AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |
Back to Blog
Topaz denoise 5 banding noise3/2/2023 ![]() ![]() This is an un-retouched snapshot from my iPhone 4. You’ll see what I mean right away when you use the plug-in. Grain is something that we expect to see in an image and throwing out the grain with the noise can often make an image appear fake or plastic. Noise most often occurs in low light situations were you are using a higher ISO than is comfortable for your camera. If you don’t know what those are just Google it. Noise can be compared to snow on a TV broadcast, hmm some of you likely don’t know about over the air TV, Ok how about static on the radio…umm no radio. I should perhaps point put what noise is the notion that some noise is a good thing. It is really an essential tool for everyone’s digital dark room. It works really well in eliminating noise in your phone images as well as your high ISO images. What is strange that if you enlarge to 400% and just look at the processed preview of a small area the worst artifact is always in the right top corner of the preview, irrespective of where exactly you are in the image along the top border.Ībove image, sharpened in Topaz AI (default parameters) => Artifacts galore along the top borderThis is one of the most useful filters that Topaz makes. I downloaded your original image and ran it like you did and get exactly the same result, I varied the top two sliders ("Remove Blur" and "Suppress Noise") a bit but again the problem persists. Your problem if reported could result in a solution. ![]() And as Pegelli suggested, do report this to Topaz as they are quick to look into these issues. Just a couple of thoughts here, hoping that one might provide a solution. My MBPro video card only has 2gb VRAM so I'm probably overtaxing the system by running Photoshop or Aperture at the same time. If I run the image through again and close all other apps that interference disappears. You might try a different raw converter and see if this solves the problem since Topaz might not be using C1 to train their AI.Īnother point: I've personally found that if I'm running another application and working on something unrelated while an image is being run through these Topaz AI programs I'll sometimes get a block of multicolored interference, for want of another word, somewhere in the background. Either way, it could lead to better tools." Then feeding ACR conversions, the supposed grid structure would look to an AI system as genuine detail to preserve and enhance, in whatever mode it was operating.Īgain speculating, if so, it could lead to improvements in Raw conversion and/or of the "training set". If so, it might suggest that in using the specific images used for training (the training set), the various models were derived from under-represented common ACR conversions. One photographer reported that he was getting banding until he switched raw converters, and then the banding disappeared.īart van der Wolf (who is actually doing some testing for Topaz) has speculated: "Actually, this (potential) Raw converter dependency is a very fascinating observation that will take further investigation to validate. Though this isn't banding, over on the luminous-landscape forum there are a number of threads on the new Topaz AI programs and users are reporting a variety of issues, some of which have been solved due to user feedback. I thought it was very unlikely that it would, but now we're sure.Įxported from LR, without any sharpening (slider at zero in the converter, none in the export dialog) I'll find an image from myself that shows the same effect and do the same.Įdit: just did, but I processed an image to about the same size as yours from Lightroom, it gave very similar artifacts in Sharpen AI along the blue sky top border. I'd say it's a bug and I would report it to Topaz. What is strange that if you enlarge to 400% and just look at the processed preview of a small area the worst artifact is always in the right top corner of the preview, irrespective of where exactly you are in the image along the top border.Īnd in your original file I can't see anything (not even a hint) of slightly different colour blue pixels that the program might mistake for detail that needs to be brought out. Click to expand.I downloaded your original image and ran it like you did and get exactly the same result, I varied the top two sliders ("Remove Blur" and "Suppress Noise") a bit but again the problem persists.
0 Comments
Read More
Leave a Reply. |