Here is a version using EasyHDR to compress the data from a 16 bit tiff.
Large image 4MB at full resolution
http://users.bigpond.net.au/avandonk..._easyhdr_4.jpg
The algorithm this program uses to compress a wide dynamic range image into an 8 or 16 bit image takes into account human visual response. This image would be much better if it was derived from a HDR image generated by a wide set of exposures.
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