private static void testMNIST()
{
var timer = new MyTimer();
List<Point>[] Edges = new List<Point>[10];
#region 准备边缘集合
//Font standardFont = new Font("Arial", 20);
//for (int i = 0; i < 10; ++i) {
// Image<Bgr, Byte> img = new Image<Bgr, byte>(28, 28);
// using (Graphics g = Graphics.FromImage(img.Bitmap)) {
// g.Clear(Color.Black);
// g.DrawString(i.ToString(), standardFont, Brushes.White, 0, 0);
// }
// Edges[i] = getEdge(img.Convert<Gray, Byte>());
// //img.Save(Path.Combine(@"D:\Play Data\", i + ".bmp"));
//}
for (int i = 0; i < 10; ++i) {
string template = Path.Combine(@"D:\Play Data\template", i + ".bmp");
Image<Gray, Byte> img = new Image<Gray, byte>(template);
Edges[i] = getEdge(img);
}
#endregion
List<string> wrong = new List<string>();
int testcount = 100, pos = 0;
foreach (var file in Directory.GetFiles(@"D:\Play Data\test", "*.bmp")) {
if (pos == testcount) break;
string filename = Path.GetFileNameWithoutExtension(file);
int ans = int.Parse(filename.Split('-')[1]);
timer.Restart();
List<Point> edge = getEdge(new Image<Gray, byte>(file));
ImageShapeContext[] isc1 = new ImageShapeContext[10];
ImageShapeContext[] isc2 = new ImageShapeContext[10];
KM[] kms = new KM[10];
double[] results = new double[10];
int scale = 8;
for (int d = 0; d < 10; ++d) {
int samplecount = Math.Min(edge.Count, Edges[d].Count);
var sc = createISC(edge, samplecount);
var sci = createISC(Edges[d], samplecount);
var scm = new ShapeContextMatching(sc.ShapeContests, sci.ShapeContests);
scm.BuildCostGraph();
var km = scm.Match();
isc1[d] = sc;
isc2[d] = sci;
kms[d] = km;
results[d] = (double)km.MatchResult / samplecount;
}
var sort = results.Select((c, i) => new { Cost = c, Digit = i }).OrderBy(v => v.Cost).ToArray();
if (sort[0].Digit == ans) {
var fc = Console.ForegroundColor;
Console.ForegroundColor = ConsoleColor.Green;
string s = String.Format("File:{0}-{1}ms-Right!\t", filename, timer.Stop());
for (int i = 0; i < 4; ++i) {
s += String.Format("{0}/{1:F4}, ", sort[i].Digit, sort[i].Cost);
}
Debug(s);
Console.ForegroundColor = fc;
} else {
var fc = Console.ForegroundColor;
Console.ForegroundColor = ConsoleColor.Red;
wrong.Add(filename);
string s = String.Format("File:{0}-{1}ms-Wrong!", filename, timer.Stop());
for (int i = 0; i < 5; ++i) {
s += String.Format("{0}/{1:F2}, ", sort[i].Digit, sort[i].Cost);
}
Debug(s);
Console.ForegroundColor = fc;
string dir = Path.Combine(@"D:\Play Data\output", filename);
if (Directory.Exists(dir)) Directory.Delete(dir, true);
Directory.CreateDirectory(dir);
for (int d = 0; d < 10; ++d) {
var sc = isc1[d];
var sci = isc2[d];
var km = kms[d];
int ax = (int)sc.Points.Average(p => p.X),
ay = (int)sc.Points.Average(p => p.Y),
bx = (int)sci.Points.Average(p => p.X),
by = (int)sci.Points.Average(p => p.Y);
int dx = bx - ax,
dy = by - ay;
Image<Bgr, Byte> img = new Image<Bgr, byte>(28 * scale, 28 * scale);
Font fs = new Font("Arial", 18);
using (Graphics g = Graphics.FromImage(img.Bitmap)) {
g.Clear(Color.Black);
for (int j = 0; j < sci.Points.Count; ++j) {
int i = km.MatchPair[j + sc.Points.Count];
Point pb = sci.Points[j], pa = sc.Points[i];
pb.X -= dx;
pb.Y -= dy;
int r = 2;
g.DrawEllipse(Pens.Red, pa.X * scale - r, pa.Y * scale - r, r * 2 + 1, r * 2 + 1);
g.DrawEllipse(Pens.Green, pb.X * scale - r, pb.Y * scale - r, r * 2 + 1, r * 2 + 1);
g.DrawLine(Pens.Gray, new Point(pa.X * scale, pa.Y * scale), new Point(pb.X * scale, pb.Y * scale));
}
g.DrawString(results[d].ToString(), fs, Brushes.White, new PointF(0, 0));
}
img.Save(Path.Combine(dir, d + ".bmp"));
}
}
++pos;
}
Debug("Wrong：{0}", wrong.Count);
Debug("Wrong rate:{0:F2}%", 100.0 * wrong.Count / testcount);
}
private static void MatchShapeContext(string path, string fa, string fb, char c)
{
MyTimer timer = new MyTimer();
Console.WriteLine("Doing...{0}", c);
var sca = CreateShapeContext(path, fa, 100, c);
var scb = CreateShapeContext(path, fb, 100, c);
var match = new ShapeContextMatching(sca.ShapeContests, scb.ShapeContests);
timer.Restart();
match.BuildCostGraph();
timer.StopAndSay("Build Graph");
timer.Restart();
var km = match.Match();
timer.StopAndSay("Match");
Console.WriteLine("Match Result:{0}", km.MatchResult);
int ax = (int)sca.Points.Average(p => p.X),
ay = (int)sca.Points.Average(p => p.Y),
bx = (int)scb.Points.Average(p => p.X),
by = (int)scb.Points.Average(p => p.Y);
int dx = bx - ax,
dy = by - ay;
int scale = 4;
Image<Bgr, Byte> img = new Image<Bgr, byte>(400 * scale, 400 * scale);
string scdir = Path.Combine(path, c.ToString());
if (Directory.Exists(scdir)) Directory.Delete(scdir, true);
Directory.CreateDirectory(scdir);
Font fs = new Font("Arial", 12);
using (Graphics g = Graphics.FromImage(img.Bitmap)) {
g.Clear(Color.Black);
Font font1 = new Font(fa, 240 * scale);
Font font2 = new Font(fb, 240 * scale);
g.DrawString(c.ToString(), font1, new SolidBrush(Color.FromArgb(30, 255, 0, 0)), new Point(0, 0));
g.DrawString(c.ToString(), font2, new SolidBrush(Color.FromArgb(30, 0, 255, 0)), new Point(-dx * scale, -dy * scale));
for (int j = 0; j < scb.Points.Count; ++j) {
int i = km.MatchPair[j + sca.Points.Count];
Point pb = scb.Points[j], pa = sca.Points[i];
pb.X -= dx;
pb.Y -= dy;
int r = 3;
g.DrawEllipse(Pens.Red, pa.X * scale - r, pa.Y * scale - r, r * 2 + 1, r * 2 + 1);
g.DrawEllipse(Pens.Green, pb.X * scale - r, pb.Y * scale - r, r * 2 + 1, r * 2 + 1);
g.DrawLine(Pens.Gray, new Point(pa.X * scale, pa.Y * scale), new Point(pb.X * scale, pb.Y * scale));
Point ps = new Point(pa.X * scale, pa.Y * scale);
g.DrawString(i.ToString(), fs, Brushes.White, ps);
string hisa = Path.Combine(scdir, String.Format("{0}-{1}.bmp", i, fa));
string hisb = Path.Combine(scdir, String.Format("{0}-{1}.bmp", i, fb));
sca.ShapeContests[i].Histogram.ToImage().Save(hisa);
scb.ShapeContests[j].Histogram.ToImage().Save(hisb);
}
}
img.Save(Path.Combine(path, String.Format("{0}-{1}-{2}.bmp", fa, fb, c)));
}