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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. 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.

Another option is to re-implement the codec myself.

It would be a nice-have to be able to script this.

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

Zara Khan
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jtlz2
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  • Maybe make a 32-bit virtual machine in VirtualBox, grab a copy of Windows and an old copy of CorelDraw from eBay, load it up, convert the lot and archive your VM. – Mark Setchell Jan 22 '18 at 09:40
  • @MarkSetchell Thanks! It would be nice to script it... Sorry for not saying (will update) – jtlz2 Jan 30 '18 at 06:22
  • @jtlz2 I also have .wi files that I need to convert / decompress to .bmp, CorelDraw in 32 bit Windows can import .wi files and save them as .bmp. Do you know where I can find this Summus algorithm? – langjacques Jun 10 '19 at 16:12
  • @langjacques Might be able to help - what is your use case? – jtlz2 Jun 10 '19 at 16:37
  • @jtlz2 I need to decompress an image (.wi) byte array that is scanned from a South African driving license barcode, I am able to decrypt the barcode but the photo data is compressed – langjacques Jun 10 '19 at 17:23
  • @langjacques My company now offers an API to do that very thing (see https://sprinthive.com/#advanced_kyc). Get in touch with me if you are interested. – jtlz2 Jun 13 '19 at 12:19
  • @jtlz2 did you solve this? Please write an answer describing the solution, to help others. – Pibben Oct 18 '19 at 11:10

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