Returns whether from_func and to_func are equivalent. There are cases
(e.g. BT601, BT709, and BT2020_10) where several functions are functionally
identical. In these cases, when doing conversion, we should consider them
as equivalent. Also, BT2020_12 is the same as the aforementioned three for
less than 12 bits per pixel.
Returns whether from_func and to_func are equivalent. There are cases (e.g. BT601, BT709, and BT2020_10) where several functions are functionally identical. In these cases, when doing conversion, we should consider them as equivalent. Also, BT2020_12 is the same as the aforementioned three for less than 12 bits per pixel.