setWhereXgreaterThanY

Sets all pixel values a of a given image A to a constant value v in case its coordinates x > y.

Otherwise the pixel is not overwritten. If you want to initialize an identity transfrom matrix, set all pixels to 0 first.

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.

Usage in ImageJ macro

Ext.CLIJ2_setWhereXgreaterThanY(Image source, Number value);

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);
float value = 1.0;

// Execute operation on GPU
clij2.setWhereXgreaterThanY(source, value);

// show result

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

Matlab

% init CLIJ and GPU
clij2 = init_clatlab();

% get input parameters
source = clij2.pushMat(source_matrix);
value = 1.0;

% Execute operation on GPU
clij2.setWhereXgreaterThanY(source, value);

% show result

% 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);
value = 1.0;

// Execute operation on GPU
clij2.setWhereXgreaterThanY(source, value);

// show result

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

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