import type { FormatEnum } from 'sharp';
export declare enum ImageFormat {
    AVIF = "avif",
    WEBP = "webp",
    JPEG = "jpeg",
    PNG = "png",
    SVG = "svg",
    GIF = "gif",
    UNKNOWN = "unknown"
}
export declare function formatToMimeType(format: ImageFormat): string | undefined;
export declare function mimeTypeToFormat(mimeType: string): ImageFormat;
export declare function formatToExtension(format: ImageFormat): string;
export declare function extensionToFormat(ext: string): ImageFormat;
export declare function fileNameToFormat(fileName: string): ImageFormat;
export declare function sharpFormatToImageFormat(format?: keyof FormatEnum): ImageFormat;