public OcrConfiguration this[string configName]
{
get
{
OcrConfiguration rv = Configurations.SingleOrDefault(x => x.Name == configName);
if (rv == null)
rv = new OcrConfiguration(true);
return rv;
}
}
public string Initialize(OcrConfiguration ocrConfig, int imageWidth, int imageHeight)
{
string initMsg = NativeHelpers.SetupBasicOcrMetrix(ocrConfig);
if (initMsg == null)
NativeHelpers.SetupOcr(ocrConfig);
return initMsg;
}
public static void SetupOcr(OcrConfiguration ocrConfig)
{
// Build the ocr zone matrix in managed world using the OcrZoneChecker
var zoneChecker = new OcrZoneChecker(
ocrConfig,
ocrConfig.Alignment.Width,
ocrConfig.Alignment.Height,
ocrConfig.Zones,
ocrConfig.Alignment.CharPositions);
foreach (CharDefinition charDef in ocrConfig.CharDefinitions)
{
SetupOcrChar(charDef.Character[0], charDef.FixedPosition.HasValue ? charDef.FixedPosition.Value : -1);
foreach (ZoneSignature zoneSignt in charDef.ZoneSignatures)
{
OcrZone zone = ocrConfig.Zones.Single(z => z.ZoneId == zoneSignt.ZoneId);
int pixelsInZone = zone.Pixels.Count;
SetupOcrCharDefinitionZone(charDef.Character[0], zoneSignt.ZoneId, (int)zoneSignt.ZoneValue, pixelsInZone);
}
}
//for (int y = 0; y < ocrConfig.Alignment.Height; y++)
//{
// for (int x = 0; x < ocrConfig.Alignment.Width; x++)
// {
// if (zoneChecker.OcrPixelMap[y, x] != 0)
// {
// int charId;
// bool isOddField;
// int zoneId;
// int zonePixelId;
// OcrZoneChecker.UnpackValue(zoneChecker.OcrPixelMap[y, x], out charId, out isOddField, out zoneId, out zonePixelId);
// Trace.WriteLine(string.Format("[{0},{1}] = {2}|({3},{4},{5},{6})", x, y, zoneChecker.OcrPixelMap[y, x], charId, isOddField ? "O" : "E", zoneId, zonePixelId));
// }
// }
//}
SetupOcrZoneMatrix(zoneChecker.OcrPixelMap);
}
public string Initialize(OcrConfiguration ocrConfig, int imageWidth, int imageHeight)
{
this.ocrConfig = ocrConfig;
for (int i = 0; i < ocrConfig.Alignment.CharPositions.Count; i++)
{
int leftPos = ocrConfig.Alignment.CharPositions[i];
var ocredChar = new OcredChar(i, leftPos, ocrConfig.Alignment.CharWidth, ocrConfig.Alignment.CharHeight);
ocredChar.PopulateZones(ocrConfig.Zones);
ocredCharsOdd.Add(ocredChar);
ocredChar = new OcredChar(i, leftPos, ocrConfig.Alignment.CharWidth, ocrConfig.Alignment.CharHeight);
ocredChar.PopulateZones(ocrConfig.Zones);
ocredCharsEven.Add(ocredChar);
}
zoneChecker = new OcrZoneChecker(
ocrConfig,
ocrConfig.Alignment.Width,
ocrConfig.Alignment.Height,
ocrConfig.Zones,
ocrConfig.Alignment.CharPositions);
charRecognizer = new OcrCharRecognizer(
ocrConfig.Zones,
ocrConfig.CharDefinitions);
cameraImage = new CameraImage();
testContext = new StateContext();
generateDebugImages = false;
return null;
}
public static string SetupBasicOcrMetrix(OcrConfiguration ocrConfig)
{
int[] zonePixels = ocrConfig.Zones.Any()
? ocrConfig.Zones.Select(x => x.Pixels.Count).ToArray()
: new int[0];
if (ocrConfig.Zones.Any(x => x.ZoneId < 0))
return "ZoneIds must be greater or equal than zero.";
if (ocrConfig.Zones.Any(x => x.ZoneId >= ocrConfig.Zones.Count))
return "Each ZoneId must equal the index of the zone in the zone list.";
SetupIntegrationPreservationArea(
true,
ocrConfig.Alignment.FrameTopOdd,
ocrConfig.Alignment.FrameTopEven,
ocrConfig.Alignment.CharHeight);
int hr = SetupOcrAlignment(
ocrConfig.Alignment.Width,
ocrConfig.Alignment.Height,
ocrConfig.Alignment.FrameTopOdd,
ocrConfig.Alignment.FrameTopEven,
ocrConfig.Alignment.CharWidth,
ocrConfig.Alignment.CharHeight,
ocrConfig.Alignment.CharPositions.Count,
ocrConfig.Zones.Count,
(int)ocrConfig.Mode,
zonePixels);
if (hr != 0)
return "OCR config is incompatible with the current device.";
else
return null;
}
