// CLIJ example macro: project3D.ijm

//

// This macro shows how to rotate an image in the GPU.

//

// Author: Robert Haase

// January 2019

// ---------------------------------------------

run("Close All");

// Get test data

run("Blobs (25K)");

//open("C:/structure/data/blobs.gif");

zoom_step = 0.03;

run("32-bit");

rename("original");

getDimensions(width, height, channels, depth, frames);

// init GPU

run("CLIJ Macro Extensions", "cl_device=");

Ext.CLIJ_clear();

// push images to GPU

Ext.CLIJ_push("original");

// reserve the right amount of memory for the result image

Ext.CLIJ_create3D("target", width, height, 1.0 / zoom_step, 32);

// cleanup imagej

run("Close All");

count = 0;

for (zoom = 1; zoom > 0; zoom -= zoom_step) {

Ext.CLIJ_scale2D("original", "zoomed", zoom, true);

// put the zoomed image in the right place in the result stack

Ext.CLIJ_copySlice("zoomed", "target", count);

count++;

}

// show result

Ext.CLIJ_pull("target");

run("Invert LUT");