swectral.roi_median#

swectral.roi_median(image_path, roi_coordinates)[source]#

Computes spectral mean of the provided region of interests (ROI) in the provided image.

Parameters:

image_pathstr

Spectral raster image path.

roi_coordinateslist of list of tuple of 2 (int or float)

Coordinates of the ROI polygons. Structure:

[
    [ (x1, y1), (x2, y2), ..., (xn, yn), (x1, y1) ],  # Polygon 1
    [ (x1, y1), (x2, y2), ..., (xm, ym), (x1, y1) ],  # Polygon 2
    ...
]

Each inner list represents a polygon (for multipart geometries), and each tuple is a vertex coordinate.

Returns:

Return type:

ndarray

Examples

>>> roi_std("/image1.tif", [[(0, 0), (0, 10), (10, 0), (0, 0)]])