import type { DetectedInk } from "./index";
/**
 * Coverage (in %) at or below which a **process** plate is treated as an
 * unused / phantom plate (e.g. CMYK on a spot-only file) and hidden from the
 * Inks panel.
 */
export declare const INK_COVERAGE_EPSILON = 0.05;
/**
 * Whether an ink plate should appear in the Inks panel.
 *
 * A declared **spot** colorant is *always* visible — the PDF carries a
 * `/Separation` for it, so its presence is a fact about the document that a
 * coverage **estimate** must never veto. The in-browser (fallback) coverage is
 * a crude RGB heuristic that routinely under-reads a spot to ~0% (pdf.js
 * composited it into the raster and the cosine hue test misses it), which used
 * to make a real Pantone / dieline appear and then vanish once coverage landed.
 *
 * A **process** plate carries no such declaration, so it's hidden only when its
 * coverage was *positively measured* at ~0%. Unknown / not-yet-measured
 * coverage keeps the plate so nothing disappears spuriously while loading.
 */
export declare function isInkVisible(ink: Pick<DetectedInk, "name" | "type">, coverageOf: (name: string) => number | undefined, epsilon?: number): boolean;
//# sourceMappingURL=ink-visibility.d.ts.map