package plugins.tutorial.training; import icy.gui.dialog.MessageDialog; import icy.image.IcyBufferedImage; import icy.plugin.abstract_.PluginActionable; public class ModifyImagePlugin1 extends PluginActionable { @Override public void run() { IcyBufferedImage image = getActiveImage(); // check if an image is opened if (image == null) { MessageDialog.showDialog("This plugin needs an opened image."); return; } // retrieve width and height of the image int w = image.getSizeX(); int h = image.getSizeY(); for (int x = 0; x < w; x++) { for (int y = 0; y < h; y++) { // set pixel intensity to half of its original value image.setData(x, y, 0, image.getData(x, y, 0) / 2); } } } }