//
// SumPlanes.java
//
import java.awt.image.*;
import loci.formats.*;
import loci.formats.gui.BufferedImageReader;
import loci.formats.gui.BufferedImageWriter;
/**
* Sums together the image planes from the given file,
* and saves the result to a 16-bit TIFF.
*
* <dl><dt><b>Source code:</b></dt>
* <dd><a href="http://trac.openmicroscopy.org.uk/ome/browser/bioformats.git/components/bio-formats/utils/SumPlanes.java">Trac</a>,
* <a href="http://git.openmicroscopy.org/?p=bioformats.git;a=blob;f=components/bio-formats/utils/SumPlanes.java;hb=HEAD">Gitweb</a></dd></dl>
*/
public class SumPlanes {
public static void main(String[] args) throws Exception {
String id = args[0];
BufferedImageReader r = new BufferedImageReader();
System.out.print("Reading " + id);
r.setId(id);
int imageCount = r.getImageCount();
BufferedImage[] images = new BufferedImage[imageCount];
for (int i=0; i<imageCount; i++) {
System.out.print(".");
images[i] = r.openImage(i);
}
r.close();
System.out.println(" [done]");
String outId = id + ".tif";
BufferedImageWriter w = new BufferedImageWriter();
System.out.print("Writing " + outId);
w.setId(outId);
w.saveImage(sum(images), true);
w.close();
System.out.println(" [done]");
}
public static BufferedImage sum(BufferedImage[] images) {
// Assuming that all images have the same dimensions and type
int w = images[0].getWidth();
int h = images[0].getHeight();
//int type = images[0].getType();
BufferedImage result = new BufferedImage(w, h,
BufferedImage.TYPE_USHORT_GRAY); // type == 0 for some reason...
WritableRaster raster = result.getRaster().createCompatibleWritableRaster();
int bands = raster.getNumBands();
for (int y=0; y<h; y++) {
for (int x=0; x<w; x++) {
for (int b=0; b<bands; b++) {
float sum = 0;
for (int i=0; i<images.length; i++) {
sum = sum + images[i].getRaster().getSample(x, y, b);
}
raster.setSample(x, y, b, sum);
}
}
}
result.setData(raster);
return result;
}
}