Sir,how can i read the QR barcode in Matlab software

how can i read this type of QR code please anyone help me.

Answer 1

[Cris LaPierre]

See the 'Read a QR Code' example on the readbarcode documentation page.

In testing this, it appears the function only works with truecolor or grayscale images, not binary, so that is why I multiplied by 255. Otherwise, the code comes straight from the example I linked to. Since your image is the QR Code, it was not necessary to specify an roi.

Note: this solution requires the Computer Vision toolbox.

I = imread("https://www.mathworks.com/matlabcentral/answers/uploaded_files/1232262/image.png");
I = I*255;
imshow(I)

[msg,~,loc] = readBarcode(I,"QR-CODE")

msg = "QR Code Generator by TEC-IT"

loc = 4×2

77.5000 471.5000 77.5000 77.5000 471.5000 77.5000 406.0000 406.0000

xyText =  loc(2,:);
Imsg = insertText(I,xyText,msg,"BoxOpacity",1,"FontSize",25);

Imsg = insertShape(Imsg, "FilledCircle", [loc, ...
     repmat(10, length(loc), 1)],"Color","red","Opacity",1);

figure
imshow(Imsg)

[Shri.s]

sir,after i try this solution it says Undefined function or variable 'readBarcode'.so now what can i do...

please help me

thanku....

[Shri.s]

Sir,Is this solution applicable for all type QR code....

but after try this solution it will say undefined function of readBarcode....

[Walter Roberson]

You need the Computer Vision Toolbox R2020a or later

[Shri.s]

ok....