ImageSlicing for puzzle

ImageSlicer.java

public class ImageSlicer {
    public static void main(String[] args) throws IOException {
        if (args.length < 3) {
            System.out.println("Usage: java -jar imageSlicer.jar /path/to/image.jpg <number-of-pieces-wide> <number-of-pieces-high>");
            System.out.println("Usage: java -jar imageSlicer.jar /home/georgi/Desktop/sarah.jpg 4 4");
            return;
        }
        Path imagePath = Paths.get(args[0]);
        int piecesWide = Integer.parseInt(args[1]);
        int piecesHigh = Integer.parseInt(args[2]);

        BufferedImage bufferedImage = ImageIO.read(imagePath.toFile());
        int pieceWidth = (int) (bufferedImage.getWidth() / (float) piecesWide);
        int pieceHeight = (int) (bufferedImage.getHeight() / (float) piecesHigh);

        for (int y = 0; y < piecesHigh; y++) {
            for (int x = 0; x < piecesWide; x++) {
                BufferedImage region = bufferedImage.getSubimage(x * pieceWidth, y * pieceHeight, pieceWidth, pieceHeight);
                ImageIO.write(region, "jpg", new File(Paths.get(".").toAbsolutePath().toFile(), "a" + (y * piecesWide + x) + ".jpg"));
            }
        }

    }
}