Example Render Micro QR Code

• 

  The Micro QR Code which is rendered in this example.

This example shows how a Micro QR Codes can be rendered into an image. Its easy to adapt the approach here for just about any file format, e.g. PDF.

Example Code:

• ExampleRenderMicroQrCode.java

Concepts:

• Fiducials
• Micro QR Codes

Relevant Examples/Tutorials:

• Tutorial QR Codes
• Detecting Micro QR Codes

Example Code

/**
 * A simple API is provided for creating your own Micro QR Code. Used extensively in BoofCV for testing purposes.
 * It's also easy to extending the rendering tools to support other file formats.
 *
 * @author Peter Abeles
 * @see boofcv.alg.fiducial.microqr.MicroQrCodeGenerator
 */
public class ExampleRenderMicroQrCode {
	public static void main( String[] args ) {
		// Uses a flow pattern to specify the QR Code. You can control all aspects of the Micro QR
		// like specifying the version, mask, and message types or let it select all of that for you.
		MicroQrCode qr = new MicroQrCodeEncoder().
				setError(MicroQrCode.ErrorLevel.L).
				addAutomatic("Test ん鞠").fixate();
		// NOTE: The final function you call must be fixate(), that's how it knows it's done

		// FiducialImageEngine is an interface for rending to images. You can also render to PDF and other formats.
		var render = new FiducialImageEngine();
		render.configure(/* border */ 10, /* width */ 500);

		// Render the marker after configuring the generator
		new MicroQrCodeGenerator().setMarkerWidth(500).setRender(render).render(qr);

		// Convert it to a BufferedImage for display purposes
		BufferedImage image = ConvertBufferedImage.convertTo(render.getGray(), null);

		// You can also save it to disk by uncommenting the line below
//		UtilImageIO.saveImage(image, "microqr.png");

		// Display the image
		ShowImages.showWindow(image, "Rendered Micro QR Code", true);
	}
}