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authorWim <wim@42.be>2022-01-31 00:27:37 +0100
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-# go-qrcode #
-
-<img src='https://skip.org/img/nyancat-youtube-qr.png' align='right'>
-
-Package qrcode implements a QR Code encoder. [![Build Status](https://travis-ci.org/skip2/go-qrcode.svg?branch=master)](https://travis-ci.org/skip2/go-qrcode)
-
-A QR Code is a matrix (two-dimensional) barcode. Arbitrary content may be encoded, with URLs being a popular choice :)
-
-Each QR Code contains error recovery information to aid reading damaged or obscured codes. There are four levels of error recovery: Low, medium, high and highest. QR Codes with a higher recovery level are more robust to damage, at the cost of being physically larger.
-
-## Install
-
- go get -u github.com/skip2/go-qrcode/...
-
-A command-line tool `qrcode` will be built into `$GOPATH/bin/`.
-
-## Usage
-
- import qrcode "github.com/skip2/go-qrcode"
-
-- **Create a 256x256 PNG image:**
-
- var png []byte
- png, err := qrcode.Encode("https://example.org", qrcode.Medium, 256)
-
-- **Create a 256x256 PNG image and write to a file:**
-
- err := qrcode.WriteFile("https://example.org", qrcode.Medium, 256, "qr.png")
-
-- **Create a 256x256 PNG image with custom colors and write to file:**
-
- err := qrcode.WriteColorFile("https://example.org", qrcode.Medium, 256, color.Black, color.White, "qr.png")
-
-All examples use the qrcode.Medium error Recovery Level and create a fixed 256x256px size QR Code. The last function creates a white on black instead of black on white QR Code.
-
-## Documentation
-
-[![godoc](https://godoc.org/github.com/skip2/go-qrcode?status.png)](https://godoc.org/github.com/skip2/go-qrcode)
-
-## Demoapp
-
-[http://go-qrcode.appspot.com](http://go-qrcode.appspot.com)
-
-## CLI
-
-A command-line tool `qrcode` will be built into `$GOPATH/bin/`.
-
-```
-qrcode -- QR Code encoder in Go
-https://github.com/skip2/go-qrcode
-
-Flags:
- -d disable QR Code border
- -i invert black and white
- -o string
- out PNG file prefix, empty for stdout
- -s int
- image size (pixel) (default 256)
- -t print as text-art on stdout
-
-Usage:
- 1. Arguments except for flags are joined by " " and used to generate QR code.
- Default output is STDOUT, pipe to imagemagick command "display" to display
- on any X server.
-
- qrcode hello word | display
-
- 2. Save to file if "display" not available:
-
- qrcode "homepage: https://github.com/skip2/go-qrcode" > out.png
-
-```
-## Maximum capacity
-The maximum capacity of a QR Code varies according to the content encoded and the error recovery level. The maximum capacity is 2,953 bytes, 4,296 alphanumeric characters, 7,089 numeric digits, or a combination of these.
-
-## Borderless QR Codes
-
-To aid QR Code reading software, QR codes have a built in whitespace border.
-
-If you know what you're doing, and don't want a border, see https://gist.github.com/skip2/7e3d8a82f5317df9be437f8ec8ec0b7d for how to do it. It's still recommended you include a border manually.
-
-## Links
-
-- [http://en.wikipedia.org/wiki/QR_code](http://en.wikipedia.org/wiki/QR_code)
-- [ISO/IEC 18004:2006](http://www.iso.org/iso/catalogue_detail.htm?csnumber=43655) - Main QR Code specification (approx CHF 198,00)<br>
-- [https://github.com/qpliu/qrencode-go/](https://github.com/qpliu/qrencode-go/) - alternative Go QR encoding library based on [ZXing](https://github.com/zxing/zxing)