equalConstant

Determines if an image A and a constant b are equal.

f(a, b) = 1 if a == b; 0 otherwise.

Parameters

source : Image The image where every pixel is compared to the constant. destination : Image The resulting binary image where pixels will be 1 only if source1 and source2 equal in the given pixel. constant : float The constant where every pixel is compared to.

Category: Math

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

equalConstant often follows after

sumYProjection (1)
getMaximumOfAllPixels (1)

equalConstant is often followed by

maximum3DSphere (1)
multiplyImages (1)

Usage in ImageJ macro

Ext.CLIJ2_equalConstant(Image source, Image destination, Number constant);

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);
destination = clij2.create(source);
float constant = 1.0;

// Execute operation on GPU
clij2.equalConstant(source, destination, constant);

// show result
destinationImagePlus = clij2.pull(destination);
destinationImagePlus.show();

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

Matlab

% init CLIJ and GPU
clij2 = init_clatlab();

% get input parameters
source = clij2.pushMat(source_matrix);
destination = clij2.create(source);
constant = 1.0;

% Execute operation on GPU
clij2.equalConstant(source, destination, constant);

% show result
destination = clij2.pullMat(destination)

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

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);
destination = clij2.create(source);
constant = 1.0;

// Execute operation on GPU
clij2.equalConstant(source, destination, constant);

// show result
destination_sequence = clij2.pullSequence(destination)
Icy.addSequence(destination_sequence);
// cleanup memory on GPU
clij2.release(source);
clij2.release(destination);

clEsperanto Python (experimental)

import pyclesperanto_prototype as cle

cle.equal_constant(source, destination, constant)

Example notebooks

image_types

Example scripts

image_types.ijm

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