Re: RPP raw photo processor 64
Re: RPP raw photo processor 64
- Subject: Re: RPP raw photo processor 64
- From: Ben Goren <email@hidden>
- Date: Wed, 05 Jun 2013 20:43:01 -0700
On Jun 5, 2013, at 8:07 PM, Lars Borg <email@hidden> wrote:
> If I remember my numbers, the tracking error for neutrals was in the range 0.5 - 1 dE
If your neutrals are within 1 DE before profiling, then you should be golden, as any decent LUT profile with a sufficient patch count should have no trouble correcting that.
For that matter, I'm personally just fine with 1 DE errors after profiling. In real-world conditions, if you're that close then there's something else (such as the shirt you're wearing) that's likely throwing something off more than that.
High single digit DE errors after profiling worry me, but not so much if they're in colors too saturated to reproduce anyway. Double-digit DE errors need to be fixed, especially if average errors are out of the low single digits.
I'll also note that you can easily introduce more than single-digit DE errors in linearity just by a lighting setup that's less than perfect that you haven't normalized with a flat-field image. If I found 1 DE errors in linearity, I'd assume that the hardware really is linear for all practicum porpoises and that it's something in my setup that was introducing the non-linarity.
Cheers,
b&
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