export declare function imgTensorToCanvas(imgTensor: any): HTMLCanvasElement;
export declare function resizeCanvas(canvasOrig: HTMLCanvasElement, size: {
    w: number;
    h: number;
}): HTMLCanvasElement;
/**
 * input: HTMLCanvasElement (RGB)
 * output: Float32Array for later conversion to ORT.Tensor of shape [1, 3, canvas.width, canvas.height]
 *
 * inspired by: https://onnxruntime.ai/docs/tutorials/web/classify-images-nextjs-github-template.html
 **/
export declare function canvasToFloat32Array(canvas: HTMLCanvasElement): {
    float32Array: Float32Array;
    shape: number[];
};
export declare function maskCanvasToFloat32Array(canvas: HTMLCanvasElement): {
    float32Array: Float32Array;
    shape: number[];
};
export declare function image2Canvas(url: string): Promise<HTMLCanvasElement>;
export declare function resizeAndPadBox(sourceDim: any, targetDim: any): {
    x: number;
    y: number;
    w: any;
    h: any;
};