So I look on some Samsung images from various Galaxy devices, and I encountered in different usage of APP segments.. for example, Galaxy A55 has APP4 & sometimes APP11, Galaxy A15 has APP4, APP5, APP6, APP7 & APP8..
Does any one know what are those segments for?
or why it not even consistent per device?
If you can upload some samples I can try to answer this.
- Phil
Quote from: Phil Harvey on December 19, 2024, 01:30:26 PMIf you can upload some samples I can try to answer this.
- Phil
look at this image for example.. straight out of the camera, and includes APP5 & APP6 & APP7 & APP8..
https://jumbomail.me/j/Y3ECzJM6mEm9IuJ (https://jumbomail.me/j/Y3ECzJM6mEm9IuJ)
I took a quick look. There is definitely a lot of empty space in these segments. Lots of zeros and one segment is all ones. But there is at least a bit of potentially useful metadata (a timestamp in APP6). There are also lots of tables of 4-byte integers -- I don't know what these are for, but likely a lookup table, perhaps for something like an hdr image maybe. There is also something that looks more like image data. Perhaps a depth image?
These are only guesses for now. Perhaps in time this information will be understood.
- Phil
Quote from: Phil Harvey on January 02, 2025, 09:21:14 PMI took a quick look. There is definitely a lot of empty space in these segments. Lots of zeros and one segment is all ones. But there is at least a bit of potentially useful metadata (a timestamp in APP6). There are also lots of tables of 4-byte integers -- I don't know what these are for, but likely a lookup table, perhaps for something like an hdr image maybe. There is also something that looks more like image data. Perhaps a depth image?
These are only guesses for now. Perhaps in time this information will be understood.
- Phil
Yehh.. hope so..
I found Samsung mobile devices images are so messy and inconsistencies...