09-17-2022, 09:30 AM
Yes, there are missing tags...
However,
Some tools put together stuff from the Exif and more technical file data or data computed from the Exif. If you use exiftool -a -H -g Input.jpg you see that some data has no "tag" and only applies to the file, and not to the image that the file is a representation of, so this can change with each instance of the file, and these include Image Height, Image Width and Bits per sample. in particular, if I create a file with 16-bit precision in Gimp and export it to TIFF, I get a 16-bit Tiff and the "Bits per sample" is indeed 16.
However,
Some tools put together stuff from the Exif and more technical file data or data computed from the Exif. If you use exiftool -a -H -g Input.jpg you see that some data has no "tag" and only applies to the file, and not to the image that the file is a representation of, so this can change with each instance of the file, and these include Image Height, Image Width and Bits per sample. in particular, if I create a file with 16-bit precision in Gimp and export it to TIFF, I get a 16-bit Tiff and the "Bits per sample" is indeed 16.