Announcement: All noncommercial projects registered to use Earth Engine before April 15, 2025 must verify noncommercial eligibility to maintain Earth Engine access.
Stay organized with collections
Save and categorize content based on your preferences.
Computes the spectral/spatial dilation of an image by computing the spectral distance of each pixel under a structuring kernel from the centroid of all pixels under the kernel and taking the most distant result. See 'Spatial/spectral endmember extraction by multidimensional morphological operations.' IEEE transactions on geoscience and remote sensing 40.9 (2002): 2025-2041.
The spectral distance metric to use. One of 'sam' (spectral angle mapper), 'sid' (spectral information divergence), 'sed' (squared Euclidean distance), or 'emd' (earth movers distance).
kernel
Kernel, default: null
Connectedness kernel. Defaults to a square of radius 1 (8-way connected).
useCentroid
Boolean, default: false
If true, distances are computed from the mean of all pixels under the kernel instead of the kernel's center pixel.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-07-13 UTC."],[[["Computes the spectral/spatial dilation of an image based on the spectral distance of pixels within a kernel."],["Uses a specified spectral distance metric (SAM, SID, SED, or EMD) to calculate distances."],["Offers options to define the kernel shape and whether to use the centroid or center pixel for distance calculations."],["Outputs an image representing the spectral dilation result."]]],[]]