export interface ImageDimensions {
    width: number;
    height: number;
}
/**
 * Reads pixel dimensions from an image file header.
 * Supports PNG, JPEG, GIF, BMP, TIFF, WebP, PSD, and HEIC/HEIF.
 * Returns null for unsupported or unreadable formats.
 */
export declare function readImageDimensions(filePath: string): ImageDimensions | null;
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