First, consider the fact that there is no such thing as “AI image denoising”.
Definitely not an expert, however, if I am recalling correctly, I have been reading several times about C++ thing called AI Image Denoising or very similar.
Have you tried searching the web before asking here?
Absolutely, of course! In ecosia.org and google.com. I found GitHub - twMisc/Image-denoising-Julia: Using Julia to accomplish image deonising using the Julia programming Language, however, as far as I know it is not AI supported.
Second, do you have a specific method in mind?
No, I do not. My question was very general, if there is any Julia package / library that enables AI supported image denoising (done in an easy way - I am not looking to write any - I was hoping that maybe there already is a package that does something like: input image => julia magic with ai supported denoising => output image).
Take a look at the JuliaImages Github organization. There are various packages for image processing, some of which can be used for image denoising.
Thank you. I have been using some of JuliaImages packages before, however briefly, so I do not know them all in detail. Could you point me to any specific one?
And if you are talking about neural-net-based methods, take a look at the neural-net libraries such as Flux.jl, Knet.jl etc.
Thank you. Could you point me to any specific one directly related to my question?
Also, you asked the question in the Visualization subdomain on Discourse, which is not a good fit for discussions about image denoising.
What would be the most appropriate subdomain? The description of this particular subdomain includes “Discussion of visualization in Julia, including graphics, images, plotting, etc.” I have been taking into consideration also Machine Learning subdomain, however, frankly, decided to post to this one as among all of the listed subdomains (Statistics / Numerics / GPU / Biology, Health, and Medicine / Data / Visualization / Geo / Optimization (Mathematical) / Machine Learning / Modelling & Simulations / Signal Processing / Web Stack / Astro/Space / Finance and Economics / Julia at Scale / Probabilistic programming / Maker / Quantum / Chemistry / High Energy Physics) this one is directly listing graphics and images. And what is your position with regard to those facts if I may ask? 
P.S. And by the way, HI, I have been watching some of your very interesting videos on topics related to geo statistics and reading some of your posts with particular interest on topics related to using Julia on HPC clusters.