Description Usage Arguments Value

This function is called by the `glcm`

function. It is
not intended to be used directly.

1 | ```
calc_texture(rast, n_grey, window_dims, shift, statistics, na_opt, na_val)
``` |

`rast` |
a matrix containing the pixels to be used in the texture calculation |

`n_grey` |
number of grey levels to use in texture calculation |

`window_dims` |
2 element list with row and column dimensions of the texture window |

`shift` |
a matrix where each row gives an (x, y) shift to use when computing co-occurrency matrices. Textures will be calculated for each shift, and the average over all shifts will be returned. |

`statistics` |
a list of strings naming the texture statistics to calculate |

`na_opt` |
one of "ignore", "center", or "any" |

`na_val` |
what value to use to fill missing values on edges or where necessary due to chosen na_opt value |

a list of length equal to the length of the `statistics`

input
parameter, containing the selected textures measures

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