4 ms·
From the original 1996 proposal "A Standard Default Color Space for the Internet - sRGB" (https://www.w3.org/Graphics/Color/sRGB https://www.w3.org/Graphics/Col
by a_e_k 7y ago
From the original 1996 proposal "A Standard Default Color Space for the Internet - sRGB" (https://www.w3.org/Graphics/Color/sRGB https://www.w3.org/Graphics/Color/sRGB):
> The effect of the above equations is to closely fit a straightforward gamma 2.2 curve with an slight offset to allow for invertability in integer math. Therefore, we are maintaining consistency with the gamma 2.2 legacy images and the video industry as described previously.
- raphlinus 7y agoRight, should have added that to the list of not-quite-consistent explanations. Also, slight typo, black level is 16 not 10. And to this I'll add another speculative answer, similar to others that have been advanced, but I'm not sure it's ever been explicitly expressed: it means that a piecewise linear approximation in either direction can be done with good accuracy and not a huge number of segments.