Does anyone have a workflow to go from CR3 to gain mapped jpeg? This would produce jpegs that will display HDR on compatible hardware with the chrome browser: https://developer.android.com/media/platform/hdr-image-format
I don't see a way to do it in DPP or in darktable.
My R5 can save images as HEIF, however they're not compatible with Google Photos, and DPP has limited ability to edit it (Most of the usual sliders are inoperable). I'd prefer to make edits on the RAW source, and export to a format usable in web browsers both in SDR and HDR, and the gain mapped jpeg format seems to fit that.
