export type ImageFormat = 'jpeg' | 'png';
export type ImageColorSpace = 'DeviceRGB' | 'DeviceGray' | 'DeviceCMYK';
export interface DecodedImage {
    format: ImageFormat;
    width: number;
    height: number;
    bitsPerComponent: number;
    colorSpace: ImageColorSpace;
    data: Uint8Array;
    filter: 'DCTDecode' | 'FlateDecode';
    softMask?: Uint8Array;
    softMaskBitsPerComponent?: number;
    palette?: Uint8Array;
    transparencyMask?: number[];
}
export type ImageSource = string | Uint8Array | ArrayBuffer;
export declare function toByteArray(source: ImageSource): Uint8Array;
export declare function detectImageFormat(bytes: Uint8Array): ImageFormat | null;
export declare function decodeImage(source: ImageSource): DecodedImage;
export declare function pngComponentCount(colorType: number): number;