How to handle uint8/[0,255] format HSI?

[HaleySchuhl]

Start a discussion about anything you would like
So far plantcv has added support for a handful of different hyper/multispectral image formats (#972, #956, #781) and @rayn-alex brought up a formatting incompatibility that could make sense to handle automatically.

"It might make sense to introduce a cast to float, possibly already in read_data depending on the input data type. So the Spectral_data objects are always float32/0-1. The RAYN Vision System camera for example produces uint8/0-255 multispectral images and I need to convert to float32 and rescale them to 0-1 in my pcv workflows because otherwise the results do not make sense."

This sounds like a good argument to cast Spectral_data during read_data, or even inside _find_closest / other ideas ??

[rayn-alex]

I think it makes more sense in read_data because then all Spectral_data objects have the same array data type. Is there anything against that?

I guess the only argument against needless conversion is the floating-point error, but I guess it's negligible for these applications, right?

[rayn-alex]

Here is a sample image from the RVS Camera
sample_set.zip