Howtosignalprocessing
- What is a boundary in Matlab?
- How do you draw a boundary of an image in Matlab?
- How do I find the coordinates of a boundary in Matlab?
- How do you find the area of a polygon in Matlab?
What is a boundary in Matlab?
k = boundary( x , y ) returns a vector of point indices representing a single conforming 2-D boundary around the points (x,y) . The points (x(k),y(k)) form the boundary. Unlike the convex hull, the boundary can shrink towards the interior of the hull to envelop the points.
How do you draw a boundary of an image in Matlab?
Call bwtraceboundary to trace the boundary from the specified point. As required arguments, you must specify a binary image, the row and column coordinates of the starting point, and the direction of the first step. The example specifies north ( 'N' ). boundary = bwtraceboundary(BW,[row, col],'N');
How do I find the coordinates of a boundary in Matlab?
Description. [ x , y ] = boundary( polyin ) returns the x-coordinates and the y-coordinates of each boundary of a polyshape . The vectors x and y contain the list of coordinates for each boundary, delimited by NaN .
How do you find the area of a polygon in Matlab?
Description. a = polyarea( x , y ) returns the area of the 2-D polygon defined by the vertices in vectors x and y . If x and y are vectors of the same length, then polyarea returns the scalar area of the polygon defined by x and y .
