On Sat, May 15, 2021 at 9:00 PM C.H.Ling <ch_photo@xxxxxxxxxxxxx> wrote:
> I tried DeNoise AI two years ago, wasn't very happy with the result
> since it removed some fine details together with the noise (with digital
> image), don't know if the updated version will do better.
>
> For film images I used to use Neat Image to remove the grain. On the
> other hand RawTherapee also do a fine job in noise removal.
>
> I agree with you Sharpen AI does not work very well with film images.
> But it do ok sometimes:
>
> http://www.accura.com.hk/temp/2000-01X-22T.jpg
>
> http://www.accura.com.hk/temp/2000-01X-22T-SAI-motion-noisy-77-32.jpg
I cannot get the second image to load, unfortunately.
It does not perfectly stabilize this phone camera image but do a fine
> job in noise removal.
>
> http://www.accura.com.hk/temp/IMG_0326T.jpg
>
> http://www.accura.com.hk/temp/IMG_0326T-SAI-motion.jpg
>
> What I hope is the later Sharpen AI update can make GPU processing as
> good as CPU in image quality as it runs five times faster with my GTX 1060.
>
I haven't been using the programs very long, and I upgraded to the latest
versions almost immediately after having gotten the last version set up.
There were a couple things about how the previous version of Sharpen AI
worked that I liked, but I can't remember now. The current program works
faster though.
I started with Gigapixel, which is probably odd, but I was the most curious
about being able to print large from extractions of E-1 images. I've been
very satisfied with that. But by starting with GP, I discovered that all
of the programs do some variation of noise removal and sharpening. As for
DeNoise, I find that it has mostly improved the coherence of fine detail or
otherwise done no harm. I hope it is not some lack of sensitivity on my
part. It has been especially helpful for making something useful out of
landscapes shot on color print film which were probably developed in
somewhat exhausted chemicals.
Because I ended up purchasing the entire suite, I was given JPG to RAW AI
at the same time. I've only used this with a couple phone images. I have
not determined that there is an advantage to using JPG to RAW AI over
simply pulling the phone image into PS and saving it at 16bit and then
running it through DeNoise.
I have a 10-year-old Asus running these programs. The video card is old,
of course, and the fans run hard but the GPU seems to get the job done. If
the process takes more than a couple minutes, I might have to open the
laptop so that it cools better, or the machine shuts down to cool off,
though I usually find that I have not lost my work when I start up again.
Joel W.
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