On 3/26/2021 11:29 AM, DZDub wrote:
On Fri, Mar 26, 2021 at 8:30 AM DZDub <jdubikins@xxxxxxxxx> wrote:
On Fri, Mar 26, 2021 at 12:52 AM Moose <olymoose@xxxxxxxxx> wrote:
The one piece that I mention often is the "sharpening" effect on low ISO
images (Defined here, with contemporary
cameras, as below 800.) of Topaz Denoise AI. As no one ever responds,
positive or negative, perhaps they don't believe
me, don't care . . . ?
One of a few examples I've posted.
<
http://www.moosemystic.net/Gallery/tech/Process/Topaz%20AI/TopazDenoise%20modes/TopazNRAI.htm
I don't know yet what the different levels of Denoise in your labels mean,
but they all seem to have some "clarity" effect.
Denoise AI has three Modes, Denoise AI, Clear AI and Low Light. That's what the shorthand is about; the numbers are the
slider settings.
I like that effect and it
does genuinely seem to sharpen -- and more subtly than FM. It seems to
emerge from the image in an organic fashion.
Magic, I say, Magic!
It's puzzling because it seems more significant than any NR in play.
As I wrote just now, probably an unintended consequence.
I wouldn't have been looking for NR based on the quality of the original image.
I do a lot of stuff like LCE and other tools that tend to exacerbate even very
modest noise.
Lets face it, even an A7 II at 100 ISO has some noise, I can see it at 100%,
and LCE makes it more visible.
So, I've always used NR as a first step in processing. Also v. important for
sharpening and uprezzing.
You say this effect is mainly evident in low ISO images?
It varies, depending on camera and subject, but yes, the Denoise AI Mode with settings of 21, 1, 15 mostly works with
lower ISOs. But Clear AI often does similar wonders on mid range ISOs, then, sometimes, makes objectionable artifacts.
The beauty of that latest updates is seeing all three right away, either offering a pick or clues as to where to make
adjustments.
Do you then use Denoise on everything?
Yes. (Sure, there must be exceptions, but the rule prevails.)
If not, why not?
What I have liked about Sharpen AI is that it is still possible to get a
little additional sharpening with FM (usually 1, hardly ever 2).
One oddity of FM, compared to the competition, is the lack of sub-pixel settings. I apply it with an Action in PS, which
applies it on a new layer. I then adjust opacity for effect. If you see an image of mine ending in "oof40", for
example,that means I used FM, Out of Focus Mode, 1 pixel, at 40% opacity. "oofm" means I mixed settings and/or opacity
in different parts of the image. There will be a downsized PSD file with all the layer details. Classic example would be
using a setting of 2 only on the eyes, adjusted with painting and/or opacity.
Les Din Moose
--
What if the Hokey Pokey *IS* what it's all about?
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