

writeInfo in class AbstractImageInfo<LLJTran>

Parameters:

markerData - The existing markerData. This is used by Exif to read the existing Thumbnail.

out - Output Stream to write out the new markerData

op - The transformation option. This is used to switch the width and height in imageInfo if op is a ROT_90 like transform and transform the orientation tag and Thumbnail if opted for.

options - OPT_XFORM_.. options of LLJTran. LLJTran passes its options directly to this method. This uses the imageInfo related flags LLJTran.OPT_XFORM_THUMBNAIL and LLJTran.OPT_XFORM_ORIENTATION and makes the necessary changes to imageInfo depending on the transform specified by op before writing.

modifyImageInfo - If true the changes made to imageInfo are retained, otherwise the state is restored at the end of the call.

imageWidth - Actual Image Width. If this and imageHeight are positive then they are used for the width and height in imageInfo and no switching of width and height is done for ROT_90 like transforms.

imageHeight - Actaul Image Height

encoding - Encoding to be used when for writing out Character information like comments.

Throws:

IOException

setThumbnail

public void setThumbnail(byte[] newThumbnailData,
                         int startIndex,
                         int len,
                         String thumbnailExt,
                         OutputStream newExifOp)
                  throws IOException

Method to write the imageInfo with a new Thumbnail. This method changes the imageInfo for the new Thumbnail and writes out the corresponding Appx header data (without jpeg markers) with the new new Thumbnail.

Overrides:

setThumbnail in class AbstractImageInfo<LLJTran>

Parameters:

newThumbnailData - New Thumbnail image data

startIndex - Offset within newThumbnailData where the image starts

len - Length of Thumbnail Image

thumbnailExt - Extension of the Thumbnail Image from ImageResources which identifies the format of the Thumbnail image. Exif supports only JPEG and BMP formats for Thumbnail.

newExifOp - Output to write out the new Appx data

Throws:

IOException

removeThumbnailTags

public boolean removeThumbnailTags()

Removes the Thumbnail Tags in the imageInfo. Thus the next time the Appx is written using writeInfo(..) it will be without a Thumbnail

Overrides:

removeThumbnailTags in class AbstractImageInfo<LLJTran>

Returns:

True if the Sub IFD containing Thumbnail is present

getIFDs

public IFD[] getIFDs()

return IFDs