Originally posted by Kunzite As I said earlier, you can denoise a RAW containing only noise to your heart's content, and you won't lose any bit of detail - because no detail is there. You can even paint it black, or pink if that's your favorite color.
I guess what you're against of is losing noise, not detail
That explains why you don't like the accelerator!
I had practically left this thread but stumbled across some measurements that help to understand that the K-1 II's "accelerator" unit is not able to magically only remove noise but leave signal (detail) intact. I thought I'd share these here, for those interested.
PDN measured the
amount of artefacts in K-1 II images due to image processing (jump to "Texture loss" to see the corresponding graphs). This analysis uses the
Imatest "Dead Leaves"/"Spilled Coins" charts which support the analysis of how much detail is lost in what spatial frequency band.
This confirms the analysis results by Bill Claff.
Yes, the loss of detail may be considered too small to matter.
Yes, the loss of detail may be considered a welcome trade off against lower noise.
No, it's not an imagined phenomenon.
PDN also confirms the presence of sharpening:
"The K1 Mark II sharpens images more than the K1 did, although both produce relatively little sharpening"
I was surprised to read that the K-1 already used sharpening. It would be very interesting to see the same analysis results for the K-1 and other DSLRs.
EDIT: I'm unsure whether the respective
"Image Engineering" test procedures are based on RAW files or certain JPEG settings they describe. I only searched the document describing the procedures instead of reading every word.
So technically, the artefacts measurements could be purely based on JPEG files. Seems unlikely but I wouldn't be able to exclude this possibility at this point.
Anyhow, let's hope Ricoh will give us the possibility of opting-out, should they choose to offer in-camera image processing again.
This would have to please everyone.
Last edited by Class A; 01-08-2019 at 04:40 AM.