QR Code Specifications

Size of the QR Code is determined by:

1. Length of the data to be encoded
2. Error correction level (L, M, Q, H)
3. Pixels per block
4. Margin (White space around QR code)

Following options can be provided to the user w.r.t the text embedded in the QR code image

1. Text to be embedded
2. Font Name
3. Font Size
4. Text Tracking(To control spacing between characters)

Following options can be provided to the user w.r.t the QR code image

1. Colour model of the image(RGB/CMYK)
2. Border size
3. File format of the QR image

Sample Values:

{
  "qrSpec": {
    "data": "http://www.sunbird.org/dial/2A42UH",
    "errorCorrectionLevel": "H",
    "pixelsPerBlock": 3,
    "margin": 3
  },
  "textSpec": {
    "text": "2A42UH",
    "fontName": "Verdana",
    "fontSize": 12,
    "tracking": -0.1
  },
  "imageSpec": {
    "imageFormat": "png",
    "colourModel": "CMYK",
    "borderSize": 2
  }
}