First time I used it, I got the error message. After that it worked. Then you save the HDR and can load an change it with different settings.
First images, as you are adjusting and testing, use the small resolution, 256 x whatever, so you can see the changes as you make them. Then when you get it "right" make a larger one. You'll see the progress on the bottom, 25-50-75-pause... and an image pops up.
Might be the computer or the space needed for the temp. image. (I'm in the dark) But once I changed the temp file to a different partition on the hard drive, it worked OK.
I have much to learn. First off, I might try doing a real three exposure picture and not a scan from film.
By the way, the image looks different on my other desktop, kind of purpleish and different on the laptop. The thing that worked was the clouds and you can see how the lights in the doorways came out. The original that I saved had more brown tones, like an ancient ruin should have.
At first it was pink and light colored and had some interesting contrasts, I corrected it to this duller version.
Oh, by the way, my computer that I used is my "good" (aka best) computer and 2 mhz with a 160 gb hard drive. I do load up on memory with older machines, it has a Gig. Maybe someone with more experience can help more with that error message?
HP S20 scanner is the older SCSI version, I set it for 2400, and the grain just tore up the picture making it look like it does. That's grain, not some artsy Elements 5 plugin. :mrgreen: