Method preprocess

tfjs-automl/src/img_classification.ts:57–64

(input: ImageInput, options: ImageClassificationOptions)

  }

  private preprocess(input: ImageInput, options: ImageClassificationOptions) {
    // Preprocessing involves center crop and normalizing between [-1, 1].
    const img = imageToTensor(input);
    const croppedImg = options.centerCrop ?
        centerCropAndResize(img) :
        expandDims(image.resizeBilinear(img, IMG_SIZE));
    return sub(div(croppedImg, DIV_FACTOR), SUB_FACTOR);
  }
}

export async function loadImageClassification(modelUrl: string):