Description Usage Arguments Details Value See Also Examples

Rescaling a raster changes the raster's resolution.

1 |

`obj` |
[ |

`factor` |
[ |

`kernelFunction` |
[ |

The factor is a value by which the number of cells in x and y
dimension will be multiplied. If the raster should be up-scaled
(`factor > 1`

), only integer values are allowed (will be truncated if
it is not an integer). If the raster should be down-scaled (```
factor <
1
```

) any inverse of an integer value (1/n) is allowed (denominator will be
rounded to the next integer, such as 1/2 or 1/5).

The `kernelFunction`

used here deviates from the other
(morpholological) kernels in that it is a function, which interpolates the
values of new cells. See `kernelFunction`

for an
in-depth description.

A `RasterLayer`

with a dimension that has been up or down-scaled
from `obj`

, where the new values have been determined by applying
`kernelFunction`

.

Other operators to modify a raster: `rBlend`

,
`rReduce`

, `rSegregate`

1 2 3 4 5 6 7 8 9 10 | ```
input <- rtRasters$continuous
visualise(input)
visualise(rRescale(input, factor = 0.5))
# up-scaling can be useful for follow-up morphological operations
binarised <- rBinarise(input, thresh = 30)
visualise(rSkeletonise(binarised))
rescaled <- rRescale(binarised, factor = 2)
visualise(rSkeletonise(rescaled), new = TRUE)
``` |

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