CLIJ2

Logo

GPU accelerated image processing for everyone

CLIJ2 home

extendedDepthOfFocusVarianceProjection

Extended depth of focus projection maximizing local pixel intensity variance.

The sigma parameter allows controlling an Gaussian blur which should smooth the altitude map.

Category: Projections

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_extendedDepthOfFocusVarianceProjection(Image source, Image destination, Number radius_x, Number radius_y, Number sigma);

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);
int radius_x = 10;
int radius_y = 20;
float sigma = 1.0;
// Execute operation on GPU
clij2.extendedDepthOfFocusVarianceProjection(source, destination, radius_x, radius_y, sigma);
// 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);
radius_x = 10;
radius_y = 20;
sigma = 1.0;
% Execute operation on GPU
clij2.extendedDepthOfFocusVarianceProjection(source, destination, radius_x, radius_y, sigma);
% 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);
radius_x = 10;
radius_y = 20;
sigma = 1.0;
// Execute operation on GPU
clij2.extendedDepthOfFocusVarianceProjection(source, destination, radius_x, radius_y, sigma);
// show result
destination_sequence = clij2.pullSequence(destination)
Icy.addSequence(destination_sequence);
// cleanup memory on GPU
clij2.release(source);
clij2.release(destination);

Back to CLIJ2 reference Back to CLIJ2 documentation

Imprint