/**
 * Soft proofing (#606): how a page will print, painted on screen. The
 * canvas renderer paints the page as usual, then every pixel goes through
 * a proof lookup — sRGB separated through the output profile (K-only
 * neutrals, as the PDF sets them; black alone in a grayscale print, #800)
 * and the separation shown back on screen,
 * on the paper's own white when paper is simulated. Black areas large
 * enough for the PDF's rich black (a square of `richBlackMinSize` fits in
 * them) show as rich black.
 */
import type { BoundingBox } from '../vdt.js';
import type { ResolvedPrintConfig } from '../types.js';
import { type OutputTransform, type RgbLut } from './transform.js';
export interface PrintPreview {
    /** sRGB → proofed sRGB (0..1, 3 channels). */
    lut: RgbLut;
    /** Large K-only black areas print rich black: the proofed colour
     *  (0..255) and the smaller side, page px, an area needs. */
    richBlack?: {
        rgb: [number, number, number];
        minSidePx: number;
    };
    /** Screen guides drawn over the proof (Canvas): the trim and bleed boxes
     *  and the safe zone inside the trim, page px. */
    guides?: {
        safeZonePx: number;
    };
    /** Areas preflight flagged on a page (page px, by `VDTPage.index`),
     *  outlined. */
    marksFor?: (pageIndex: number) => readonly BoundingBox[];
}
export interface PrintPreviewOptions {
    /** Simulate the paper's white (absolute colorimetric), as the
     *  Sandbox's Canvas and Folio proofs do. Off: relative to the paper,
     *  white stays white (a host that tints the page itself). */
    paper: boolean;
    /** Page px per inch, for the rich-black minimum size. */
    dpi: number;
    /** Proof a grayscale print (#800): a PDF forced to DeviceGray, whose
     *  grays print in black ink alone (the luma of each colour, as the PDF
     *  sets it, as K), without rich black. */
    grayscale?: boolean;
}
/** The proof of a print setup (memoized per transform and options). */
export declare function createPrintPreview(transform: OutputTransform, print: ResolvedPrintConfig, options: PrintPreviewOptions): PrintPreview;
/** Proof RGBA pixels in place. `pxPerPagePx` is the bitmap scale (the
 *  rich-black size is in page px). */
export declare function proofPixels(data: Uint8ClampedArray, width: number, height: number, preview: PrintPreview, pxPerPagePx?: number): void;
//# sourceMappingURL=softProof.d.ts.map