Image Object

Cornerstone Image Loaders return Image Load Objects which contain a Promise. The reason we have chosen to use an Object instead of solely returning a Promise is because now Image Loaders can also return other properties in their Image Load Objects. As an example, we intend to implement support for cancelling pending or ongoing requests using a cancelFn passed back by an Image Loader within an Image Load Object.

Here is an interface of such Image Load Object. You can read more about each field in the IImage section of API reference.

interface IImage {
  imageId: string
  sharedCacheKey?: string
  minPixelValue: number
  maxPixelValue: number
  slope: number
  intercept: number
  windowCenter: number[]
  windowWidth: number[]
  getPixelData: () => Array<number>
  getCanvas: () => HTMLCanvasElement
  rows: number
  columns: number
  height: number
  width: number
  color: boolean
  rgba: boolean
  numberOfComponents: number
  columnPixelSpacing: number
  rowPixelSpacing: number
  sliceThickness?: number
  invert: boolean
  sizeInBytes: number
  scaling?: {
    PET?: {
      SUVlbmFactor?: number
      SUVbsaFactor?: number
      suvbwToSuvlbm?: number
      suvbwToSuvbsa?: number
    }
  }
}