{"id":242,"date":"2026-03-19T10:00:00","date_gmt":"2026-03-19T10:00:00","guid":{"rendered":"https:\/\/dustmagic.io\/blog\/5-1-advanced-settings-configuration\/"},"modified":"2026-04-28T14:20:09","modified_gmt":"2026-04-28T14:20:09","slug":"5-1-advanced-settings-configuration","status":"publish","type":"post","link":"https:\/\/dustmagic.io\/blog\/5-1-advanced-settings-configuration\/","title":{"rendered":"5.1 Advanced Settings Configuration"},"content":{"rendered":"

The four advanced controls that sit behind the \u25b6 Advanced Settings<\/strong> arrow in the right panel. Use these when the main sliders aren’t quite getting the result you need.<\/p>\n

\n\"Advanced
Advanced Settings expanded \u2014 four controls plus the Scratch Detection sub-section.<\/figcaption><\/figure>\n

Minimum Contrast<\/h2>\n

How strong the dust signal must be against the surrounding image before DustMagic considers it a candidate.<\/p>\n

    \n
  • Lower<\/strong> \u2014 catches faint contamination on old slides with low-contrast dust. Risk: false positives on subtle tonal gradients (skies, skin).<\/li>\n
  • Raise<\/strong> \u2014 suppresses false positives on smooth areas. Risk: missing genuinely faint dust.<\/li>\n<\/ul>\n

    Texture Penalty<\/h2>\n

    Suppresses detection in detailed areas \u2014 foliage, fabric, brickwork, hair.<\/p>\n

      \n
    • Raise<\/strong> if textures are being flagged as dust.<\/li>\n
    • Lower<\/strong> if dust sitting over detailed areas isn’t being detected.<\/li>\n<\/ul>\n

      Focus-Based Filtering<\/h2>\n

      DustMagic separates dust from image content partly by using sharper edges \u2014 real dust sits on the film surface and has harder edges than image grain.<\/p>\n

        \n
      • Leave on<\/strong> for typical scans.<\/li>\n
      • Turn off<\/strong> for very sharp setups (high-resolution macro DSLR scans with precise focus). When everything is uniformly sharp, the gap between dust edges and image edges narrows and this filter can suppress real dust.<\/li>\n<\/ul>\n

        Scratch Detection<\/h2>\n

        Finds thin linear marks \u2014 scratches, threads, hair \u2014 that the standard dust detector may miss. Enable this for images with visible scratches over skin or smooth backgrounds.<\/p>\n

        Three sub-controls:<\/p>\n

          \n
        • Sensitivity<\/strong> \u2014 how aggressively scratches are detected.<\/li>\n
        • Min Length<\/strong> \u2014 shortest mark to count as a scratch. Raise to ignore short fibres.<\/li>\n
        • Max Width<\/strong> \u2014 widest a mark can be before DustMagic treats it as a dust spot rather than a scratch.<\/li>\n<\/ul>\n

          Tuning Order<\/h2>\n

          When detection isn’t right, work outward from the main sliders:<\/p>\n

            \n
          1. Sensitivity \u2014 first, on its own.<\/li>\n
          2. Texture Penalty \u2014 for false positives in detailed areas.<\/li>\n
          3. Focus-Based Filtering \u2014 toggle if dust is being missed on tack-sharp scans.<\/li>\n
          4. Minimum Contrast \u2014 last; raises and lowers tend to introduce trade-offs.<\/li>\n<\/ol>\n

            Save Once You’re Happy<\/h2>\n

            Once you’ve found a working combination for a film stock or scanner setup, click Save Profile<\/strong> in the panel above. Loading the profile recalls all four advanced settings together.<\/p>\n

            Next Steps<\/h2>\n
              \n
            • Main settings reference \u2014 2.3: All Settings Explained<\/strong>.<\/li>\n
            • Save and recall recipes \u2014 4.4: Saving & Loading Custom Profiles<\/strong>.<\/li>\n
            • Diagnose a specific problem \u2014 5.4: Troubleshooting Bad Results<\/strong>.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

              The four advanced controls \u2014 Minimum Contrast, Texture Penalty, Focus-Based Filtering, Scratch Detection \u2014 and when to reach for each.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","footnotes":""},"categories":[19],"tags":[],"class_list":["post-242","post","type-post","status-publish","format-standard","hentry","category-series-5-advanced-topics"],"yoast_head":"\n5.1 Advanced Settings Configuration - Dust Magic Articles<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dustmagic.io\/blog\/5-1-advanced-settings-configuration\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"5.1 Advanced Settings Configuration - 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