@itk-wasm/image-io/src/fdf-read-image.ts

Input and output for scientific and medical image file formats.

// Generated file. To retain edits, remove this comment.

import {
  BinaryFile,
  JsonCompatible,
  Image,
  InterfaceTypes,
  PipelineOutput,
  PipelineInput,
  runPipeline
} from 'itk-wasm'

import FdfReadImageOptions from './fdf-read-image-options.js'
import FdfReadImageResult from './fdf-read-image-result.js'

import { getPipelinesBaseUrl } from './pipelines-base-url.js'
import { getPipelineWorkerUrl } from './pipeline-worker-url.js'

import { getDefaultWebWorker } from './default-web-worker.js'

/**
 * Read an image file format and convert it to the itk-wasm file format
 *
 * @param {File | BinaryFile} serializedImage - Input image serialized in the file format
 * @param {FdfReadImageOptions} options - options object
 *
 * @returns {Promise<FdfReadImageResult>} - result object
 */
async function fdfReadImage(
  serializedImage: File | BinaryFile,
  options: FdfReadImageOptions = {}
) : Promise<FdfReadImageResult> {

  const desiredOutputs: Array<PipelineOutput> = [
    { type: InterfaceTypes.JsonCompatible },
    { type: InterfaceTypes.Image },
  ]

  let serializedImageFile = serializedImage
  if (serializedImage instanceof File) {
    const serializedImageBuffer = await serializedImage.arrayBuffer()
    serializedImageFile = { path: serializedImage.name, data: new Uint8Array(serializedImageBuffer) }
  }
  const inputs: Array<PipelineInput> = [
    { type: InterfaceTypes.BinaryFile, data: serializedImageFile as BinaryFile },
  ]

  const args = []
  // Inputs
  const serializedImageName = (serializedImageFile as BinaryFile).path
  args.push(serializedImageName)

  // Outputs
  const couldReadName = '0'
  args.push(couldReadName)

  const imageName = '1'
  args.push(imageName)

  // Options
  args.push('--memory-io')
  if (options.informationOnly) {
    options.informationOnly && args.push('--information-only')
  }

  const pipelinePath = 'fdf-read-image'

  let workerToUse = options?.webWorker
  if (workerToUse === undefined) {
    workerToUse = await getDefaultWebWorker()
  }
  const {
    webWorker: usedWebWorker,
    returnValue,
    stderr,
    outputs
  } = await runPipeline(pipelinePath, args, desiredOutputs, inputs, { pipelineBaseUrl: getPipelinesBaseUrl(), pipelineWorkerUrl: getPipelineWorkerUrl(), webWorker: workerToUse, noCopy: options?.noCopy })
  if (returnValue !== 0 && stderr !== "") {
    throw new Error(stderr)
  }

  const result = {
    webWorker: usedWebWorker as Worker,
    couldRead: outputs[0]?.data as JsonCompatible,
    image: outputs[1]?.data as Image,
  }
  return result
}

export default fdfReadImage