April 05
Prof. Ismael H. F. Santos -  ismael@tecgraf.puc-rio.br                                                          2
Gama de uma ponta a outra (end to end)
http://www.libpng.org/pub/png/spec/1.2/PNG-GammaAppendix.html
“Good end-to-end exponents are determined from experience. For example, for photographic prints it's about 1.0; for slides intended to be projected in a dark room it's about 1.5; for television it's about 1.14.”