ee.Kernel.chebyshev

Generates a distance kernel based on Chebyshev distance (greatest distance along any dimension).

Usage	Returns
ee.Kernel.chebyshev(radius, units, normalize, magnitude)	Kernel

Argument	Type	Details
radius	Float	The radius of the kernel to generate.
units	String, default: "pixels"	The system of measurement for the kernel ('pixels' or 'meters'). If the kernel is specified in meters, it will resize when the zoom-level is changed.
normalize	Boolean, default: false	Normalize the kernel values to sum to 1.
magnitude	Float, default: 1	Scale each value by this amount.

Examples

Code Editor (JavaScript)

print('A Chebyshev distance kernel', ee.Kernel.chebyshev({radius: 3}));

/**
 * Output weights matrix
 *
 * [3, 3, 3, 3, 3, 3, 3]
 * [3, 2, 2, 2, 2, 2, 3]
 * [3, 2, 1, 1, 1, 2, 3]
 * [3, 2, 1, 0, 1, 2, 3]
 * [3, 2, 1, 1, 1, 2, 3]
 * [3, 2, 2, 2, 2, 2, 3]
 * [3, 3, 3, 3, 3, 3, 3]
 */

Python setup

See the Python Environment page for information on the Python API and using geemap for interactive development.

import ee
import geemap.core as geemap

Colab (Python)

from pprint import pprint

print('A Chebyshev distance kernel:')
pprint(ee.Kernel.chebyshev(**{'radius': 3}).getInfo())

#  Output weights matrix
#  [3, 3, 3, 3, 3, 3, 3]
#  [3, 2, 2, 2, 2, 2, 3]
#  [3, 2, 1, 1, 1, 2, 3]
#  [3, 2, 1, 0, 1, 2, 3]
#  [3, 2, 1, 1, 1, 2, 3]
#  [3, 2, 2, 2, 2, 2, 3]
#  [3, 3, 3, 3, 3, 3, 3]