ExifTool Forum

General => Metadata => Topic started by: rickychan on April 22, 2024, 10:40:37 PM

Title: GammaInfo in Canon DPP4
Post by: rickychan on April 22, 2024, 10:40:37 PM
The GammaInfo in DPP4 can be r/w by the tag name such as GammaContrast, GammaColorTone, GammaSaturation ...

but how about GammaInfo in other picture style group such as Portrait, Landscape ..., they should be in between TagID 0x20a01 to 0x20a20
Title: Re: GammaInfo in Canon DPP4
Post by: Phil Harvey on April 23, 2024, 07:39:29 AM
These haven't been decoded.  These are 136-byte records, and it may be difficult to present this data in a useful way.

- Phil
Title: Re: GammaInfo in Canon DPP4
Post by: blue-j on April 24, 2024, 03:11:02 PM
I don't see them reflected in the DPP4 UI either, and the values appear non-functional to me and unrelated to gamma. Are they only available/written meaningfully with HDR?  - J