11

I have a large sample of .WI images I need to convert to e.g. JPEGs, but the format now seems defunct.

The mimetype is image/wavelet.

The compression algorithm was developed by Summus, a US company that also now seems defunct.

The last CorelDraw support for the format was under 32-bit Windows (see https://community.coreldraw.com/talk/coreldraw_graphics_suite_x6/f/corel-photo-paint-x6/33558/is-wi-supported-in-x). If I go down the hardware route I need to be able to make calls to a server via e.g. REST.

I think under *nix djvulibre might be able to open the files, but I haven't been able to test this yet. Also IrfanView.

Another option is to re-implement the codec myself.

Does anyone here have any expertise in this area?

Apologies if this is not the right forum - is there a better place?

Thanks for all help!

Here's an input sample http://www.wolfgang-rolke.de/graphics/wavelet.wi

Improve this question
7
  • 33-bit?! :-) Do you mean NT-based or DOS-based? I think you've asked in the right place; thanks for the question. – wizzwizz4♦ Jan 21 '18 at 11:38
  • Shouldn't be too hard to fire up a recent Linux installation in a VM and give the djvu family of tools a shot at it... – user Jan 21 '18 at 12:46
  • @wizzwizz4 Good point - need to check which were last CorelDraw versions to support WI – jtlz2 Jan 21 '18 at 15:12
  • @MichaelKjörling A next step sounds like me providing a sample - how hopeful are you? :/ – jtlz2 Jan 21 '18 at 15:13
  • 1
    At least ddjvu can't decode it: ddjvu: Cannot decode document. – kolen Jan 25 '18 at 18:39
2

There's no need to go down the hardware route to run 32-bit apps. 32-bit apps run on 64-bit Windows.

However, not all old apps run on newest operating systems despite the bitness. I own for example CorelDraw X3, which does not run on Windows 10. But I run it on a 32-bit Windows 7 Client OS on virtual machine regularly (on a 64-bit Windows 10 host). That setup is also useful for running 16-bit apps on a 64-bit windows Machine, which is not supported directly.

Improve this answer

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.