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How to extract metadata from an image?
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Topic: How to extract metadata from an image? (Read 2242 times)
cpalx
Hero Member
Posts: 753
How to extract metadata from an image?
«
on:
February 20, 2021, 09:36:47 pm »
I have Lazarus 2.0.10, FPC 3.2
i would like to know, how to extract metadata from an image file
size
resolution
Color Space
Presicion
Comments
and if have geoinformation, too.
Please help.
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GAN
Sr. Member
Posts: 370
Re: How to extract metadata from an image?
«
Reply #1 on:
February 20, 2021, 09:43:18 pm »
You can try dExif
https://github.com/cutec-chris/dexif/blob/master/ProgrammerGuide.Txt
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Lazarus 2.0.8 FPC 3.0.4 Linux Mint Mate 19.3
Zeos 7̶.̶2̶.̶6̶ 7.1.3a-stable - Sqlite 3.32.3 - LazReport
speter
Sr. Member
Posts: 349
Re: How to extract metadata from an image?
«
Reply #2 on:
February 20, 2021, 11:56:07 pm »
You could maybe use the EXIF library, see the thread below
https://forum.lazarus.freepascal.org/index.php/topic,49648.msg360764.html#msg360764
cheers
S.
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I climbed mighty mountains, and saw that they were actually tiny foothills.
lucamar
Hero Member
Posts: 4219
Re: How to extract metadata from an image?
«
Reply #3 on:
February 21, 2021, 12:12:11 am »
Quote from: speter on February 20, 2021, 11:56:07 pm
You could maybe use the EXIF library,
I was going to suggest the same:
fpexif
, because I had some problems with some Delphi-specific* sections of dExif.
Though that was some years ago; it may well be corrected by now ...
* TBH, I don't remember if it was Delphi-specific or some breaking changes in Lazarus/FPC. I think is was the first, but I might be wrong.
«
Last Edit: February 21, 2021, 12:16:12 am by lucamar
»
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Turbo Pascal 3 CP/M - Amstrad PCW 8256 (512 KB !!!)
Lazarus/FPC 2.0.8/3.0.4 & 2.0.12/3.2.0 - 32/64 bits on:
(K|L|X)Ubuntu 12..18, Windows XP, 7, 10 and various DOSes.
cpalx
Hero Member
Posts: 753
Re: How to extract metadata from an image?
«
Reply #4 on:
February 26, 2021, 10:31:29 pm »
thanks to all
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bazinga!
Newbie
Posts: 4
Re: How to extract metadata from an image?
«
Reply #5 on:
March 02, 2021, 03:16:26 pm »
I was looking for this too. Thanks a bunch.
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How to extract metadata from an image?
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