
Jasper's DRIMaker is a tiny application with which you will be able to automatically produce DRI images. This application does not produce 32-bit HDR-images which will be changed to LDR via tone-mapping but uses the so called Exposure Blending in order to crossfade each image iteratively.
So in the end, the manual technique that people do in e.g. Photoshop, is simulated.
You will find more information about this kind of technique on this page. Everything you need is an exposure sequence in JPEG/TIFF format.