centerOfMass

Determines the center of mass of an image or image stack.

It writes the result in the results table in the columns MassX, MassY and MassZ.

Availability: Available in Fiji by activating the update sites clij and clij2. This function is part of clij2_-2.5.0.1.jar.

centerOfMass often follows after

threshold (2)

Usage in ImageJ macro

Ext.CLIJ2_centerOfMass(Image source);

Usage in object oriented programming languages

Java

// init CLIJ and GPU
import net.haesleinhuepf.clij2.CLIJ2;
import net.haesleinhuepf.clij.clearcl.ClearCLBuffer;
CLIJ2 clij2 = CLIJ2.getInstance();

// get input parameters
ClearCLBuffer source = clij2.push(sourceImagePlus);

// Execute operation on GPU
double[] resultCenterOfMass = clij2.centerOfMass(source);

// show result
System.out.println(resultCenterOfMass);

// cleanup memory on GPU
clij2.release(source);

Matlab

% init CLIJ and GPU
clij2 = init_clatlab();

% get input parameters
source = clij2.pushMat(source_matrix);

% Execute operation on GPU
double[] resultCenterOfMass = clij2.centerOfMass(source);

% show result
System.out.println(resultCenterOfMass);

% cleanup memory on GPU
clij2.release(source);

Icy JavaScript

// init CLIJ and GPU
importClass(net.haesleinhuepf.clicy.CLICY);
importClass(Packages.icy.main.Icy);

clij2 = CLICY.getInstance();

// get input parameters
source_sequence = getSequence();
source = clij2.pushSequence(source_sequence);

// Execute operation on GPU
double[] resultCenterOfMass = clij2.centerOfMass(source);

// show result
System.out.println(resultCenterOfMass);

// cleanup memory on GPU
clij2.release(source);

clEsperanto Python (experimental)

import pyclesperanto_prototype as cle

cle.center_of_mass(source)

Example scripts

motionCorrection.ijm
motionCorrection_compare_stackreg.ijm

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