New Post: ResolutionUnit

I have added ResolutionUnits to MagickImageInfo. And you found a bug in MagickImage.ResolutionUnits. It returns an invalid value, this will be fixed in the next release of Magick.NET.

The format function of identify.exe is already available under the name MagickImage.FormatExpression. You could use that for now to get the correct ResolutionUnits.