[Feature Request/Discussion] Support spectral images

[diiigle]

I just wanted to raise awareness for spectral images that contain more than 3 channels.

Tev now nicely shows the individual channels next to each other and one can scroll through them individually. However it would be also handy to have a rudimentary tonemapping (doesn't have to be as sophisticated as [2]) support, such that images would be integrated to sRGB. @afichet EXR layout [1] also contains the fallback RGB version of the image, but for cases where only spectral information is available (eg. over IPC) a simple sRGB conversion is useful.

Is that something that more people would fancy?

References

• [1] https://jcgt.org/published/0010/03/01/
• [2] https://adufay.gitlabpages.inria.fr/SpectralViewer/save/