IM cannot reat Exif data from RAW files
Posted: 2008-02-26T07:51:33-07:00
If convert raw file from f.ex. a canon eos 350D(CR2-file) to a jpg
file by using Camera raw from Adobe Photoshop and then use the command:
identify -verbose _mg_3100.jpg
I get this result all these exif data:
Exif:ApertureValue: 6643856/1000000
Exif:Artist: unknown
Exif:CustomRendered: 0
Exif:DateTime: 2008:02:26 15:05:09
Exif:DateTimeDigitized: 2007-06-02T02:00:18+02:00
Exif:DateTimeOriginal: 2007-06-02T02:00:18+02:00
Exif:ExifOffset: 196
Exif:ExifVersion: 0221
Exif:ExposureBiasValue: -4/3
Exif:ExposureMode: 0
Exif:ExposureProgram: 2
Exif:ExposureTime: 1/200
Exif:Flash: 16
Exif:FNumber: 10/1
Exif:FocalLength: 28/1
Exif:FocalPlaneResolutionUnit: 2
Exif:FocalPlaneXResolution: 3456000/874
Exif:FocalPlaneYResolution: 2304000/582
Exif:ISOSpeedRatings: 400
Exif:Make: Canon
Exif:MeteringMode: 5
Exif:Model: Canon EOS 350D DIGITAL
Exif:ResolutionUnit: 2
Exif:SceneCaptureType: 0
Exif:ShutterSpeedValue: 7643856/1000000
Exif:TimeZoneOffset: 2
Exif:WhiteBalance: 0
Exif:XResolution: 240/1
Exif:YResolution: 240/1
If I do this command on the original cr2-file: identify -verbose _mg_3100.CR2,
then I get this result, which contains no exif-data:
E:\User\caramba\CIS2koersel\temp>identify -verbose _mg_3000.cr2
Image: C:/DOKUME~1/Customer/LOKALE~1/Temp/magick-jh3AkXSU.pnm
Base filename: _mg_3000.cr2
Format: CR2 (Canon Digital Camera Raw Image Format)
Class: DirectClass
Geometry: 3474x2314+0+0
Type: Bilevel
Endianess: Undefined
Colorspace: Gray
Depth: 1-bit
Channel depth:
Gray: 1-bit
Channel statistics:
Gray:
Min: 0 (0)
Max: 0 (0)
Mean: 0 (0)
Standard deviation: 0 (0)
Histogram:
8038836: ( 0, 0, 0) #000000000000 black
Rendering intent: Undefined
Resolution: 72x72
Units: Undefined
Filesize: 45.9986mb
Interlace: None
Background color: white
Border color: rgb(223,223,223)
Matte color: grey74
Transparent color: black
Page geometry: 3474x2314+0+0
Dispose: Undefined
Iterations: 0
Compression: Undefined
Orientation: Undefined
Properties:
Signature: 137da1286162edd801d2d2d1484d5c29c50c35947df5753f04e8a3b636c62976
Artifacts:
Verbose: true
Tainted: False
User time: 1.382u
Elapsed time: 0:02
Pixels per second: 5.31283mb
Version: ImageMagick 6.3.8 01/25/08 Q8 http://www.imagemagick.org
Why can't ImageMagick 6.3.8 read the exif data from a CR2-file?
What might be the time horizon for IM to be able to read exif data from RAW images?
(If I try to convert a CR2 to DNG file it is still imposible to the exif data.)
file by using Camera raw from Adobe Photoshop and then use the command:
identify -verbose _mg_3100.jpg
I get this result all these exif data:
Exif:ApertureValue: 6643856/1000000
Exif:Artist: unknown
Exif:CustomRendered: 0
Exif:DateTime: 2008:02:26 15:05:09
Exif:DateTimeDigitized: 2007-06-02T02:00:18+02:00
Exif:DateTimeOriginal: 2007-06-02T02:00:18+02:00
Exif:ExifOffset: 196
Exif:ExifVersion: 0221
Exif:ExposureBiasValue: -4/3
Exif:ExposureMode: 0
Exif:ExposureProgram: 2
Exif:ExposureTime: 1/200
Exif:Flash: 16
Exif:FNumber: 10/1
Exif:FocalLength: 28/1
Exif:FocalPlaneResolutionUnit: 2
Exif:FocalPlaneXResolution: 3456000/874
Exif:FocalPlaneYResolution: 2304000/582
Exif:ISOSpeedRatings: 400
Exif:Make: Canon
Exif:MeteringMode: 5
Exif:Model: Canon EOS 350D DIGITAL
Exif:ResolutionUnit: 2
Exif:SceneCaptureType: 0
Exif:ShutterSpeedValue: 7643856/1000000
Exif:TimeZoneOffset: 2
Exif:WhiteBalance: 0
Exif:XResolution: 240/1
Exif:YResolution: 240/1
If I do this command on the original cr2-file: identify -verbose _mg_3100.CR2,
then I get this result, which contains no exif-data:
E:\User\caramba\CIS2koersel\temp>identify -verbose _mg_3000.cr2
Image: C:/DOKUME~1/Customer/LOKALE~1/Temp/magick-jh3AkXSU.pnm
Base filename: _mg_3000.cr2
Format: CR2 (Canon Digital Camera Raw Image Format)
Class: DirectClass
Geometry: 3474x2314+0+0
Type: Bilevel
Endianess: Undefined
Colorspace: Gray
Depth: 1-bit
Channel depth:
Gray: 1-bit
Channel statistics:
Gray:
Min: 0 (0)
Max: 0 (0)
Mean: 0 (0)
Standard deviation: 0 (0)
Histogram:
8038836: ( 0, 0, 0) #000000000000 black
Rendering intent: Undefined
Resolution: 72x72
Units: Undefined
Filesize: 45.9986mb
Interlace: None
Background color: white
Border color: rgb(223,223,223)
Matte color: grey74
Transparent color: black
Page geometry: 3474x2314+0+0
Dispose: Undefined
Iterations: 0
Compression: Undefined
Orientation: Undefined
Properties:
Signature: 137da1286162edd801d2d2d1484d5c29c50c35947df5753f04e8a3b636c62976
Artifacts:
Verbose: true
Tainted: False
User time: 1.382u
Elapsed time: 0:02
Pixels per second: 5.31283mb
Version: ImageMagick 6.3.8 01/25/08 Q8 http://www.imagemagick.org
Why can't ImageMagick 6.3.8 read the exif data from a CR2-file?
What might be the time horizon for IM to be able to read exif data from RAW images?
(If I try to convert a CR2 to DNG file it is still imposible to the exif data.)