edit xmp metadata: developers needed

[Ian Wood]

P.S. A good place to start investigating XMP is probably <http:// 
www.iptc.org/IPTC4XMP/>.

Ian

On 27 Sep 2006, at 10:22, Ian Wood wrote:

> I'm primarily a photographer, so know *a bit* about XMP, although  
> not enough to do the actual work...
>
> One thing that would be MUCH easier would be to use XMP sidecar  
> files - instead of embedding the data in the actual image file, you  
> have a bog-standard XML file sitting next to it in the folder, with  
> an identical name but the extension '.xmp'. This would solve all  
> your binary data problems in a stroke, and also solves potential  
> image corruption issues when writing data back into the image file.
>
> Ian
>
> On 27 Sep 2006, at 10:14, Henk van der Velden wrote:
>
>> Good day all,
>>
>> Can anyone help me with editing XMP metadata in image files (JPEG)?
>>
>> I've searched the archives and I've found some messages about EXIF  
>> data and IPTC metadata. But it looks like no one has done XMP  
>> reading / editing yet. It wouldn't perhaps be too difficult, since  
>> XMP data is 'just' an XML tree put somewhere into the JPEG binary  
>> data. But I have no knowledge of binary data, so I can't figure  
>> out how to add these metadata to a (JPEG) file.
>>
>> Another option might be Image Magick. If an external could be  
>> built around the Image Magick libraries, that would provide  
>> another way to read and edit XMP data.
>>
>> I need this facility for a new application we are going to build  
>> for a couple of local cultural institutions. We need to describe  
>> lots of historical photographs, and it looks like the best way to  
>> store these descriptions is as metadata inside the files. These  
>> images are also to be used in educational applications, where  
>> children can read - and eventually edit - the metadata.
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