How do you turn a traditional blue-pencil sketch plus pencil 'inking' into clean digital line art in Krita, step by step?

Revoy's 2014 tutorial turns a blue-pencil sketch into clean line art in Krita 2.8.5 (Pentel 0.5 mm blue lead, 300 dpi scan, channel curves so blue drops out, Desaturate Max, Levels, manual cleaning); the page now carries the same 'AI derivation prohibited' footer, in tension with the author's statement that pre-October-2026 material stayed plain CC. Curator qualifications: Rights conflict preserved as in C2-B29-E4-07. Exact curve settings and HSV colourise step not re-read verbatim; 2014 Krita version. Page text only; no images downloaded. Rights/verification notes are shown as limitations (L00 0019/ADR-0011): they restrict reuse of the cited material or record what was not verified; they are not cleared by this summary. Limitations: Tutorial for Krita 2.8.5 (2014). [rights_conflict_record] Eligible as tutorial observation with the conflict preserved. Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

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  "citations": [
    {
      "url": "https://www.davidrevoy.com/article239/clean-blue-sketch-traditional-line-art-to-color-it-digital-with-in-krita",
      "note": "davidrevoy.com article239 (Clean blue sketch ... in Krita); davidrevoy.com article1178 licence update (readback from CA-B009)"
    }
  ]
}