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Title: Problem with Copying Metadata From One GeoTIFF file to Another
Post by: mk on October 08, 2019, 11:40:37 AM

Hi everyone.

The version of ExifTool I am using is 11.69. I have been trying to copy metadata from one GeoTIFF file to another. Most of the information I need copied is fine, but I have run into some issues when dealing with the tags GeoKeyDirectoryTag and GeoDoubleParamsTag. The original GeoTIFF works fine in QGIS. When I open the new GeoTIFF with the copied metadata I receive a warning of

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Warning 1: TIFFFetchNormalTag:Incompatible type for "GeoKeyDirectory"; tag ignored
Warning 1: TIFFFetchNormalTag:Incompatible type for "GeoDoubleParams"; tag ignored

When I look at the tags I see

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GeoKeyDirectoryTag (b'\x01\x00\x01\x00\x00\x00\x08\x00\x00\x04\x00\x00\x01\x00\x01\x00\x01\x04\x00\x00\x01\x00\x01\x00\x02\x04\xb1\x87"\x00\x00\x00\x01\x08\xb1\x87\x0c\x00"\x00\x06\x08\x00\x00\x01\x00\x8e#\x0e\x08\xb0\x87\x03\x00\x00\x00\x00\x0c\x00\x00\x01\x00\x97\x0b\x04\x0c\x00\x00\x01\x00+#',)
GeoDoubleParamsTag (b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00',)

Where the original GeoTIFF has

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GeoKeyDirectoryTag (1, 1, 0, 8, 1024, 0, 1, 1, 1025, 0, 1, 1, 1026, 34737, 34, 0, 2049, 34737, 12, 34, 2054, 0, 1, 9102, 2062, 34736, 3, 0, 3072, 0, 1, 2967, 3076, 0, 1, 9003)
GeoDoubleParamsTag (0.0, 0.0, 0.0)

The command I used was

exiftool -TagsFromFile '/file/path/to/original' -exif:all '/file/path/to/new'

Is there a way for me to copy the metadata like it is with the original GeoTIFF? I am new with ExifTool and dealing with metadata so I would not doubt that I missed something important.

Thanks

Title: Re: Problem with Copying Metadata From One GeoTIFF file to Another
Post by: Phil Harvey on October 08, 2019, 11:53:26 AM

What is the byte order of these files?:

exiftool -exifbyteorder FILE

- Phil

Title: Re: Problem with Copying Metadata From One GeoTIFF file to Another
Post by: mk on October 08, 2019, 12:03:19 PM

Hi Phil,

The original GeoTIFF has

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Exif Byte Order                 : Little-endian (Intel, II)

And the GeoTIFF with copied metadata has

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Exif Byte Order                 : Little-endian (Intel, II)

Title: Re: Problem with Copying Metadata From One GeoTIFF file to Another
Post by: Phil Harvey on October 08, 2019, 12:04:14 PM

OK, thanks. So it isn't a byte order problem.

Yes. ExifTool does write these tags with an incorrect format type. I'll look into this.

Thanks for this report.

- Phil

Edit: I can see this with the new -validate feature:

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> exiftool a.tif -validate -warning -a
Validate                        : 2 Warnings
Warning                         : Non-standard format (undef) for IFD0 0x87af GeoTiffDirectory
Warning                         : Non-standard format (undef) for IFD0 0x87b0 GeoTiffDoubleParams

This will be fixed in ExifTool 11.70

Title: Re: Problem with Copying Metadata From One GeoTIFF file to Another
Post by: mk on October 08, 2019, 12:10:33 PM

Your welcome, I hoped it was a problem with what I did.

Thank you for the quick replies.

Title: Re: Problem with Copying Metadata From One GeoTIFF file to Another
Post by: Phil Harvey on October 10, 2019, 12:54:12 PM

ExifTool 11.70 is now available, and should solve this problem.

- Phil

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ExifTool => Newbies => Topic started by: mk on October 08, 2019, 11:40:37 AM