Barcodes you can use backgrounds with.

[NigelThorne]

Summary

Generate barcodes that can have background images and custom retackle images in the corners.

Test plan

Try it out. :)

Closing issues
closes #294

[NigelThorne]

ok .. this may be good enough.. tell me what you think .

[NigelThorne]

We could put back support for the 'overlay image' aswell. I took it out for now.
Also.. we could use the light color as a wash to put over the image... so people can control how much the image gets faded by to allow the black dots to get more contrast.

[codebude]

Hi @NigelThorne thanks for your work and the pull request. I'll review within the next days. One thing I already have in mind: Would you mind, if I rename it from "LogoQRCode" to "ArtQRCode"? Background: I think "Logo" may a bit misleading, because users can already place logos on other QRCode rendering classes. Art (or Artistic) would better describe the type of rendering in my opinion.

[NigelThorne]

sounds good.
I'd like to re-add the logo behaviour on top of the art qr code.

[NigelThorne]

I've fixed the behaviour so the pixels get cropped to the module square size. This has the side effect that if you set the pixel size large enough you get a standard barcode.

[AlexandreZaytsev]

NigelThorne

Hi!
I'm a beginner in C#, want to try your ArtQRCode.cs please tell me how to use it correctly in a demo project (QRCoder/QRCoderDemo/RenderQrCode())(https://github.com/codebude/QRCoder/tree/91839cfe9c445832a61a993893eccfab9e264ee8/QRCoder)?

       private void RenderQrCode()
        {
            string level = comboBoxECC.SelectedItem.ToString();
            QRCodeGenerator.ECCLevel eccLevel = (QRCodeGenerator.ECCLevel)(level == "L" ? 0 : level == "M" ? 1 : level == "Q" ? 2 : 3);
            using (QRCodeGenerator qrGenerator = new QRCodeGenerator())
            using (QRCodeData qrCodeData = qrGenerator.CreateQrCode(textBoxQRCode.Text, eccLevel))

//            using (QRCode qrCode = new QRCode(qrCodeData))
            using (ArtQRCode qrCode = new ArtQRCode(qrCodeData))
            {

//                pictureBoxQRCode.BackgroundImage = qrCode.GetGraphic(20, GetPrimaryColor(), GetBackgroundColor(), GetIconBitmap(), (int)iconSize.Value);
//                pictureBoxQRCode.BackgroundImage = qrCode.GetGraphic(new Bitmap(@"https://i09.fotocdn.net/s110/5ed7884c923c4603/user_l/2448758582.jpg", true));
                  pictureBoxQRCode.BackgroundImage = qrCode.GetGraphic(new Bitmap(@"D:\2448758582.jpg", true));

                this.pictureBoxQRCode.Size = new System.Drawing.Size(pictureBoxQRCode.Width, pictureBoxQRCode.Height);
                //Set the SizeMode to center the image.
                this.pictureBoxQRCode.SizeMode = PictureBoxSizeMode.CenterImage;

                pictureBoxQRCode.SizeMode = PictureBoxSizeMode.StretchImage;
            }

?
but the image is created by squares not dots
tell me - how to do it correctly?
thank you

[AlexandreZaytsev]

stop! everything is ok )) (I used the wrong constructor)
but large squares without tails like you have in the picture ))

[NigelThorne]

@AlexandreZaytsev You can pass custom images to use as the corners. They have to be something that would scan though.. :) so they need to have the same 'ring' type structure with the right thickness of black and white. Google use this

[NigelThorne]

@codebude Any plans to merge this :)

[NigelThorne]

@AlexandreZaytsev If you make the background transparent you can put the background in with a paint package. This lets you cheat and remove dots where faces are etc and still get something that scans (due to the error correcting nature of qr)