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generateDistanceMatrixAlongAxis

Computes the distance in X, Y or Z (specified with parameter axis) between all point coordinates given in two point lists.

Takes two images containing pointlists (dimensionality n * d, n: number of points and d: dimensionality) and builds up a matrix containing the distances between these points.

Convention: Given two point lists with dimensionality n * d and m * d, the distance matrix will be of size(n + 1) * (m + 1). The first row and column contain zeros. They represent the distance of the objects to a theoretical background object. In that way, distance matrices are of the same size as touch matrices (see generateTouchMatrix). Thus, one can threshold a distance matrix to generate a touch matrix out of it for drawing meshes.

Categories: Graphs, Measurements

Availability: Available in Fiji by activating the update sites clij and clij2. This function is part of clijx_-0.30.1.22.jar.

Usage in ImageJ macro

Ext.CLIJx_generateDistanceMatrixAlongAxis(Image coordinate_list1, Image coordinate_list2, Image distance_matrix_destination);

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