Samsung metadata

[e@e@]

I'm trying to analyze some Samsung device's metadata (S23, Note20.. etc) and noticed that there is a repeating APP4 segment that is shown in the devices image file as "unknown metadata segment". Their content is not consistent as I checked binary.
Does anyone know to say something about this issue?
I also found APP11 segments in some images...

[Phil Harvey]

While I don't know for sure about this camera, repeated large APP segments tend to be raw data for preview images. 

- Phil

[e@e@]

While I don't know for sure about this camera, repeated large APP segments tend to be raw data for preview images. 

- Phil

Thank you Phil.
Is there any way to save this raw data and display it as an image?

[Phil Harvey]

Without seeing a sample I can't even be sure this is image data.

- Phil

[e@e@]

Without seeing a sample I can't even be sure this is image data.

- Phil

it does not look like an image, but here is a link to an image I found on the web with this kind of APP4:

[StarGeek]

I used the -v5 (-verbose5) option to get a hex dump of the APP4 section.  There are way too many null characters 0x00 for it to be image data, IMO. There are about 2,525 null characters out of the 6,520 characters in that section.

[e@e@]

I used the -v5 (-verbose5) option to get a hex dump of the APP4 section.  There are way too many null characters 0x00 for it to be image data, IMO. There are about 2,525 null characters out of the 6,520 characters in that section.

Yes, that's what I thought too...
So what else can it be? I saw this kind of APP4 on some Samsung devices, in each picture they are a little different, but contain a lot of nulls...