[Tig] rec709 log lin #'s
glennchan at gmail.com
Thu Sep 13 01:26:23 BST 2007
You can grab the #s off poynton's gamma FAQ:
You can also grab them off ITU-R BT. 709 by taking advantage of ITU's
3 free downloads promotion.
Remember to account for where black and white level are / should go.
It gives the transforms/formulas to convert to linear light values.
2a- I am not familiar with what "presets" you are referring to.
2b- It's also not clear what type of log values you are referring to.
You will need to look up the log formula or ask.
2c- By "linearization", do you mean conversion to linear light or
so-called ""linear"" gamma corrected values?
Some people use the term "linear" to refer to gamma-corrected values
(which I feel is highly confusing and should be avoided). From your
post it seems like you mean gamma-corrected Rec. 709 values. In any
case, poynton's gamma FAQ has the formula.
More information about the Tig