Parent: $root.$constants
| kOIMAGEerrHigh | The QR Code can tolerate about 30% erroneous codewords |
| kOIMAGEerrLow | The QR Code can tolerate about 7% erroneous codewords |
| kOIMAGEerrMedium | The QR Code can tolerate about 15% erroneous codewords |
| kOIMAGEerrQuartile | The QR Code can tolerate about 25% erroneous codewords |
| kOIMAGEfmtPNG | Output the QR Code PNG image |
| kOIMAGEfmtSVG | Output the QR Code SVG document |
| kOIMAGEsamplerBilinear | Use bilinear sampling |
| kOIMAGEsamplerNearestNeighbour | Use nearest neighbour sampling |
| kOIMAGEtransformFlipLeftRight | Flip the image on the left to right axis |
| kOIMAGEtransformFlipTopBottom | Flip the image on the top to bottom axis |
| kOIMAGEtransformRotate180 | Rotate the image 180 degrees |
| kOIMAGEtransformRotate270 | Rotate the image 270 degrees clockwise |
| kOIMAGEtransformRotate90 | Rotate the image 90 degrees clockwise |
| kOIMAGEtransformTranspose | Transpose the image |