ImgView uses a modular approach so it can support future image formats. A good example is WebP which I was able to bring to the Atari ST as a plugin. It supports many obscure formats you may never encounter. Some are quite rare. ;o)

• Plugin Pack (adds modern image formats)
• AV-Server for drag & drop, like Thing Desktop
• NAES v2 for best results (worth every penny)
  Need an AES with real toolbars (otherwise extra features are disabled)
• MiNT v1.16.x or better
• Lots of ram, the more the better
• The higher the resolution the better, recommend a graphics card, BlowUP030, ScreenBlaster, etc.

Relies on exclusive features of NVDI v5.03 (lesser versions are buggy!)
NVDI official update or Installer with serial number or Preinstalled copy

fVDI is an unfinished project. ImgView won't work with fVDI alone. fVDI + NVDI is required. I've been told it works on the Firebee.
Milan VDI aka MVDI alone won't work. Installation of NVDI on the Milan is the same as fVDI, you must disable all NVDI*.SYS drivers. I've been told it works.
Any system that relies on an external 3rd party video driver will more than likely require NVDI loaded over top of it. NOVA driver would be another example.
The bottom line. There's no replacement VDI out there at the time of this writing that's a 1:1 match for NVDI. For all practical purposes ImgView requires NVDI 5.03 regardless of your setup.

ImgView might be the 1st application written leveraging the power of NVDI 5 for dithering, scaling, and transforming images on the fly. :oD
Please correct me if I'm wrong.

Contact me if you have a problem with a plugin or and idea for a new one. I need a copy of the image causing the issue.