/**
 * Statistical analysis of color palettes to extract transformation patterns
 */
import { Effect } from "effect";
import type { StopPosition } from "../../schemas/palette.js";
import type { AnalyzedPalette, TransformationPattern } from "./pattern.js";
declare const PatternExtractionError_base: new <A extends Record<string, any> = {}>(args: import("effect/Types").Equals<A, {}> extends true ? void : { readonly [P in keyof A as P extends "_tag" ? never : P]: A[P]; }) => import("effect/Cause").YieldableError & {
    readonly _tag: "PatternExtractionError";
} & Readonly<A>;
/**
 * Error when pattern extraction fails
 */
export declare class PatternExtractionError extends PatternExtractionError_base<{
    readonly reason: string;
    readonly paletteCount: number;
}> {
}
/**
 * Extract transformation patterns from analyzed palettes
 *
 * Calculates ratios for each stop relative to the reference stop (500)
 */
export declare const extractPatterns: (palettes: ReadonlyArray<AnalyzedPalette>, referenceStop?: StopPosition) => Effect.Effect<TransformationPattern, PatternExtractionError>;
export {};
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