preprocessing.json

{
  "input_name": "image",
  "width": 64,
  "height": 64,
  "color_space": "grayscale",
  "pixel_format": "one_component_8bit",
  "background": "black",
  "strokes": "white",
  "drawing_bounds": "centered and aspect fit with 10% padding",
  "stroke_style": "4px round stroke at 4x supersampling, then Lanczos downsampled",
  "pixel_value_range": [0, 255],
  "model_internal_scale": 0.00392156862745098,
  "note": "The model applies 1/255 internally. Do not normalize the source pixels twice."
}