extrema

Returns an image with pixel values most distant from 0:

f(x, y) = x if abs(x) > abs(y), y else.

Availability: Available in Fiji by activating the update sites clij and clij2. This function is part of clijx_-0.32.0.1.jar.

Usage in ImageJ macro

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

Usage in object oriented programming languages

Java

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

// get input parameters
ClearCLBuffer input1 = clijx.push(input1ImagePlus);
ClearCLBuffer input2 = clijx.push(input2ImagePlus);
destination = clijx.create(input1);

// Execute operation on GPU
clijx.extrema(input1, input2, destination);

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

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

Matlab

% init CLIJ and GPU
clijx = init_clatlabx();

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

% Execute operation on GPU
clijx.extrema(input1, input2, destination);

% show result
destination = clijx.pullMat(destination)

% cleanup memory on GPU
clijx.release(input1);
clijx.release(input2);
clijx.release(destination);

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