To get the same result you need to reproduce hidden exposure correction and tone curve from ViewNX.
I know nothing about ViewNX internals, so cannot recommend something meaningful (try LibRaw's exposure correction with highlights compression as in my StackExchange reply)
To get the same result you need to reproduce hidden exposure correction and tone curve from ViewNX.
I know nothing about ViewNX internals, so cannot recommend something meaningful (try LibRaw's exposure correction with highlights compression as in my StackExchange reply)