import { Tensor } from "onnxruntime-web";
/**
 * Resize & normalize an image (HTMLImageElement or Canvas) into a CHW float32 tensor,
 * padded to square [ENCODER_INPUT_SIZE x ENCODER_INPUT_SIZE].
 */
export declare function preprocessImageForEncoder(image: HTMLImageElement | HTMLCanvasElement, targetSize?: number): {
    tensor: Tensor;
    originalWidth: number;
    originalHeight: number;
};