QRCODE LARAVEL is blurry

Question

I created a QRCODE size is 80 why logo inside QRcode and QRcode is blurry how do I fix it? I want to QRcode and img in the logo isn't blurry.

this is my code.

 QrCode::format('png')->merge(public_path('img/test.jpg'), 0.5, true)
        ->size(80) 
        ->errorCorrection('H') 
        ->backgroundColor(0, 0, 0) 
        ->color(231,195,111)
        ->generate('test'));

this is the solution.