weaver.transform.tiff

Module Contents

weaver.transform.tiff.normalize_band(image_band: numpy.ndarray) → numpy.ndarray[source]

Normalize a single band of an image to the range [0, 1].

Parameters:

image_band – The image band to normalize.

Returns:

The normalized image band.

class weaver.transform.tiff.Tiff(file_path: str)[source]

A class for working with TIFF files, including GeoTIFFs and multi-page TIFFs.

Variables:

  • file_path (str) – The file path to the TIFF image.

  • dataset (rasterio.Dataset) – The rasterio dataset for GeoTIFFs.

  • is_geotiff (bool) – A flag indicating whether the image is a GeoTIFF.

  • images (List[np.ndarray]) – The list of image arrays for multi-page TIFFs.

  • _images (List[np.ndarray]) – A copy of the list of image arrays.

  • nb_bands (int) – The number of bands in the GeoTIFF.

  • width (int) – The width of the image.

  • height (int) – The height of the image.

  • bands (dict) – A dictionary of band indexes and their data types.

  • coordinates (Tuple[Tuple[float, float], Tuple[float, float]]) – The coordinates for the GeoTIFF.

  • crs (rasterio.crs.CRS) – The coordinate reference system for the GeoTIFF.

Initialize the Tiff object with the given file path.

Parameters:

file_path – The file path to the TIFF image.

file_path[source]
dataset[source]
is_geotiff[source]
property range: range[source]

Get the range of valid band indexes for the TIFF file.

Returns:

A range object representing valid band indexes.

get_band(index: int) → numpy.ndarray | None[source]

Retrieve a specific band of the image by index.

Parameters:

index – The band index to retrieve.

Returns:

The band as a NumPy array, or None if not found.

Raises:

RuntimeError – If the band index is invalid or data cannot be read.

get_images(red_band: int = 1, green_band: int = 2, blue_band: int = 3) → List[PIL.Image.Image][source]

Retrieve RGB images by combining bands from a GeoTIFF or multi-page TIFF.

Parameters:

  • red_band – The band index for the red channel.

  • green_band – The band index for the green channel.

  • blue_band – The band index for the blue channel.

Returns:

A list of PIL Image objects representing the RGB image(s).