Convert an image to a feature collection by reducing homogeneous regions. Given an image containing a band of labeled segments and zero or more additional bands, runs a reducer over the pixels in each segment producing a feature per segment.
Either the reducer must have one fewer inputs than the image has bands, or it must have a single input and will be repeated for each band.
Image.reduceToVectors(reducer, geometry, scale, geometryType, eightConnected, labelProperty, crs, crsTransform, bestEffort, maxPixels, tileScale, geometryInNativeProjection)
|Image||The input image. The first band is expected to be an integer type; adjacent pixels will be in the same segment if they have the same value in this band.|
|Reducer, default: null||The reducer to apply. Its inputs will be taken from the image's bands after dropping the first band. Defaults to Reducer.countEvery()|
|Geometry, default: null||The region over which to reduce data. Defaults to the footprint of the image's first band.|
|Float, default: null||A nominal scale in meters of the projection to work in.|
|String, default: "polygon"||How to choose the geometry of each generated feature; one of 'polygon' (a polygon enclosing the pixels in the segment), 'bb' (a rectangle bounding the pixels), or 'centroid' (the centroid of the pixels).|
|Boolean, default: true||If true, diagonally-connected pixels are considered adjacent; otherwise only pixels that share an edge are.|
|String, default: "label"||If non-null, the value of the first band will be saved as the specified property of each feature.|
|Projection, default: null||The projection to work in. If unspecified, the projection of the image's first band is used. If specified in addition to scale, rescaled to the specified scale.|
|List, default: null||The list of CRS transform values. This is a row-major ordering of the 3x2 transform matrix. This option is mutually exclusive with 'scale', and replaces any transform already set on the projection.|
|Boolean, default: false||If the polygon would contain too many pixels at the given scale, compute and use a larger scale which would allow the operation to succeed.|
|Long, default: 10000000||The maximum number of pixels to reduce.|
|Float, default: 1||A scaling factor used to reduce aggregation tile size; using a larger tileScale (e.g. 2 or 4) may enable computations that run out of memory with the default.|
|Boolean, default: false||Create geometries in the pixel projection, rather than WGS84.|