| Field | Type | Description | Note |
|---|---|---|---|
| error_threshold | float | This parameter defines maximum deviation of points to fitted curve. By default it is 30. | Optional |
| max_iterations | int | This parameter defines number of iteration for least-squares approximation method. By default it is 30. | Optional |
| colors_limit | int | The maximum number of colors used to quantize an image. Default value is 25. | Optional |
| line_width | float | The value of this parameter is affected by the graphics scale. Default value is 1. | Optional |