Attached Link: http://www2.cs.uh.edu/~somalley/hdri.html

if not that, the various other conversion programs here are worth it..thanks for the link...;)

Good'un!

Don't quote me on it but I think 'The Gimp 2' reads 16 bit tiffs, and it's free. http://www.gimp.org/

NOTE: I don't expect that most will know exactly what I'm saying below but I think you all can figure it out if you read it over once or twice. It seems HDR2TIFF doesn't make 16 bit tifs. The utility makes a floating point tifs which 3dem might be able to read as a geotiff(tif) if they are 32 bit. Also tiffer will read 32 bit floating point tiffs from 3dem(tif) and convert them to pgm (may or may not work straight from HDR2TIFF). The 32 bit Floating Point to pgm process is lossy so you will lose some information but it's better than nothing - maybe. I haven't actually tried any of this with HDR2TIFF yet so be forewarned of that. NOTE THAT The readme didn't say if HDR2TIFF makes 32 or 64 bit floating point. From HDR2TIFFS readme: "This program creates "standard" floating-point TIFF images. VERY FEW image-processing utilities read these images. Photoshop does not, for one. The only software I know that supports it are HDRView by Chris Tchou and Paul Debevec, and BMRT by Larry Gritz. * Since I could not find any information on a specific "standard" for FP-TIFFs, the format used by this program is basically of my own invention. Therefore, compatibility with all FP-TIFF-reading software is iffy." What all that means I don't know exactly but it will be interesting to find out eventually. If needbe I can convert the 32 bit tiff reader code I've already made to 64 bit but at the time I made tiffer I thought it unnecessary to go beyond 32 bit floating point. As the author apparently didn't use the Geotiff standard it might not work anyway but perhaps it's worth a look to se if 64 bit is a desirable addition when I'm up to it. Thanks Erlik for the heads up! very much appreciated, - TJ

I took a short look at an .hdr file converted to tiff by HDR2TIFF 32 bits FP per channel RGB. (96 bits.) Wow, 3dem won't touch that niether will tiffer as both are geared towards 32 bit total grayscale. Ah well. Perhaps the author's recommendations HDRView and BMRT will be the only softwares that can read it - at least for a while. - TJ