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Author Topic: Image tagging: EXIF/IPTC/other ?  (Read 2968 times)

Ce.D

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Image tagging: EXIF/IPTC/other ?
« on: November 08, 2003, 12:55:02 am »

Hi guys !

Wondering if I can use/recommend MC as an image tags management software.

Could any of you in the development team tell me which method you use to save tags in images (particularly JPEG and TIFF) ?

Do you use APP1 (EXIF) container and/or APP13 (IPTC) or some other tagging method ?

If you use EXIF and/or IPTC, which fields do you support ?

Thank you very much for the information.
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Great piece of soft, guys!

sraymond

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Re:Image tagging: EXIF/IPTC/other ?
« Reply #1 on: November 10, 2003, 09:38:03 am »

Short Answer:  EXIF, for example:

2160 x 1440 - 1.4 MB
EASTMAN KODAK COMPANY KODAK DX4330 DIGITAL CAMERA - 6/3/2003 3:50 PM
 - F/4.8 - 1/500 sec.
Focal Length: 8 mm
Metering: ?
White Balance: ?
Flash: No
JPEG Quality:
Orientation: Normal
Exposure Program:
Exposure Bias: 0
Comments:

were all read automatically.

Scott-
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Matt

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Re:Image tagging: EXIF/IPTC/other ?
« Reply #2 on: November 10, 2003, 09:45:29 am »

MC reads EXIF.

MC tags JPEG's using an XML APPID block.  The tags are fast, lightweight, unintrusive, and easily added / removed.

Searching the forums will probably yield more discussion of MC's JPEG tagging.
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Matt Ashland, JRiver Media Center

Ce.D

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Re:Image tagging: EXIF/IPTC/other ?
« Reply #3 on: November 10, 2003, 04:00:05 pm »

Thank you Matt for your precise answer :)

It's a pity MC doesn't support IPTC tagging.

While EXIF tags are usually considered "read-only" (containing the "original" facts of a picture) - even if some do have a "write" purpose - IPTC tags are on the other hand used by professional photographers to tag their images with their "additional" information and somehow remain "industry"-compliant (especially with agencys' databases).

Since most the softwares that come with digital cameras are real crap (even those coming along with several thousands dollars "high-end" pros' cameras), MC could come as a genuine replacement for those... but EXIF/IPTC tags (re-)writing is a requirement.

Maybe something "to keep behind the ear" ;)

BTW, have you ever thought of allowing users to make mixed "audio/photo" programmable playlist (something like: at time "t1", play "track" from time "start"; at time "t2", display "image" using blending "effect"; at time "t3"...) ? You have everything you need in MC (out of the "timed" playlist) to make of it the best musicalized/commented slide-shower I'd ever seen (including configurable IR remote control, sound DSP-ing, etc...).

 ;D
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Great piece of soft, guys!

Matt

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Re:Image tagging: EXIF/IPTC/other ?
« Reply #4 on: November 10, 2003, 04:18:25 pm »

IPTC is too limited to hold everything. (unless you make a crazy unreadable "Comment" string to hold extra data or something)

So to support the flexible database engine of MC we needed to create a more flexible JPEG tagging system.

We'll support other flexible standards when / if they emerge.

Quote
BTW, have you ever thought of allowing users to make mixed "audio/photo" programmable playlist

You can make the mixed playlist now.  Making it programmable may well happen in the next version.

Thanks.
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Matt Ashland, JRiver Media Center

Ce.D

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Re:Image tagging: EXIF/IPTC/other ?
« Reply #5 on: November 10, 2003, 04:26:20 pm »

IPTC is too limited to hold everything. (unless you make a crazy unreadable "Comment" string to hold extra data or something)

Yep. Have to agree to that... though our "engineering" point-of-view sometime's not enough to convince users and/or (especially) salesmen  ;D ;D ;D

You can make the mixed playlist now.  Making it programmable may well happen in the next version.

This is great news ! ;D ;D ;D

Thanx again for your answering.
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Great piece of soft, guys!
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