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Anonymous
Tone mapping can be made more effectively when starting from an "HDR" (as is higher than 24 bit per pixel) image, but as in the image below, it results in a LDR image. That picture you are seeing is 24 bit as the jpeg standard doesn't support anything else. Here is a paper published in 1998 on the subject: http://www.debevec.org/Research/IBL/debevec-siggraph98.pdf
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