Generates a 3x3 Sobel edge-detection kernel.
| Usage | Returns | ee.Kernel.sobel(magnitude, normalize) | Kernel |
| Argument | Type | Details | magnitude | Float, default: 1 | Scale each value by this amount. |
normalize | Boolean, default: false | Normalize the kernel values to sum to 1. |
Examples
Code Editor (JavaScript)
print('A Sobel kernel', ee.Kernel.sobel());
/**
* Output weights matrix
*
* [-1, 0, 1]
* [-2, 0, 2]
* [-1, 0, 1]
*/
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 Sobel kernel:')
pprint(ee.Kernel.sobel().getInfo())
# Output weights matrix
# [-1, 0, 1]
# [-2, 0, 2]
# [-1, 0, 1]