readValuesFromMap

Takes a label image and an parametric image and reads parametric values from the labels positions.

The read intensity valus are stored in a new vector.

Note: This will only work if all labels have number of voxels == 1 or if all pixels in each label have the same value.

Parameters

labels map_image values_destination

Categories: Labels, Measurements, Graphs

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_readValuesFromMap(Image labels, Image map_image, Image values_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 labels = clij2.push(labelsImagePlus);
ClearCLBuffer map_image = clij2.push(map_imageImagePlus);
values_destination = clij2.create(labels);

// Execute operation on GPU
clij2.readValuesFromMap(labels, map_image, values_destination);

// show result
values_destinationImagePlus = clij2.pull(values_destination);
values_destinationImagePlus.show();

// cleanup memory on GPU
clij2.release(labels);
clij2.release(map_image);
clij2.release(values_destination);

Matlab

% init CLIJ and GPU
clij2 = init_clatlab();

% get input parameters
labels = clij2.pushMat(labels_matrix);
map_image = clij2.pushMat(map_image_matrix);
values_destination = clij2.create(labels);

% Execute operation on GPU
clij2.readValuesFromMap(labels, map_image, values_destination);

% show result
values_destination = clij2.pullMat(values_destination)

% cleanup memory on GPU
clij2.release(labels);
clij2.release(map_image);
clij2.release(values_destination);

Icy JavaScript

// init CLIJ and GPU
importClass(net.haesleinhuepf.clicy.CLICY);
importClass(Packages.icy.main.Icy);

clij2 = CLICY.getInstance();

// get input parameters
labels_sequence = getSequence();
labels = clij2.pushSequence(labels_sequence);
map_image_sequence = getSequence();
map_image = clij2.pushSequence(map_image_sequence);
values_destination = clij2.create(labels);

// Execute operation on GPU
clij2.readValuesFromMap(labels, map_image, values_destination);

// show result
values_destination_sequence = clij2.pullSequence(values_destination)
Icy.addSequence(values_destination_sequence);
// cleanup memory on GPU
clij2.release(labels);
clij2.release(map_image);
clij2.release(values_destination);

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