![]() If the dust specks are a unique color, you could select one and choose the Select > Similar command. I already said that I know about that and don't like it, at least when applying it to the whole photo. Photoshop has the Filter > Noise > Dust and Scratches filter. Naturally that wouldn't catch everything - there are occasionally defects that are dark instead of light (dust in the camera instead of the scanner) or particles that are translucent, but the ugliest ones are the bright white ones, and I would happily do additional touches manually if a tool could eliminate the specks like this.ĭoes anything like this exist in Photoshop, or can I kluge a macro from existing tools? I'm also open to suggestions of third-party tools (PS plugins or standalone tools for Windows) if free or not too expensive. Apply the same technology as the Spot Healing Brush (content-aware) to each of those selected areas. ![]() a luminosity change of at least 50 within 2px). Select all areas of white (or nearly white - perhaps a threshold like the Magic Wand tool has) that have edges sharper than some threshold (e.g.Given a scan at a high resolution like my sample below, so that the dust is much sharper than any content, I imagine a tool doing something like this: So my engineering brain started imagining how the various smarts of Photoshop could theoretically be combined to automate it, and I thought I'd ask if something like this is possible. I tried the Dust & Scratches filter, but even at a setting of only 2 or 3 pixels, I was not happy with the effect on the image content, and a setting of 1px didn't catch enough of the dust. Because it was scanned at 1200dpi, the image content had no sharp color changes, making the dust distinctive by sharpness. While doing that on a a particularly dusty scan of an old 8x10 aerial photo of a marathon (see small snippet below), I decided to look for something more automatic. The content-aware Spot Healing Brush does a magical job, but it's laborious to click on all the spots one by one. I will, but I will never eliminate it, and I'm getting ready to scan a LOT of photos. I know, I know - work harder on avoiding the dust in the first place. I have trouble with dust getting into the scanning process of printed photos.
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