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Export to jpg stripping exif data sometimes.
#10
(08-07-2020, 08:23 AM)Kevin Wrote: You mention Pentax. That reminds me of the bizzare Pentax issue: https://gitlab.gnome.org/GNOME/gimp/-/issues/2253

You sir are a genius!  I edited PENTAX to Pentax.  There were two occurrences in "Pentax maker notes" Lens type which was coded and I could not change that but I made two changes in "Image file main directory image" which did not do the trick but I found another two occurrences in "XMP TIFF properties"  and bingo!  Now that is one trial and I need to do more images and test if the changes in XMP TIFF are sufficient on their own but this is a good start.  I will post results here.  As you say, bizarre.

Thank you.

(08-07-2020, 08:27 AM)Ofnuts Wrote:
(08-07-2020, 02:10 AM)kaditcha Wrote: Looking at the data in another viewer I notice that the one that works has little endian byte order and the other camera has big endian but I have no idea of the significance of that. 

Also noticed that. But I have images from a former smartphone that are big-endian and that work. And It appears that Gimp reads both kinds (as shown in Image>Metadata), but always uses small-endian when saving the image (at least on X86/AMD64 systems, but these are nearly all laptops/desktops these days).
This is a Lenovo laptop so nothing wierd in hardware.

(08-07-2020, 09:48 AM)kaditcha Wrote:
(08-07-2020, 08:23 AM)Kevin Wrote: You mention Pentax. That reminds me of the bizzare Pentax issue: https://gitlab.gnome.org/GNOME/gimp/-/issues/2253

You sir are a genius!  I edited PENTAX to Pentax.  There were two occurrences in "Pentax maker notes" Lens type which was coded and I could not change that but I made two changes in "Image file main directory image" which did not do the trick but I found another two occurrences in "XMP TIFF properties"  and bingo!  Now that is one trial and I need to do more images and test if the changes in XMP TIFF are sufficient on their own but this is a good start.  I will post results here.  As you say, bizarre.

Thank you.

(08-07-2020, 08:27 AM)Ofnuts Wrote:
(08-07-2020, 02:10 AM)kaditcha Wrote: Looking at the data in another viewer I notice that the one that works has little endian byte order and the other camera has big endian but I have no idea of the significance of that. 

Also noticed that. But I have images from a former smartphone that are big-endian and that work. And It appears that Gimp reads both kinds (as shown in Image>Metadata), but always uses small-endian when saving the image (at least on X86/AMD64 systems, but these are nearly all laptops/desktops these days).
This is a Lenovo laptop so nothing wierd in hardware.
Except perhaps my spelling Smile
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RE: Export to jpg stripping exif data sometimes. - by kaditcha - 08-07-2020, 09:48 AM

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