public static ScanAndGrade findBubbles(Bitmap input, ExamSpecifics APBiologyExam)
{
Bitmap stretched = new Bitmap(input, (int)(input.Width), (int)(input.Height));
Image <Gray, Byte> grayImage = new Image <Bgr, byte>(stretched).Convert <Gray, Byte>();
CvInvoke.Threshold(grayImage, grayImage, 120, 1000, Emgu.CV.CvEnum.ThresholdType.BinaryInv);
Gray cannyThreshold = new Gray(1);
Gray circleAccumulatorThreshold = new Gray(30);
CircleF[] circles = grayImage.HoughCircles(
cannyThreshold,
circleAccumulatorThreshold,
1, //Resolution of the accumulator used to detect centers of the circles
1, //min distance
15, //min radius
60 //max radius
)[0]; //Get the circles from the first channel
Graphics f = Graphics.FromImage(input);
Graphics g = Graphics.FromImage(stretched);
List <Point> circleCenter = new List <Point>();
double avRadius = 0;
foreach (CircleF c1 in circles)
{
avRadius = avRadius + c1.Radius;
circleCenter.Add(new Point((int)c1.Center.X, (int)c1.Center.Y));
}
avRadius = avRadius / circles.Count();
input.Save("presorted.png");
Sectionizer testSections = new Sectionizer(circleCenter, avRadius);
ScanAndGrade scantron = new ScanAndGrade(stretched, testSections, APBiologyExam, avRadius);
Debug.WriteLine("AP Biology Exam Score: " + scantron.FinalUnweightedScore);
return(scantron);
}
public BubbleSheet(string seatID, string socialID, ExamSpecifics exam, double score, bool didCheat, bool wasAbsent, List <String> multipleChoiceAnswers, List <String> pairingAnswers, List <String> trueFalseAnswers, List <String> completionAnswers, List <String> subjectiveAnswers, Bitmap correctAnswerOverylay, Bitmap incorrectAnswerOverlay, Bitmap baseSheet, Bitmap unansweredAnswerOverlay)
{
this.seatID = seatID;
this.socialID = socialID;
this.exam = exam;
this.score = score;
this.didCheat = didCheat;
this.wasAbsent = wasAbsent;
this.multipleChoiceAnswers = multipleChoiceAnswers;
this.pairingAnswers = pairingAnswers;
this.trueFalseAnswers = trueFalseAnswers;
this.completionAnswers = completionAnswers;
this.subjectiveAnswers = subjectiveAnswers;
this.correctAnswerOverylay = correctAnswerOverylay;
this.incorrectAnswerOverlay = incorrectAnswerOverlay;
this.baseSheet = baseSheet;
this.unansweredAnswerOverlay = unansweredAnswerOverlay;
}
private void button1_Click(object sender, EventArgs e)
{
if (this.openFileDialog1.ShowDialog() == DialogResult.OK)
{
this.button1.Enabled = false;
this.textBox1.Text = this.openFileDialog1.FileName;
ExamSpecifics APBiologyExam = new ExamSpecifics(true, "AP Biology Exam", 0, "AAAAAAAAAAAAAAAAAAAA", 1, "AAAAAAAAAA", 1, "TTTTTTTTTT", 1, "1111111111", 1, 1);
Bitmap input = new Bitmap(Image.FromFile(this.openFileDialog1.FileName));
BubbleSheet scanned = FullScan.scanSheet(input, APBiologyExam);
this.label1.Text = "Total Score: " + scanned.score;
Bitmap overimage = new Bitmap(scanned.correctAnswerOverylay.Width, scanned.correctAnswerOverylay.Height);
Graphics g = Graphics.FromImage(overimage);
g.DrawImage(scanned.baseSheet, new Point(0, 0));
g.DrawImage(scanned.correctAnswerOverylay, new Point(0, 0));
this.pictureBox1.Image = overimage;
this.button1.Enabled = true;
}
}
static void Main()
{
/**
* List<Student> roster = new List<Student>();
* roster.Add(new Student("1262050", "Zachery Utt"));
* Exam quickExam = new Exam("AP Biology", 0,null,"","",30,10,10,10,5,4,10,7,1.0,1.0,1.0,1.0,1.0);
**/
ExamSpecifics APBiologyExam = new ExamSpecifics(true, "AP Biology Exam", 0, "AAAAAAAAAAAAA", 1, "AAAAAAA", 1, "TTTT", 1, "111", 1, 1);
// Stopwatch quicktime = new Stopwatch();
// quicktime.Start();
// Bitmap input = new Bitmap(Image.FromFile(@"C:\Users\Uttza\Desktop\toAnalyze.png"));
// BubbleSheet scanned = FullScan.scanSheet(input, APBiologyExam);
// scanned.save();
// Debug.WriteLine(quicktime.ElapsedMilliseconds);
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Graded());
}
public static BubbleSheet scanSheet(Bitmap input, ExamSpecifics test)
{
RotatedRect[] barcodes = BarScan.detectBarcodes(input);
Bitmap toScan = new Bitmap(input.Width, input.Height, PixelFormat.Format32bppArgb);
Graphics g = Graphics.FromImage(toScan);
g.DrawImage(input, new Point(0, 0));
g.Dispose();
toScan.SetPixel((int)barcodes[0].GetVertices()[1].X, (int)barcodes[0].GetVertices()[1].Y, Color.FromArgb(150, 0, 50));
toScan.SetPixel((int)barcodes[0].GetVertices()[3].X, (int)barcodes[0].GetVertices()[3].Y, Color.FromArgb(150, 0, 100));
toScan.SetPixel((int)barcodes[1].GetVertices()[1].X, (int)barcodes[1].GetVertices()[1].Y, Color.FromArgb(150, 50, 50));
toScan.SetPixel((int)barcodes[1].GetVertices()[3].X, (int)barcodes[1].GetVertices()[3].Y, Color.FromArgb(150, 50, 100));
Bitmap toCompartmentalize = new Bitmap(toScan.Width, toScan.Height);
int minY = 0;
bool found1 = false;
bool isDone = false;
Point p1 = new Point();
Point p2 = new Point();
Point p3 = new Point();
Point p4 = new Point();
for (int y = 0; y < toScan.Height; y++)
{
if (isDone)
{
break;
}
for (int x = 0; x < toScan.Width; x++)
{
Color c = toScan.GetPixel(x, y);
if (c.R == 150)
{
if (c.B == 50 && c.G == 0)
{
p1 = new Point(x, y);
}
else if (c.B == 100 && c.G == 0)
{
p2 = new Point(x, y);
}
else if (c.B == 50 && c.G == 50)
{
p3 = new Point(x, y);
}
else if (c.B == 100 && c.G == 50)
{
p4 = new Point(x, y);
}
if (c.B == 100)
{
if (found1)
{
if (y > minY)
{
minY = y;
}
isDone = true;
break;
}
else
{
minY = y;
found1 = true;
}
}
}
}
}
Graphics p = Graphics.FromImage(toCompartmentalize);
p.DrawImage(toScan, new Point(0, 0));
p.Dispose();
Rectangle r1 = new Rectangle(p1.X - 50, p1.Y - 50, (p2.X - p1.X) + 100, (p2.Y - p1.Y) + 100);
Rectangle r2 = new Rectangle(p3.X - 50, p3.Y - 50, (p4.X - p3.X) + 100, (p4.Y - p3.Y) + 100);
Barcodes quickCodes = new Barcodes(BarScan.cropImage(toCompartmentalize, r1), BarScan.cropImage(toCompartmentalize, r2));
toCompartmentalize = BarScan.cropImage(toCompartmentalize, new Rectangle(0, minY, toCompartmentalize.Width, toCompartmentalize.Height - minY));
ScanAndGrade scantron = Compartmentalize.findBubbles(toCompartmentalize, test);
//CALCULATE SCORE
double score = 0;
score = score + (scantron.scannedScores[1].score * test.multipleChoiceWeight);
score = score + (scantron.scannedScores[2].score * test.pairingWeight);
score = score + (scantron.scannedScores[3].score * test.trueWeight);
score = score + (scantron.scannedScores[4].score * test.compWeight);
score = score + (scantron.scannedScores[5].score * test.subjectWeight);
Bitmap correctAnswerOverlay = new Bitmap(toCompartmentalize.Width, toCompartmentalize.Height);
Bitmap inCorrectAnswerOverlay = new Bitmap(toCompartmentalize.Width, toCompartmentalize.Height);
Bitmap blankAnswerOverlay = new Bitmap(toCompartmentalize.Width, toCompartmentalize.Height);
Graphics correctAnswerOverlayGraphics = Graphics.FromImage(correctAnswerOverlay);
scantron.scannedScores[0].drawCorrectAnswer(correctAnswerOverlayGraphics);
scantron.scannedScores[1].drawCorrectAnswer(correctAnswerOverlayGraphics);
scantron.scannedScores[2].drawCorrectAnswer(correctAnswerOverlayGraphics);
scantron.scannedScores[3].drawCorrectAnswer(correctAnswerOverlayGraphics);
scantron.scannedScores[4].drawCorrectAnswer(correctAnswerOverlayGraphics);
scantron.scannedScores[5].drawCorrectAnswer(correctAnswerOverlayGraphics);
correctAnswerOverlayGraphics.Dispose();
Graphics inCorrectAnswerOverlayGraphics = Graphics.FromImage(inCorrectAnswerOverlay);
scantron.scannedScores[0].drawCorrectAnswer(inCorrectAnswerOverlayGraphics);
scantron.scannedScores[1].drawCorrectAnswer(inCorrectAnswerOverlayGraphics);
scantron.scannedScores[2].drawCorrectAnswer(inCorrectAnswerOverlayGraphics);
scantron.scannedScores[3].drawCorrectAnswer(inCorrectAnswerOverlayGraphics);
scantron.scannedScores[4].drawCorrectAnswer(inCorrectAnswerOverlayGraphics);
scantron.scannedScores[5].drawCorrectAnswer(inCorrectAnswerOverlayGraphics);
inCorrectAnswerOverlayGraphics.Dispose();
Graphics blankAnswerOverlayGraphics = Graphics.FromImage(blankAnswerOverlay);
scantron.scannedScores[0].drawCorrectAnswer(blankAnswerOverlayGraphics);
scantron.scannedScores[1].drawCorrectAnswer(blankAnswerOverlayGraphics);
scantron.scannedScores[2].drawCorrectAnswer(blankAnswerOverlayGraphics);
scantron.scannedScores[3].drawCorrectAnswer(blankAnswerOverlayGraphics);
scantron.scannedScores[4].drawCorrectAnswer(blankAnswerOverlayGraphics);
scantron.scannedScores[5].drawCorrectAnswer(blankAnswerOverlayGraphics);
blankAnswerOverlayGraphics.Dispose();
BubbleSheet toReturn = new BubbleSheet(quickCodes.seatID, quickCodes.socialID, test, score, (scantron.scannedScores[0] as StudentCondition).didCheat, (scantron.scannedScores[0] as StudentCondition).wasAbsent, scantron.scannedScores[1].getResponses(), scantron.scannedScores[2].getResponses(), scantron.scannedScores[3].getResponses(), scantron.scannedScores[4].getResponses(), scantron.scannedScores[5].getResponses(), correctAnswerOverlay, inCorrectAnswerOverlay, toCompartmentalize, blankAnswerOverlay);
return(toReturn);
}
private void gradeSection(int sectionCode, Bitmap stretched, Sectionizer testSections, ExamSpecifics exam, double avRadius)
{
if (sectionCode == 0)
{
LineScannerSC prelines = new LineScannerSC(testSections.studentCondition, avRadius);
StudentCondition section1 = new StudentCondition(prelines.lineX, prelines.lineY, stretched, exam, avRadius);
section1.scoreSection(stretched); // should be in a worker thread
scannedScores[sectionCode] = (section1);
}
if (sectionCode == 1)
{
LineScannerMC prelines = new LineScannerMC(testSections.multipleChoice, avRadius);
Multiple_Choice section1 = new Multiple_Choice(prelines.lineX, prelines.lineY, stretched, exam, avRadius);
section1.scoreSection(stretched); // should be in a worker thread
scannedScores[sectionCode] = (section1);
}
else if (sectionCode == 2)
{
LineScannerPairing prelines = new LineScannerPairing(testSections.pairing, avRadius);
Pairing section2 = new Pairing(prelines.lineX, prelines.lineY, stretched, exam, avRadius);
section2.scoreSection(stretched); // should be in a worker thread
scannedScores[sectionCode] = (section2);
}
else if (sectionCode == 3)
{
LineScannerTF prelines = new LineScannerTF(testSections.trueFalse, avRadius);
True_False section3 = new True_False(prelines.lineX, prelines.lineY, stretched, exam, avRadius);
section3.scoreSection(stretched); // should be in a worker thread
scannedScores[sectionCode] = (section3);
}
else if (sectionCode == 4)
{
LineScannerCompletion prelines = new LineScannerCompletion(testSections.completion, avRadius);
Completion section4 = new Completion(prelines.lineX, prelines.lineY, stretched, exam, avRadius);
section4.scoreSection(stretched); // should be in a worker thread
scannedScores[sectionCode] = (section4);
}
else if (sectionCode == 5)
{
LineScannerSubjective prelines = new LineScannerSubjective(testSections.subjective, avRadius);
Subjective section4 = new Subjective(prelines.lineX, prelines.lineY, stretched, exam, avRadius);
section4.scoreSection(stretched); // should be in a worker thread
scannedScores[sectionCode] = (section4);
}
}
public ScanAndGrade(Bitmap stretched, Sectionizer testSections, ExamSpecifics exam, double avRadius)
{
Bitmap fullCopy1 = new Bitmap(stretched.Width, stretched.Height);
Graphics g = Graphics.FromImage(fullCopy1);
g.DrawImage(stretched, new Point(0, 0));
Bitmap fullCopy0 = new Bitmap(stretched.Width, stretched.Height);
g = Graphics.FromImage(fullCopy0);
g.DrawImage(stretched, new Point(0, 0));
Bitmap fullCopy2 = new Bitmap(stretched.Width, stretched.Height);
g = Graphics.FromImage(fullCopy2);
g.DrawImage(stretched, new Point(0, 0));
Bitmap fullCopy3 = new Bitmap(stretched.Width, stretched.Height);
g = Graphics.FromImage(fullCopy3);
g.DrawImage(stretched, new Point(0, 0));
Bitmap fullCopy4 = new Bitmap(stretched.Width, stretched.Height);
g = Graphics.FromImage(fullCopy4);
g.DrawImage(stretched, new Point(0, 0));
Bitmap fullCopy5 = new Bitmap(stretched.Width, stretched.Height);
g = Graphics.FromImage(fullCopy5);
g.DrawImage(stretched, new Point(0, 0));
g.Dispose();
scannedScores = new List <ExamSection>(5);
scannedScores.Add(null);
scannedScores.Add(null);
scannedScores.Add(null);
scannedScores.Add(null);
scannedScores.Add(null);
scannedScores.Add(null);
Thread thread0 = new Thread(() => gradeSection(0, fullCopy0, testSections, exam, avRadius));
Thread thread1 = new Thread(() => gradeSection(1, fullCopy1, testSections, exam, avRadius));
Thread thread2 = new Thread(() => gradeSection(2, fullCopy2, testSections, exam, avRadius));
Thread thread3 = new Thread(() => gradeSection(3, fullCopy3, testSections, exam, avRadius));
Thread thread4 = new Thread(() => gradeSection(4, fullCopy4, testSections, exam, avRadius));
Thread thread5 = new Thread(() => gradeSection(5, fullCopy5, testSections, exam, avRadius));
thread0.Start();
thread1.Start();
thread2.Start();
thread3.Start();
thread4.Start();
thread5.Start();
thread1.Join();
thread2.Join();
thread3.Join();
thread0.Join();
thread4.Join();
thread5.Join();
for (int i = 0; i < scannedScores.Count; i++)
{
if (scannedScores[i] != null)
{
Debug.WriteLine(i + " : SCORE = " + scannedScores[i].score);
FinalUnweightedScore = FinalUnweightedScore + scannedScores[i].score;
}
}
}
