shared getMinMax.ts

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  import type { Types } from '@cornerstonejs/core';
 
/**
 * Calculate the minimum and maximum values in an Array
 *
 * @param {Number[]} storedPixelData
 * @return {{min: Number, max: Number}}
 */
function getMinMax(storedPixelData: Types.PixelDataTypedArray): {
  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 = 1; index < numPixels; index++) {
    storedPixel = storedPixelData[index];
    min = Math.min(min, storedPixel);
    max = Math.max(max, storedPixel);
  }
 
  return {
    min,
    max,
  };
}
 
export default getMinMax;