Using Aspose.Imaging for .NET library it is easy To convert To J2K(Wavelet Compressed Image) from other supported image formats...to J2K GIF to J2K JP2 to J2K JPG to J2K JPEG to J2K PNG to J2K...to J2K EPS to J2K CDR to J2K CMX to J2K OTG to J2K ODG to J2K...