rings_segmentation {rcaiman}

Do rings segmentation

Description

Segment an hemispherical view by slicing the zenith angle from zero to 90º in equals intervals.

Usage

rings_segmentation(z, angle_width, return_angle = FALSE)

Arguments

z

SpatRaster built with zenith_image().

angle_width

Numeric vector of length one. Angle in degrees able to divide the angle range into a whole number of segments.

return_angle

Logical vector of length one. If it is FALSE, all the pixels that belong to a segment are labeled with an ID number. Otherwise, the angle mean of the segment is assigned to the pixels.

Value

An object from the class SpatRaster with segments shaped like concentric rings.

See Also

Other Segmentation Functions: chessboard(), mask_hs(), mask_sunlit_canopy(), polar_qtree(), qtree(), sectors_segmentation(), sky_grid_segmentation()

Examples

z <- zenith_image(600, lens())
rings <- rings_segmentation(z, 15)
plot(rings == 1)