private void Init()
{
InitializeComponent();
qrCodeOps = new QRCodeOperations();
outputImages = new Dictionary <string, BitmapSource>();
outputMessages = new Dictionary <string, string>();
cellSize = int.Parse(comboBoxCellSize.SelectionBoxItem.ToString());
isColored = checkBoxColor.IsChecked.Value ? true : false;
isECC = checkBoxECC.IsChecked.Value ? true : false;
// DIvisors of 400: 1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400
qrCodeProps = new QRCodeProperties(400, 400, cellSize);
qrColorMode = new QRColorMode();
if (isColored == true)
{
qrColorMode = QRColorMode.Color;
}
else
{
qrColorMode = QRColorMode.Grayscale;
}
}
private void CalculateSearchPoint(QRCodeProperties qrCodeProps)
{
// Add center pixel of cell to search points (for image decoding). Could optimise
for (int y = 0; y < qrCodeProps.CellsPerDim * qrCodeProps.CellSize; y += qrCodeProps.CellSize)
{
for (int x = 0; x < qrCodeProps.CellsPerDim * qrCodeProps.CellSize; x += qrCodeProps.CellSize)
{
matSearchPixels.Add(new Point(x + (qrCodeProps.CellSize / 2), y + (qrCodeProps.CellSize / 2)));
}
}
}
private void ComboBoxCellSize_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (comboBoxCellSize.Text != "")
{
cellSize = int.Parse((comboBoxCellSize.Items[comboBoxCellSize.SelectedIndex] as ComboBoxItem).Content.ToString());
}
if (cellSize > 0)
{
qrCodeProps = new QRCodeProperties(400, 400, cellSize);
InputTextChangeEventHandler();
}
}
MatIndexer <Vec3b> WriteColorComponent(string message, QRCodeProperties qrCodeProps, MatIndexer <Vec3b> indexerComponent, Vec3b color)
{
int stringIndex = -1;
for (int y = 0; y < qrCodeProps.CellsPerDim * qrCodeProps.CellSize; y += qrCodeProps.CellSize)
{
for (int x = 0; x < qrCodeProps.CellsPerDim * qrCodeProps.CellSize; x += qrCodeProps.CellSize)
{
// If message is done reading
if (++stringIndex + 1 > message.Length)
{
break;
}
// If bit is 0, skip this cell
if (message[stringIndex].Equals('0'))
{
continue;
}
// If bit is 1, color the cell
else if (message[stringIndex].Equals('1'))
{
for (int i = y; i < y + qrCodeProps.CellSize; i++)
{
for (int j = x; j < x + qrCodeProps.CellSize; j++)
{
indexerComponent[i, j] = color;
}
}
}
}
}
return(indexerComponent);
}
public Dictionary <string, BitmapSource> GenerateQRCore(string inputMessage, QRCodeProperties qrCodeProps, QRColorMode colorMode)
{
outputImages = new Dictionary <string, BitmapSource>();
outputMats = new Dictionary <string, Mat>();
matSearchPixels = new List <Point>();
this.inputMessage = inputMessage;
CalculateSearchPoint(qrCodeProps);
if (colorMode == QRColorMode.Grayscale)
{
// Generate empty mat and set all pixels to white
qrMatMono = Mat.Zeros(new Size(qrCodeProps.ImgSize.Width, qrCodeProps.ImgSize.Height), MatType.CV_8UC1);
//qrMat.SetTo(Scalar.White);
// Get mat indexer
MatOfByte mob1 = new MatOfByte(qrMatMono);
MatIndexer <byte> indexerByte = mob1.GetIndexer();
int stringIndex = -1;
for (int y = 0; y < qrCodeProps.CellsPerDim * qrCodeProps.CellSize; y += qrCodeProps.CellSize)
{
for (int x = 0; x < qrCodeProps.CellsPerDim * qrCodeProps.CellSize; x += qrCodeProps.CellSize)
{
// If message is done reading
if (++stringIndex + 1 > inputMessage.Length)
{
break;
}
// If bit is 0, skip this cell
if (inputMessage[stringIndex].Equals('0'))
{
continue;
}
// If bit is 1, color the cell
else if (inputMessage[stringIndex].Equals('1'))
{
for (int i = y; i < y + qrCodeProps.CellSize; i++)
{
for (int j = x; j < x + qrCodeProps.CellSize; j++)
{
indexerByte[i, j] = LUM_INTENSITY_MAX;
}
}
}
}
}
// Add image and mat to output lists
outputImages.Add(QR_TYPE_MONOCHROME, Utils.MatToImage(qrMatMono));
outputMats.Add(QR_TYPE_MONOCHROME, qrMatMono);
// Return images to UI
return(outputImages);
}
else if (colorMode == QRColorMode.Color)
{
// Generate empty mats and fill with white
Mat qrRedMat = Mat.Zeros(new Size(qrCodeProps.ImgSize.Width, qrCodeProps.ImgSize.Height), MatType.CV_8UC3);
Mat qrGreenMat = Mat.Zeros(new Size(qrCodeProps.ImgSize.Width, qrCodeProps.ImgSize.Height), MatType.CV_8UC3);
Mat qrBlueMat = Mat.Zeros(new Size(qrCodeProps.ImgSize.Width, qrCodeProps.ImgSize.Height), MatType.CV_8UC3);
//qrCyanMat.SetTo(Scalar.White);
//qrMagentaMat.SetTo(Scalar.White);
//qrYellowMat.SetTo(Scalar.White);
// Get mat indexers
MatOfByte3 mobRed = new MatOfByte3(qrRedMat);
MatOfByte3 mobGreen = new MatOfByte3(qrGreenMat);
MatOfByte3 mobBlue = new MatOfByte3(qrBlueMat);
MatIndexer <Vec3b> indexerMobRed = mobRed.GetIndexer();
MatIndexer <Vec3b> indexerMobGreen = mobGreen.GetIndexer();
MatIndexer <Vec3b> indexerMobBlue = mobBlue.GetIndexer();
// Split message thrice
int bitsPerChar = 7;
int messageChars = inputMessage.Length / bitsPerChar;
string messageForRed = string.Empty;
string messageForGreen = string.Empty;
string messageForBlue = string.Empty;
for (int i = 0; i < messageChars; i++)
{
if (i % 3 == 0)
{
for (int j = 0; j < bitsPerChar; j++)
{
messageForRed += inputMessage[(i * bitsPerChar) + j];
}
}
else if (i % 3 == 1)
{
for (int j = 0; j < bitsPerChar; j++)
{
messageForGreen += inputMessage[(i * bitsPerChar) + j];
}
}
else if (i % 3 == 2)
{
for (int j = 0; j < bitsPerChar; j++)
{
messageForBlue += inputMessage[(i * bitsPerChar) + j];
}
}
}
indexerMobRed = WriteColorComponent(messageForRed, qrCodeProps, indexerMobRed, COLOR_RED);
indexerMobGreen = WriteColorComponent(messageForGreen, qrCodeProps, indexerMobGreen, COLOR_GREEN);
indexerMobBlue = WriteColorComponent(messageForBlue, qrCodeProps, indexerMobBlue, COLOR_BLUE);
Mat combinedMat = qrRedMat + qrGreenMat + qrBlueMat;
// Add image and mats to output lists
outputImages.Add(QR_TYPE_COMBINED, Utils.MatToImage(combinedMat));
outputImages.Add(QR_TYPE_RED, Utils.MatToImage(qrRedMat));
outputImages.Add(QR_TYPE_GREEN, Utils.MatToImage(qrGreenMat));
outputImages.Add(QR_TYPE_BLUE, Utils.MatToImage(qrBlueMat));
outputMats.Add(QR_TYPE_COMBINED, combinedMat);
outputMats.Add(QR_TYPE_RED, qrRedMat);
outputMats.Add(QR_TYPE_GREEN, qrGreenMat);
outputMats.Add(QR_TYPE_BLUE, qrBlueMat);
return(outputImages);
}
return(null);
}
public Dictionary <string, string> DecodeQRCode(QRCodeProperties qrCodeProps, QRColorMode colorMode)
{
outputMessages = new Dictionary <string, string>();
if (colorMode == QRColorMode.Grayscale)
{
string decodedBinary = string.Empty;
outputMats.TryGetValue(QR_TYPE_MONOCHROME, out Mat qrMatMono);
// Get mat indexer
MatOfByte mob1 = new MatOfByte(qrMatMono);
MatIndexer <byte> indexerByte = mob1.GetIndexer();
// Read decoded strings
int bitsPerChar = 7;
int messageLength = inputMessage.Length;
decimal messageChars = messageLength / bitsPerChar;
// Read decoded binary
for (int i = 0; i < messageChars; i++)
{
decodedBinary += ReadMonochromePixels(indexerByte, i, bitsPerChar);
}
// Add decoded messag to output list
outputMessages.Add(QR_TYPE_MONOCHROME, decodedBinary);
return(outputMessages);
}
else if (colorMode == QRColorMode.Color)
{
string decodedBinaryRed = string.Empty;
string decodedBinaryGreen = string.Empty;
string decodedBinaryBlue = string.Empty;
string decodedBinaryCombined = string.Empty;
outputMats.TryGetValue(QR_TYPE_COMBINED, out Mat qrMatCombined);
// Get mat indexer
MatOfByte3 mobComb = new MatOfByte3(qrMatCombined);
MatIndexer <Vec3b> indexerMobComb = mobComb.GetIndexer();
// Read decoded strings
int bitsPerChar = 7;
int messageLength = inputMessage.Length;
decimal messageChars = messageLength / bitsPerChar;
int coloredMessageLength = (int)Math.Ceiling(messageChars / 3);
for (int i = 0; i < coloredMessageLength; i++)
{
string tempRed = ReadColorPixels(indexerMobComb, QR_TYPE_RED, i, bitsPerChar);
string tempGreen = ReadColorPixels(indexerMobComb, QR_TYPE_GREEN, i, bitsPerChar);
string tempBlue = ReadColorPixels(indexerMobComb, QR_TYPE_BLUE, i, bitsPerChar);
decodedBinaryRed += tempRed;
decodedBinaryGreen += tempGreen;
decodedBinaryBlue += tempBlue;
decodedBinaryCombined += tempRed;
decodedBinaryCombined += tempGreen;
decodedBinaryCombined += tempBlue;
}
// Add output messages
outputMessages.Add(QR_TYPE_RED, decodedBinaryRed);
outputMessages.Add(QR_TYPE_GREEN, decodedBinaryGreen);
outputMessages.Add(QR_TYPE_BLUE, decodedBinaryBlue);
outputMessages.Add(QR_TYPE_COMBINED, decodedBinaryCombined);
return(outputMessages);
}
return(null);
}
