public bufferedLockBitmap EdgeMagnitude() { bufferedLockBitmap pic1 = NO.LinearFilter(this.ImageLockBitmap, gn.line_detect_vertical(), 3, 3, 1, 1, "abs"); bufferedLockBitmap pic2 = NO.LinearFilter(this.ImageLockBitmap, gn.line_detect_Horizontal(), 3, 3, 1, 1, "abs"); Bitmap temp = new Bitmap(this.ImageLockBitmap.Width, this.ImageLockBitmap.Height); bufferedLockBitmap bt = new bufferedLockBitmap(temp); bt.LockBits(); double sumR = 0, sumG = 0, sumB = 0; for (int i = 0; i < this.ImageLockBitmap.Height; i++) { for (int j = 0; j < this.ImageLockBitmap.Width; j++) { sumR += (double)pic1.Getpixel(j, i).R + pic2.Getpixel(j, i).R; sumG += (double)pic1.Getpixel(j, i).G + pic2.Getpixel(j, i).G; sumB += (double)pic1.Getpixel(j, i).B + pic2.Getpixel(j, i).B; if (sumR > 255) sumR = 255; else if (sumR < 0) sumR = 0; if (sumG > 255) sumG = 255; else if (sumG < 0) sumG = 0; if (sumB > 255) sumB = 255; else if (sumB < 0) sumB = 0; bt.SetPixel(j, i, Color.FromArgb(Convert.ToInt32(sumR), Convert.ToInt32(sumG), Convert.ToInt32(sumB))); sumR = 0; sumG = 0; sumB = 0; } } bt.UnlockBits(); this.ImageLockBitmap = bt; return this.ImageLockBitmap; }
public Bitmap Addpictures(bufferedLockBitmap pic1, bufferedLockBitmap pic2, double fraction) { if (pic1.Width == pic2.Width && pic1.Height == pic2.Height) { temp = new Bitmap(pic1.Width, pic1.Height); bufferedLockBitmap r = new bufferedLockBitmap(temp); r.LockBits(); int R, G, B = 0; double f; for (int i = 0; i < temp.Height; i++) { for (int j = 0; j < temp.Width; j++) { f = ((((double)pic1.Getpixel(j, i).R)) * fraction) + (((double)pic2.Getpixel(j, i).R) * (1 - fraction)); R = Convert.ToInt32(f); f = ((((double)pic1.Getpixel(j, i).G)) * fraction) + (((double)pic2.Getpixel(j, i).G) * (1 - fraction)); G = Convert.ToInt32(f); f = ((((double)pic1.Getpixel(j, i).B)) * fraction) + (((double)pic2.Getpixel(j, i).B) * (1 - fraction)); B = Convert.ToInt32(f); r.SetPixel(j, i, Color.FromArgb(R, G, B)); } } r.UnlockBits(); return r.source; } else MessageBox.Show("picture 1 size is equal to picture 2 size"); return temp; }
/** For each pixel location in the new buffer P' (NewX, NewY), do: Find corresponding old location, P = W-1.P' Validate that this old location lie inside the original image boundary (i.e. 0 ≤ OldX < W, 0 ≤ Old Y < H). Otherwise, set the new empty pixel to 0 and continue to next location. If Validated, apply Bilinear Interpolation Algorithm to get the new pixel value, as follows:(Refer to above figure) */ public bufferedLockBitmap apply_transformation_matrix_to_bitmap_or_buffer(Matrix _transformations_matrix, bufferedLockBitmap _src_img, int _new_width, int _new_height) { Bitmap temp = new Bitmap(_new_width, _new_height); bufferedLockBitmap ret = new bufferedLockBitmap(temp); ret.LockBits(); BilinearInterpolation obj_bi_lin_interpol = new BilinearInterpolation(); for (int i = 0; i < _new_width; i++) { for (int j = 0; j < _new_height; j++) { PointF[] points = { new PointF(i, j) }; _transformations_matrix.TransformPoints(points); Color _color = Color.FromArgb(0); if (points[0].X >= 0 && points[0].X < _src_img.source.Width && points[0].Y >= 0 && points[0].Y < _src_img.source.Height) _color = obj_bi_lin_interpol.calculate(_src_img, points[0].X, points[0].Y, _new_width, _new_height); ret.SetPixel(i, j, _color); } } ret.UnlockBits(); return ret; }
public Bitmap Read(String path) { String[] pa = path.Split('.'); if (pa[pa.Length - 1] == "ppm" || pa[pa.Length - 1] == "PPM") { PP36File = new PP36FileReading(path); ImageBitmap = PP36File.ImageBitmap; ImageHigh = ImageBitmap.Height; ImageWidth = ImageBitmap.Width; } else { PP36File = new PP36FileReading(); PP36File.readbitmap(path); ImageBitmap = PP36File.ImageBitmap; ImageHigh = ImageBitmap.Height; ImageWidth = ImageBitmap.Width; } ImageLockBitmap = new bufferedLockBitmap(ImageBitmap); ImageLockBitmap.LockBits(); op = new Pixel_logic__Operations(this.ImageLockBitmap); return ImageLockBitmap.source; }
public Bitmap AND(bufferedLockBitmap pic1, bufferedLockBitmap pic2) { temp = new Bitmap(pic1.Width, pic1.Height); bufferedLockBitmap bf = new bufferedLockBitmap(temp); bf.LockBits(); int R, G, B = 0; if (pic1.Width == pic2.Width) { R = 0; G = 0; B = 0; for (int i = 0; i < pic1.Height; i++) { for (int j = 0; j < pic1.Width; j++) { R = pic1.Getpixel(j, i).R & pic2.Getpixel(j, i).R; G = pic1.Getpixel(j, i).G & pic2.Getpixel(j, i).G; B = pic1.Getpixel(j, i).B & pic2.Getpixel(j, i).B; bf.SetPixel(j, i, Color.FromArgb(Convert.ToInt32(R), Convert.ToInt32(G), Convert.ToInt32(B))); } } } bf.UnlockBits(); return bf.source; }
public void Quantization(bufferedLockBitmap input, int num) { int sum = 0; double f = 2; int math = Convert.ToInt32(Math.Log(Convert.ToDouble(num), f)); for (int w = 7; w > 7 - math; w--) { sum = sum + Convert.ToInt32(Math.Pow(f, Convert.ToInt32(w))); } temp = new Bitmap(input.Width, input.Height); bf = new bufferedLockBitmap(temp); input.LockBits(); int R, G, B; for (int i = 0; i < input.Height; i++) { for (int j = 0; j < input.Width; j++) { R = input.Getpixel(j, i).R & sum; G = input.Getpixel(j, i).G & sum; B = input.Getpixel(j, i).B & sum; input.SetPixel(j, i, Color.FromArgb(R, G, B)); } } input.UnlockBits(); }
public Bitmap Subtraction(bufferedLockBitmap pic1, bufferedLockBitmap pic2) { temp = new Bitmap(pic1.Width, pic1.Height); bufferedLockBitmap bf = new bufferedLockBitmap(temp); bf.LockBits(); int gmaxR = 0, gmaxG = 0, gmaxb = 0, gminR = 1000, gminG = 10000, gminb = 1000; int te; int R, G, B = 0; if (pic1.Width == pic2.Width) { R = 0; G = 0; B = 0; for (int i = 0; i < pic1.Height; i++) { for (int j = 0; j < pic1.Width; j++) { R = Math.Abs(pic1.Getpixel(j, i).R - pic2.Getpixel(j, i).R); G = Math.Abs(pic1.Getpixel(j, i).G - pic2.Getpixel(j, i).G); B = Math.Abs(pic1.Getpixel(j, i).B - pic2.Getpixel(j, i).B); te = R; if (te > gmaxR) gmaxR = te; if (te < gminR) gminR = te; te = G; if (te > gmaxb) gmaxb = te; if (te < gminb) gminb = te; te = B; if (te > gmaxG) gmaxG = te; if (te < gminG) gminG = te; } } } for (int i = 0; i < pic1.Height; i++) { for (int j = 0; j < pic1.Width; j++) { R = Math.Abs(pic1.Getpixel(j, i).R - pic2.Getpixel(j, i).R); G = Math.Abs(pic1.Getpixel(j, i).G - pic2.Getpixel(j, i).G); B = Math.Abs(pic1.Getpixel(j, i).B - pic2.Getpixel(j, i).B); R = Convert.ToInt32(((double)(R - minR) / (maxR - minR)) * ((255 - 0))); G = Convert.ToInt32(((double)(G - minG) / (maxG - minG)) * ((255 - 0))); B = Convert.ToInt32(((double)(B - minb) / (maxb - minb)) * ((255 - 0))); if (R > 255) R = 255; else if (R < 0) R = 0; if (G > 255) G = 255; else if (G < 0) G = 0; if (B > 255) B = 255; else if (B < 0) B = 0; bf.SetPixel(j, i, Color.FromArgb(Convert.ToInt32(R), Convert.ToInt32(G), Convert.ToInt32(B))); } } bf.UnlockBits(); return bf.source; }
public bufferedLockBitmap Grayscale(bufferedLockBitmap input) { input.LockBits(); int sum = 0; for (int i = 0; i < input.Height; i++) { for (int j = 0; j < input.Width; j++) { sum = 0; sum = input.Getpixel(j, i).R + input.Getpixel(j, i).G + input.Getpixel(j, i).B; sum /= 3; input.SetPixel(j, i, Color.FromArgb(sum, sum, sum)); } } input.UnlockBits(); return input; }
public void notoperation(bufferedLockBitmap input, int dif) { if (dif == 0) for (int i = 0; i < input.Height; i++) { for (int j = 0; j < input.Width; j++) { input.SetPixel(j, i, Color.FromArgb(dif - input.Getpixel(j, i).R, dif - input.Getpixel(j, i).G, dif - input.Getpixel(j, i).B)); } } else { temp = new Bitmap(input.Width, input.Height); bufferedLockBitmap bf = new bufferedLockBitmap(temp); bf.LockBits(); int gmaxR = 0, gmaxG = 0, gmaxb = 0, gminR = 1000, gminG = 10000, gminb = 1000; int te; int R, G, B = 0; for (int i = 0; i < input.Height; i++) { for (int j = 0; j < input.Width; j++) { R = dif - input.Getpixel(j, i).R; G = dif - input.Getpixel(j, i).G; B = dif - input.Getpixel(j, i).B; te = R; if (te > gmaxR) gmaxR = te; if (te < gminR) gminR = te; te = G; if (te > gmaxb) gmaxb = te; if (te < gminb) gminb = te; te = B; if (te > gmaxG) gmaxG = te; if (te < gminG) gminG = te; } } for (int i = 0; i < input.Height; i++) { for (int j = 0; j < input.Width; j++) { R =Math.Abs( dif - input.Getpixel(j, i).R); G = Math.Abs(dif - input.Getpixel(j, i).G); B = Math.Abs(dif - input.Getpixel(j, i).B); //R = Convert.ToInt32(((double)(R - minR) / (maxR - minR)) * ((255 - 0))); //G = Convert.ToInt32(((double)(G - minG) / (maxG - minG)) * ((255 - 0))); //B = Convert.ToInt32(((double)(B - minb) / (maxb - minb)) * ((255 - 0))); if (R > 255) R = 255; else if (R < 0) R = 0; if (G > 255) G = 255; else if (G < 0) G = 0; if (B > 255) B = 255; else if (B < 0) B = 0; input.SetPixel(j, i, Color.FromArgb(Convert.ToInt32(R), Convert.ToInt32(G), Convert.ToInt32(B))); } } bf.UnlockBits(); } }
public bufferedLockBitmap Flippingvertical(bufferedLockBitmap pic1) { Bitmap temp = new Bitmap(pic1.Width, pic1.Height); bufferedLockBitmap t = new bufferedLockBitmap(temp); t.LockBits(); //flip images Color p; int ImageWidth = pic1.Width; int ImageHigh = pic1.Height; Bitmap mimg = new Bitmap(ImageWidth, ImageHigh); for (int i = 0; i < ImageHigh; i++) { for (int lx = 0; lx < ImageWidth; ++lx) { p = pic1.Getpixel(lx, ImageHigh - i - 1); t.SetPixel(lx, i, p); } } t.UnlockBits(); return t; }
public bufferedLockBitmap Gamma(bufferedLockBitmap input, double dif) { if (dif == 0) return input; if (dif < 0) dif = 1 / Math.Abs(dif); double te = 0; double gmaxR = -10000, gmaxG =-10000, gmaxb = -10000, gminR = 10000, gminG = 10000, gminb = 10000; for (int i = 0; i < input.Height; i++) { for (int j = 0; j < input.Width; j++) { te = Math.Pow(input.Getpixel(j, i).R, dif); if (te > gmaxR) gmaxR = te; else if (te < gminR) gminR = te; te = Math.Pow(input.Getpixel(j, i).B, dif); if (te > gmaxb) gmaxb = te; else if (te < gminb) gminb = te; te = Math.Pow(input.Getpixel(j, i).G, dif); if (te > gmaxG) gmaxG = te; if (te < gminG) gminG = te; } } temp = new Bitmap(input.Width, input.Height); bf = new bufferedLockBitmap(temp); bf.LockBits(); double R, G, B = 0,x; for (int i = 0; i < input.Height; i++) { for (int j = 0; j < input.Width; j++) { R = (Math.Pow(input.Getpixel(j, i).R, dif)); x = (Math.Pow(input.Getpixel(j, i).G, dif)); B = (Math.Pow(input.Getpixel(j, i).B, dif)); R = Convert.ToInt32(((double)(R - gminR) / (gmaxR - gminR)) * (255 - 0)); G = Convert.ToInt32(((double)(x - gminG) / (gmaxG - gminG)) * (255 - 0)); B = Convert.ToInt32(((double)(B - gminb) / (gmaxb - gminb)) * (255 - 0)); //if (R > 255) R = 255; //else if (R < 0) R = 0; //if (G > 255) G = 255; //else if (G < 0) G = 0; //if (B > 255) B = 255; //else if (B < 0) B = 0; bf.SetPixel(j, i, Color.FromArgb(Convert.ToInt32(R), Convert.ToInt32(G), Convert.ToInt32(B))); } } bf.UnlockBits(); return bf; }
public bufferedLockBitmap FlippingHorizontal(bufferedLockBitmap imageLockBitmap) { Bitmap temp = new Bitmap(imageLockBitmap.Width, imageLockBitmap.Height); bufferedLockBitmap t = new bufferedLockBitmap(temp); t.LockBits(); //flip images int ImageWidth = imageLockBitmap.Width; int ImageHigh = imageLockBitmap.Height; Bitmap mimg = new Bitmap(ImageWidth, ImageHigh); for (int i = 0; i < ImageHigh; i++) { for (int lx = 0; lx < ImageWidth; ++lx) { Color p = imageLockBitmap.Getpixel(ImageWidth - lx - 1, i); t.SetPixel(lx, i, p); } } t.UnlockBits(); return t; }
public bufferedLockBitmap contrast(bufferedLockBitmap input, int x, int y) { temp = new Bitmap(input.Width, input.Height); bf = new bufferedLockBitmap(temp); bf.LockBits(); int NewMinR = 0, NewMinG = 0, NewMinB = 0, NewMaxR = 0, NewMaxG = 0, NewMaxB = 0; temp = new Bitmap(input.Width, input.Height); int R, G, B; NewMinR = minR + x; NewMinG = minG + x; NewMinB = minb + x; NewMaxR = maxR + y; NewMaxB = maxb + y; NewMaxG = maxG + y; for (int i = 0; i < input.Height; i++) { for (int j = 0; j < input.Width; j++) { R = input.Getpixel(j, i).R; R = Convert.ToInt32(((double)(R - minR) / (maxR - minR)) * ((NewMaxR - NewMinR)) + NewMinR); G = input.Getpixel(j, i).G; G = Convert.ToInt32(((double)(G - minG) / (maxG - minG)) * ((NewMaxG - NewMinG)) + NewMinG); B = input.Getpixel(j, i).B; B = Convert.ToInt32(((double)(B - minb) / (maxb - minb)) * ((NewMaxB - NewMinB)) + NewMinB); if (R > 255) R = 255; else if (R < 0) R = 0; if (G > 255) G = 255; else if (G < 0) G = 0; if (B > 255) B = 255; else if (B < 0) B = 0; bf.SetPixel(j, i, Color.FromArgb(R, G, B)); } } bf.UnlockBits(); return bf; }
public bufferedLockBitmap Brightness(bufferedLockBitmap input, int dif) { temp = new Bitmap(input.Width, input.Height); bf = new bufferedLockBitmap(temp); bf.LockBits(); int R, G, B = 0; for (int i = 0; i < input.Height; i++) { for (int j = 0; j < input.Width; j++) { R = input.Getpixel(j, i).R + dif; G = input.Getpixel(j, i).G + dif; B = input.Getpixel(j, i).B + dif; if (R > 255) R = 255; else if (R < 0) R = 0; if (G > 255) G = 255; else if (G < 0) G = 0; if (B > 255) B = 255; else if (B < 0) B = 0; bf.SetPixel(j, i, Color.FromArgb(R, G, B)); } } bf.UnlockBits(); return bf; }
public bufferedLockBitmap Bit_plane(bufferedLockBitmap input, int number, bool R, bool G, bool B) { temp = new Bitmap(input.source); bf = new bufferedLockBitmap(temp); bf.LockBits(); int p; int red = 0, blue = 0, green = 0; for (int i = 0; i < temp.Height; i++) { for (int j = 0; j < temp.Width; j++) { if (R == true) { p = bf.Getpixel(j, i).R & Word[number ]; if (p != 0) red = 255; else if (p == 0) red = 0; } if (G == true) { p = bf.Getpixel(j, i).G & Word[number ]; if (p != 0) green = 255; else if (p == 0) green = 0; } if (B == true) { p = bf.Getpixel(j, i).B & Word[number ]; if (p != 0) blue = 255; else if (p == 0) blue = 0; } bf.SetPixel(j, i, Color.FromArgb(red, green, blue)); } } bf.UnlockBits(); return bf; }
public bufferedLockBitmap LinearFilter(bufferedLockBitmap input, double[,] mask, int w, int h, int x, int y, String word) { Bitmap temp = new Bitmap(input.Width, input.Height); bufferedLockBitmap bt = new bufferedLockBitmap(temp); bt.LockBits(); double sumR = 0, sumG = 0, sumB = 0; for (int i = 0; i < input.Height; i++) { for (int j = 0; j < input.Width; j++) { for (int maskh = 0; maskh < h; maskh++) { for (int maskw = 0; maskw < w; maskw++) { if (j + maskw - x < 0) continue; else if (j + maskw - x >= input.Width) continue; else if ((i + maskh - y >= input.Height)) continue; else if (i + maskh - y < 0) continue; else { sumR += (double)input.Getpixel(j + maskw - x, i + maskh - y).R * mask[maskh, maskw]; sumG += (double)input.Getpixel(j + maskw - x, i + maskh - y).G * mask[maskh, maskw]; sumB += (double)input.Getpixel(j + maskw - x, i + maskh - y).B * mask[maskh, maskw]; } } } if (word == "cutoff") { if (sumR > 255) sumR = 255; else if (sumR < 0) sumR = 0; if (sumG > 255) sumG = 255; else if (sumG < 0) sumG = 0; if (sumB > 255) sumB = 255; else if (sumB < 0) sumB = 0; } else if (word == "abs") { sumB = Math.Abs(sumB); sumR = Math.Abs(sumR); sumG = Math.Abs(sumG); if (sumR > 255) sumR = 255; else if (sumR < 0) sumR = 0; if (sumG > 255) sumG = 255; else if (sumG < 0) sumG = 0; if (sumB > 255) sumB = 255; else if (sumB < 0) sumB = 0; } bt.SetPixel(j, i, Color.FromArgb(Convert.ToInt32(sumR), Convert.ToInt32(sumG), Convert.ToInt32(sumB))); sumR = 0; sumG = 0; sumB = 0; } } bt.UnlockBits(); return bt; }