single-frame DRI = Dynamic Range Increase

technique @ http://www.flickr.com/groups/dynamic_range_increase/discuss/74457/#comment72157625054906833
1/. Duplicate background layer (or Stamp Visible = Comm+Opt+Shift+E)
2/. Desaturate = Comm+Shift+U; [am wonder what difference would a proper B&W conversion with different filters make (?)]
3/. Invert = Comm+I
4/. Set blend mode to 'Overlay'
5/. Apply 'Gaussian Blur' filter adjusting radius to taste [can use curves on this layer too!]
6/. Adjust layer Opacity to taste

halo removal tips:
http://www.flickr.com/groups/topaz/discuss/72157615202519734/
http://www.fredmiranda.com/forum/topic/753901/0&year=2009#6948953

Artist: Tomek Gooseberry;
Exposure Date: 2010:08:23 15:18:15;
Make: Canon;
Model: Canon EOS 7D;
ExposureTime: 1/250 s;
FNumber: f/8;
ISOSpeedRatings: 100;
ExposureProgram: Manual;
ExposureBiasValue: 0;
MeteringMode: Spot;
Flash: Flash did not fire, compulsory flash mode;
FocalLength: 28 mm;
Software: Adobe Photoshop CS4 Macintosh;