{
  "_comment": "Standalone 4x upscale of an input image using ESRGAN. Required model: 4x-UltraSharp.pth (or any upscaler in models/upscale_models/). Upload with --input-image image=./photo.png.",
  "1": {
    "class_type": "LoadImage",
    "_meta": {"title": "Load Image"},
    "inputs": {"image": "REPLACE_WITH_UPLOADED_FILENAME.png"}
  },
  "2": {
    "class_type": "UpscaleModelLoader",
    "_meta": {"title": "Load Upscale Model"},
    "inputs": {"model_name": "4x-UltraSharp.pth"}
  },
  "3": {
    "class_type": "ImageUpscaleWithModel",
    "_meta": {"title": "Upscale Image (with Model)"},
    "inputs": {
      "upscale_method": "lanczos",
      "upscale_model": ["2", 0],
      "image": ["1", 0]
    }
  },
  "4": {
    "class_type": "SaveImage",
    "_meta": {"title": "Save"},
    "inputs": {"filename_prefix": "upscaled_4x", "images": ["3", 0]}
  }
}