imageLoader getMinMax.ts

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  export default function getMinMax(storedPixelData: ArrayLike<number>): {
  min: number;
  max: number;
} {
  // we always calculate the min max values since they are not always
  // present in DICOM and we don't want to trust them anyway as cornerstone
  // depends on us providing reliable values for these
  let min = storedPixelData[0];
 
  let max = storedPixelData[0];
 
  let storedPixel;
  const numPixels = storedPixelData.length;
 
  for (let index = 0; index < numPixels; index++) {
    storedPixel = storedPixelData[index];
    min = Math.min(min, storedPixel);
    max = Math.max(max, storedPixel);
  }
 
  return {
    min,
    max,
  };
}