"MICROMETER" is not a valid resolution unit under standard TIFF spec.

[den-sq]

The standard TIFF tag spec only allows "None", "Inches", or "Centimeters"; "Micrometers" is supported by tifffile but can cause issues elsewhere; e..g. Dragonfly error / warning on import via python

_TIFFVSetField: \wsl$\Ubuntu\mnt\wsl\PHYSICALDRIVE2p1\B10\Segmentations\R4A_OC_T\R4A_OC_FP.tif: Bad value 5 for "ResolutionUnit" tag.

Can be addressed by using 'centimeter' and centimeter values instead.

[den-sq]

Addressed by #8