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> iPhone HDR produces an HDR image file What file format is this? iPhone produces tone mapped HEIC, yes, but that’s not HDR as you pointed out. Or do you mean

> iPhone HDR produces an HDR image file What file format is this? iPhone produces tone mapped HEIC, yes, but that’s not HDR as you pointed out. Or do you mean HDR video?

astrange 4y ago
No, the HEIC has a proprietary attachment with the HDR data as well. You can see the iPhone display adapting when you view it in Photos.
- _aavaa_ 4y ago
  Do you have any info on how that attachment is stored/accesssed?
  - illiac786 4y ago
    I think I found it: https://github.com/m13253/heif-hdrgainmap-decode https://github.com/m13253/heif-hdrgainmap-decode
    - _aavaa_ 4y ago
      Thanks! I'll take a look