replacePixelsIfZero

Replaces pixel values x with y in case x is zero.

This functionality is comparable to ImageJs image calculator operator ‘transparent zero’.

Category: Filter

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

Usage in ImageJ macro

Ext.CLIJ2_replacePixelsIfZero(Image input1, Image input2, Image destination);

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 input1 = clij2.push(input1ImagePlus);
ClearCLBuffer input2 = clij2.push(input2ImagePlus);
destination = clij2.create(input1);

// Execute operation on GPU
clij2.replacePixelsIfZero(input1, input2, destination);

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

// cleanup memory on GPU
clij2.release(input1);
clij2.release(input2);
clij2.release(destination);

Matlab

% init CLIJ and GPU
clij2 = init_clatlab();

% get input parameters
input1 = clij2.pushMat(input1_matrix);
input2 = clij2.pushMat(input2_matrix);
destination = clij2.create(input1);

% Execute operation on GPU
clij2.replacePixelsIfZero(input1, input2, destination);

% show result
destination = clij2.pullMat(destination)

% cleanup memory on GPU
clij2.release(input1);
clij2.release(input2);
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
input1_sequence = getSequence();
input1 = clij2.pushSequence(input1_sequence);
input2_sequence = getSequence();
input2 = clij2.pushSequence(input2_sequence);
destination = clij2.create(input1);

// Execute operation on GPU
clij2.replacePixelsIfZero(input1, input2, destination);

// show result
destination_sequence = clij2.pullSequence(destination)
Icy.addSequence(destination_sequence);
// cleanup memory on GPU
clij2.release(input1);
clij2.release(input2);
clij2.release(destination);

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