import { RGBA } from "./ChunkPalette";
import { PNGImage } from "./PNGImage";
import { ChunkHeader } from "./Chunk";
export interface ImagePass {
    width: number;
    height: number;
    pass: number;
    offset: number;
    length: number;
    end: number;
}
export declare function getImagePasses(width: number, height: number, bitDepth: number, componentCount: number): ReadonlyArray<ImagePass>;
export declare class PNGImageInterlaced implements PNGImage {
    readonly width: number;
    readonly height: number;
    readonly images: ReadonlyArray<PNGImage>;
    readonly pixels: Uint8Array | DataView;
    readonly header: ChunkHeader;
    constructor(header: ChunkHeader, pixels: Uint8Array | DataView, width: number, height: number, images: PNGImage[]);
    private computeCoord;
    getPixel(x: number, y: number): Readonly<RGBA>;
    copyPixel(x: number, y: number, rgba: RGBA): RGBA;
    setPixel(x: number, y: number, rgba: Readonly<RGBA>): void;
    readonly hasPalette: boolean;
}