public void CreatTemplateTest()
{
/* double[,] img1 = ImageHelper.LoadImage<double>(Resources._1_1);
double[,] img2 = ImageHelper.LoadImage<double>(Resources._1_2*/
double[,] imgDoubles = ImageHelper.LoadImage<double>(Resources._1_1);
imgDoubles.DoNormalization(100, 100);
int[,] imgInts = imgDoubles.Select2D((x => (int)x));
OrientationField orf = new OrientationField(imgInts, 16);
double[,] orient = orf.GetOrientationMatrix(imgInts.GetLength(0), imgInts.GetLength(1));
var freqMatrx = LocalRidgeFrequency.GetFrequencies(imgDoubles, orient);
var res = ImageEnhancement.Enhance(imgDoubles, orient, freqMatrx, 32, 8);
/* var img = ImageHelper.LoadImage<int>(Resources._1_1);
int h = img.GetLength(0);
int w = img.GetLength(1);
int[] withoutHolesAndIslands = HolesAndIslandsResolver.ResolveHolesAndIslands(
Array2Dto1D(ImageProcessing.Binarization.ImageBinarization.Binarize2D(img, 128)),
16,
9,
w, h);*/
}
public static void SaveToFile(this OrientationField field, string name, bool openFileAfterSaving = false)
{
var bmp = SaveToBitmap(field);
bmp.Save(name, ImageHelper.GetImageFormatFromExtension(name));
if (openFileAfterSaving)
{
Process.Start(name);
}
}
public static Bitmap SaveToBitmap(this OrientationField field)
{
using (var bmp = new Bitmap(field.Blocks.GetLength(1) * field.BlockSize, field.Blocks.GetLength(0) * field.BlockSize))
{
var gfx = Graphics.FromImage(bmp);
gfx.FillRectangle(Brushes.White, new Rectangle(0, 0, bmp.Width, bmp.Height));
gfx.Save();
return(SaveAboveToBitmap(field, bmp));
}
}
public static double[,] CreatTemplateTest(double[,] imgDoubles)
{
imgDoubles.DoNormalization(100, 100);
int[,] imgInts = imgDoubles.Select2D((x => (int)x));
OrientationField orf = new OrientationField(imgInts, 16);
double[,] orient = orf.GetOrientationMatrix(imgInts.GetLength(0), imgInts.GetLength(1));
var freqMatrx = LocalRidgeFrequency.GetFrequencies(imgDoubles, orient);
var res = ImageEnhancement.Enhance(imgDoubles, orient, freqMatrx, 32, 8);
return ImageBinarization.Binarize2D(res, 128);
}
public void ImageEnhancmentTest()
{
var bmp = Resources.SampleFinger;
double[,] imgDoubles = ImageHelper.LoadImage<double>(bmp);
imgDoubles.DoNormalization(100, 100);
int[,] imgInts = imgDoubles.Select2D((x => (int)x));
OrientationField orf = new OrientationField(imgInts, 16);
double[,] orient = orf.GetOrientationMatrix(imgInts.GetLength(0), imgInts.GetLength(1));
var freqMatrx = LocalRidgeFrequency.GetFrequencies(imgDoubles, orient);
var res = ImageEnhancement.Enhance(imgDoubles, orient, freqMatrx, 32, 8);
var bmp2 = ImageHelper.SaveArrayToBitmap(res);
bmp2.Save("001.bmp", ImageHelper.GetImageFormatFromExtension("009.bmp"));
}
public static void SaveToFile(this OrientationField field)
{
SaveToFile(field, ImageHelper.GetTemporaryImageFileName(), true);
}
// a shorter method to be used in tests
public static void SaveAboveToFile(this OrientationField field, Bitmap undercoat)
{
SaveAboveToFile(field, undercoat, ImageHelper.GetTemporaryImageFileName(), true);
}
public static int[] ProjectionX(int xCentre, int yCentre, int[,] arr)
{
int fieldSizey = FieldSizex/2;
int[] projX = new int[FieldSizex];
OrientationField img = new OrientationField(arr);
var angleOfX = img.GetOrientation(xCentre, yCentre) - Math.PI/2.0;
Point tmpPoint;
double angleSin = Math.Sin(angleOfX);
double angleCos = Math.Cos(angleOfX);
for (int i = -FieldSizex/2; i < FieldSizex/2; i++)
{
projX[i + FieldSizex/2] = 255;
for (int j = -fieldSizey/2; j < fieldSizey/2; j++) // find the darkest
{
double localSegment = Math.Sqrt(i*i + j*j);
if (Math.Abs(localSegment) > 0.000001) // double tolerance
{
angleSin = Math.Sin(angleOfX + Math.Asin(find_sin(1.0, 0.0, i, j)));
angleCos = Math.Cos(angleOfX + Math.Acos(find_cos(1.0, 0.0, i, j)));
tmpPoint = Turn(0, (int) Math.Round(localSegment), 0, 0, angleCos, angleSin);
}
else
{
tmpPoint.X = 0;
tmpPoint.Y = 0;
}
if (tmpPoint.X + xCentre < 0 || tmpPoint.X + xCentre >= arr.GetLength(0) || tmpPoint.Y + yCentre < 0 ||
tmpPoint.Y + yCentre >= arr.GetLength(1))
{
continue;
}
if (projX[i + FieldSizex/2] >= arr[tmpPoint.X + xCentre, tmpPoint.Y + yCentre])
{
projX[i + FieldSizex/2] = arr[tmpPoint.X + xCentre, tmpPoint.Y + yCentre];
}
}
}
return projX;
}