about hdr image save about hdr-expandnet HOT 3 CLOSED

Not really since .interp()_ will do as many decimals as required to intepret de previous scale.
The idea of having [0,1] is to have more decimals to interpret your pixels colors.

When reading your HDR it will be of importance which colorspace are you using to show the images, Since a colorspace with "few" tones will do a bad job interpreting step changes.

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Sorry I thought I had answered this but my email response did not get here for some reason. Here it is:

"Not really, as the predictions are of relative luminance, so a linear scaling won't lose information (unless we are comparing across images, e.g. video frames -- which is something that should be considered in the experimental video implementation here).

The output can be rescaled linearly without loss, to match a display or absolute units if we have values for those.

(this of course assumes enough floating point precision which we almost surely have here when using float)"

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