Creates a dictionary of Histogram Error Ring Statistic (HERS) descriptor arrays from square array properties of an element. The HERS radius is taken to be the array's (side_length - 1) / 2.
| Usage | Returns | Image.hersDescriptor(selectors, buckets, peakWidthScale) | Dictionary |
| Argument | Type | Details | this: element | Element | The element with array properties. |
selectors | List, default: null | The array properties for which descriptors will be created. Selected array properties must be square, floating point arrays. Defaults to all array properties. |
buckets | Integer, default: 100 | The number of HERS buckets. Defaults to 100. |
peakWidthScale | Float, default: 1 | The HERS peak width scale. Defaults to 1.0. |