public void Dispose()
{
ScannedImage = null;
ItemAltsCheckedState = null;
ItemAltsLocation = null;
ColorDistribution = null;
BarCodeBytes = null;
}
public void Analyze(float sure, float doubt, ref PageStatus status)
{
// If the image has been analyzed earlier it has to be reloaded
if (ProcessedImage)
{
LoadImage();
status.Reset();
}
// Resizing can only happen as part of RotateAndCrop
int resize = (int)((Math.Max(Program.Test.Paper.Dimensions.Pixel.Width, Program.Test.Paper.Dimensions.Pixel.Height) * 150) / Math.Max(ScannedImage.GetLength(0), ScannedImage.GetLength(1)));
// Half searchsize must be bigger than calibrationpoint, but not too big (border / other points) => Difficult, depends on how it is scanned (rotation)
// After resize the picture is at a standard size ==> fixed searchsize
int searchSize = 40;
// Midpoints of itemalts
ItemAltsLocation = Calibration.RotateAndCrop(Program.Test, ref ScannedImage, ref BarCodeBytes, resize, searchSize);
if (ItemAltsLocation[0, 0].X != 0 && ItemAltsLocation[0, 0].Y != 0)
{
ItemAltsCheckedState = new ItemCheckedState[Program.Test.Paper.Blocks.X, Program.Test.Paper.Blocks.Y];
ObservedBlockSize = new SizeF(
(float)ScannedImage.GetLength(0) / Program.Test.Paper.Blocks.X,
(float)ScannedImage.GetLength(1) / Program.Test.Paper.Blocks.Y);
ColorDistribution = new ColorDistribution();
if (!BarError(BarCodeBytes))
{
// BarCodeBytes[0] is page number (0 based) ==> has to be smaller than count
// Only BarMatch for first three bytes (first is page number, second and third are hash, rest doesn't matter)
if (BarCodeBytes[0] < Program.Test.Pages.Count && BarMatch(BarCodeBytes, Program.Test.Pages[BarCodeBytes[0]].Hash(), 3))
{
CalculateInitialItemAltsCheckedState(BarCodeBytes[0], sure, doubt); // Other way to reach this is after manually setting page number
}
else
{
status.PageNumberOrHashError = true; // Fail: invalid page number according to barcode or page hash not correct
}
}
else
{
status.BarCodeError = true; // Fail: could not read barcode, or not correctly (parity check fail)
}
}
else
{
status.CalibrationError = true; // Fail: probably couldn't calibrate
}
ProcessedImage = true;
status.Analyzed = true;
}