Missing EXIF properties

[rmagick]

An RMagick user reports that some of the EXIF properties in his image are not listed. Using 6.4.0. I see that identify -verbose lists most, but not all, of the EXIF properties in the image:



When I list the EXIF data using Photoshop I see additional GPS properties, including GPSVersionID, GPSLatitude, GPSLongitude, GPSAltitude, and GPSMapDatum.

I suppose these are from a later version of the EXIF standard than identify currently supports?

Here's the output from identify. Please let me know if you need any more information. Thanks!

Code: Select all

tim@linux:~$ identify -verbose gps_data_example.jpg | more
Image: gps_data_example.jpg
  Format: JPEG (Joint Photographic Experts Group JFIF format)
  Class: DirectClass
  Geometry: 512x384+0+0
  Resolution: 72x72
  Print size: 7.11111x5.33333
  Units: PixelsPerInch
  Type: TrueColor
  Endianess: Undefined
  Colorspace: RGB
  Depth: 8-bit
  Channel depth:
    red: 8-bit
    green: 8-bit
    blue: 8-bit
  Channel statistics:
    red:
      min: 0 (0)
      max: 255 (1)
      mean: 109.21 (0.428276)
      standard deviation: 56.3952 (0.221158)
    green:
      min: 1 (0.00392157)
      max: 255 (1)
      mean: 106.149 (0.41627)
      standard deviation: 56.3512 (0.220985)
    blue:
      min: 0 (0)
      max: 255 (1)
      mean: 103.004 (0.403937)
      standard deviation: 57.3334 (0.224837)
  Rendering intent: Undefined
  Interlace: None
  Background color: white
  Border color: rgb(223,223,223)
  Matte color: grey74
  Transparent color: black
  Page geometry: 512x384+0+0
  Dispose: Undefined
  Iterations: 0
  Compression: JPEG
  Quality: 88
  Orientation: TopLeft
  Properties:
    create-date: 2008-03-26T18:14:38-04:00
    exif:ColorSpace: 1
    exif:ComponentsConfiguration: ...
    exif:Compression: 6
    exif:CustomRendered: 0
    exif:DateTime: 2008:03:15 12:31:31
    exif:DateTimeDigitized: 2008:03:15 12:31:31
    exif:DateTimeOriginal: 2008:03:15 12:31:30
    exif:DigitalZoomRatio: 1/1
    exif:ExifImageLength: 1536
    exif:ExifImageWidth: 2048
    exif:ExifOffset: 244
    exif:ExifVersion: 0220
    exif:ExposureBiasValue: 0/1
    exif:ExposureMode: 0
    exif:ExposureTime: 1/200
    exif:Flash: 24
    exif:FlashPixVersion: 0100
    exif:FNumber: 14/5
    exif:FocalLength: 26/5
    exif:GPSInfo: 718
    exif:InteroperabilityIndex: R98
    exif:InteroperabilityOffset: 688
    exif:InteroperabilityVersion: 0100
    exif:ISOSpeedRatings: 64
    exif:JPEGInterchangeFormat: 978
    exif:JPEGInterchangeFormatLength: 5773
    exif:LightSource: 0
    exif:Make: Sony Ericsson
    exif:MakerNote: SEMC MS
    exif:MeteringMode: 2
    exif:Model: K850i
    exif:Orientation: 1
    exif:ResolutionUnit: 2
    exif:SceneCaptureType: 0
    exif:ShutterSpeedValue: 7/1
    exif:Software: R1CA029     prg12004400_GENERIC_SO 02.09
    exif:WhiteBalance: 0
    exif:XResolution: 72/1
    exif:YCbCrPositioning: 2
    exif:YResolution: 72/1
    jpeg:colorspace: 2
    jpeg:sampling-factor: 2x1,1x1,1x1
    modify-date: 2008-03-26T18:13:43-04:00
    rdf:about:
    signature: d266b35044455a0b160e818b96e828734e517eda488287ae1e501ed7ac02dac6
    xmlns:tiff: http://ns.adobe.com/tiff/1.0/
  Profiles:
    Profile-exif: 6758 bytes
    Profile-xmp: 3057 bytes
  Artifacts:
    verbose: true
  Tainted: False
  Filesize: 71.9277kb
  Number pixels: 192kb
  Version: ImageMagick 6.4.0 03/24/08 Q16 http://www.imagemagick.org

[magick]

Can you track down the missing (presumably newer) EXIF tags and their associated hex tag number? If so we'll get them into the next point release of ImageMagick.