How can I use ImageJ as a library for a separate Java application?

Question

In a regular Java application, I have a BufferedImage that I would like to manipulate with ImageJ. I have a macro that is exactly what I need to execute. I suspect that the firs

Answer 1

Here is a sample code that opens an image, inverts it and saves it back:

import ij.ImagePlus;
import ij.io.FileSaver;
import ij.process.ImageProcessor;

ImagePlus imgPlus = new ImagePlus("path-to-sample.jpg");
ImageProcessor imgProcessor = imgPlus.getProcessor();
imgProcessor.invert();
FileSaver fs = new FileSaver(imgPlus);
fs.saveAsJpeg("path-to-inverted.jpg");

And here's a sample code that shows how to manipulate an image to make it grayscale:

BufferedImage bufferedImage = imgProcessor.getBufferedImage();
for(int y=0;y

I hope it helps you get started :)