You can use Aspose.Imaging for Python via .NET library to convert from a variety of formats to WMZ...to WMZ TIF to WMZ TIFF to WMZ WEBP to WMZ WMF to WMZ SVG to WMZ...
Using Aspose.Imaging for .NET library it is easy to convert to J2K(Wavelet Compressed Image) from other supported image formats...to J2K TIF to J2K TIFF to J2K WEBP to J2K WMF to J2K WMZ to J2K...