`adaptiveThreshold`

transforms a grayscale image to a
binary image using an adaptive threshold.

```
adaptiveThreshold(image, max_value = 255, method = "mean",
threshold_type = "inverse", block_size = 31, C = 25)
```

image | An an 8-bit (8U) single-channel |
---|---|

max_value | Non-zero numerical value assigned to the pixels above the adaptive threshold (default: 255). |

method | The name of the adaptive thresholding algorithm to use. It can be either 'mean' - mean of the block_size * block_size neighborhood - or 'gaussian' - Gaussian weighted sum of the block_size * block_size neighborhood (default: 'mean'). |

threshold_type | The name of the threshold type to use. It can be either 'binary' or 'inverse' (default: 'inverse'). |

block_size | Size of a pixel neighborhood that is used to calculate a threshold value for the pixel (default: 31). |

C | Constant subtracted from the mean or weighted mean. Normally, it is positive but may be zero or negative as well (default: 25). |

An `Image`

object.

Simon Garnier, garnier@njit.edu

```
# TODO
```