Atlantic Light Works has released PercepTool, a tone mapping plugin for Photoshop CS3 and CS4 that attempts to duplicate the brain’s interpretation of light and shade. Developed with photographer George DeWolfe, it takes either mono or color images and re-maps the tone response to offer a more ‘realistic’ rendition with greater depth.

http://www.dpreview.com/news/0905/09052801perceptool.asp