incrediBILL - 5:44 am on Oct 6, 2012 (gmt 0)
Like the man said, it's not an app thing, it's a hardware thing.
Can you say filters? :)
What you need is a filter for a digital camera but the gels are about $30 and the real filters are about $100.
The silicon used in digital camera sensors is sensitive to near infrared light, so if we physically filter out visible light, then what's left will be the infrared image. There are a variety of filters available to do this. Some of the best are made by Harrison & Harrison, but commercial filters can cost over $100. One inexpensive alternative is to use unexposed but processed slide film (it looks black). Tape it over your lens opening and it will allow infrared to pass through while blocking visible light. Or you can buy a small "gel" filter that admits infrared for about $30. Look for a Wratten 87 filter made by Lee or Kodak to get started.
If you have a film camera a cheap one shot alternative might be just buy a roll of IR film, assuming it's still in production, and then see if you can find anyone still processing it.
I should check my camera bag, I thought I had a Wratten 87 filter, can't remember!