private Mat get_template(CascadeClassifier clssfr, Rect area, int size) { Mat template = new Mat(); Mat mROI = mGray.Submat(area); MatOfRect eyes = new MatOfRect(); Point iris = new Point(); Rect eye_template = new Rect(); clssfr.DetectMultiScale(mROI, eyes, 1.15, 2, Objdetect.CascadeFindBiggestObject | Objdetect.CascadeScaleImage, new Size(30, 30), new Size()); Rect[] eyesArray = eyes.ToArray(); for (int i = 0; i < eyesArray.Length;) { Rect e = eyesArray[i]; e.X = area.X + e.X; e.Y = area.Y + e.Y; Rect eye_only_rectangle = new Rect((int)e.Tl().X, (int)(e.Tl().Y + e.Height * 0.4), (int)e.Width, (int)(e.Height * 0.6)); mROI = mGray.Submat(eye_only_rectangle); Mat vyrez = mRgba.Submat(eye_only_rectangle); Core.MinMaxLocResult mmG = Core.MinMaxLoc(mROI); Imgproc.Circle(vyrez, mmG.MinLoc, 2, new Scalar(255, 255, 255, 255), 2); iris.X = mmG.MinLoc.X + eye_only_rectangle.X; iris.Y = mmG.MinLoc.Y + eye_only_rectangle.Y; eye_template = new Rect((int)iris.X - size / 2, (int)iris.Y - size / 2, size, size); Imgproc.Rectangle(mRgba, eye_template.Tl(), eye_template.Br(), new Scalar(255, 0, 0, 255), 2); template = (mGray.Submat(eye_template)).Clone(); return(template); } return(template); }
public Mat OnCameraFrame(CameraBridgeViewBase.ICvCameraViewFrame inputFrame) { mRgba = inputFrame.Rgba(); mGray = inputFrame.Gray(); if (mAbsoluteFaceSize == 0) { int height = mGray.Rows(); if (Math.Round(height * mRelativeFaceSize) > 0) { mAbsoluteFaceSize = (int)Math.Round(height * mRelativeFaceSize); } } if (mZoomWindow == null || mZoomWindow2 == null) { CreateAuxiliaryMats(); } MatOfRect faces = new MatOfRect(); if (FACE != null) { FACE.DetectMultiScale(mGray, faces, 1.1, 2, 2, // TODO: objdetect.CV_HAAR_SCALE_IMAGE new Size(mAbsoluteFaceSize, mAbsoluteFaceSize), new Size()); } Rect[] facesArray = faces.ToArray(); for (int i = 0; i < facesArray.Length; i++) { Imgproc.Rectangle(mRgba, facesArray[i].Tl(), facesArray[i].Br(), FACE_RECT_COLOR, 3); xCenter = (facesArray[i].X + facesArray[i].Width + facesArray[i].X) / 2; yCenter = (facesArray[i].Y + facesArray[i].Y + facesArray[i].Height) / 2; Point center = new Point(xCenter, yCenter); Imgproc.Circle(mRgba, center, 10, new Scalar(255, 0, 0, 255), 3); /* --- NOT NEEDED * Imgproc.putText(mRgba, "[" + center.X + "," + center.Y + "]", * new Point(center.X + 20, center.Y + 20), * Core.FONT_HERSHEY_SIMPLEX, 0.7, new Scalar(255, 255, 255, 255)); */ Rect r = facesArray[i]; // compute the eye area Rect eyearea = new Rect(r.X + r.Width / 8, (int)(r.Y + (r.Height / 4.5)), r.Width - 2 * r.Width / 8, (int)(r.Height / 3.0)); // split it Rect eyearea_right = new Rect(r.X + r.Width / 16, (int)(r.Y + (r.Height / 4.5)), (r.Width - 2 * r.Width / 16) / 2, (int)(r.Height / 3.0)); Rect eyearea_left = new Rect(r.X + r.Width / 16 + (r.Width - 2 * r.Width / 16) / 2, (int)(r.Y + (r.Height / 4.5)), (r.Width - 2 * r.Width / 16) / 2, (int)(r.Height / 3.0)); // draw the area - mGray is working grayscale mat, if you want to see area in rgb preview, // change mGray to mRgba Imgproc.Rectangle(mRgba, eyearea_left.Tl(), eyearea_left.Br(), new Scalar(255, 0, 0, 255), 2); Imgproc.Rectangle(mRgba, eyearea_right.Tl(), eyearea_right.Br(), new Scalar(255, 0, 0, 255), 2); if (learn_frames < 5) { teplateR = get_template(EYE, eyearea_right, 24); teplateL = get_template(EYE, eyearea_left, 24); learn_frames++; } else { // Learning finished, use the new templates for template matching match_eye(eyearea_right, teplateR, method); match_eye(eyearea_left, teplateL, method); } // cut eye areas and put them to zoom windows Imgproc.Resize(mRgba.Submat(eyearea_left), mZoomWindow2, mZoomWindow2.Size()); Imgproc.Resize(mRgba.Submat(eyearea_right), mZoomWindow, mZoomWindow.Size()); } /* * mRgba = inputFrame.Rgba(); * Log.Info(TAG, "called OnCameraFrame"); * * if (mIsColorSelected) * { * mDetector.Process(mRgba); * List<MatOfPoint> contours = mDetector.Contours; * Log.Error(TAG, "Contours count: " + contours.Count); * Imgproc.DrawContours(mRgba, contours, -1, CONTOUR_COLOR); * * Mat colorLabel = mRgba.Submat(4, 68, 4, 68); * colorLabel.SetTo(mBlobColorRgba); * * Mat spectrumLabel = mRgba.Submat(4, 4 + mSpectrum.Rows(), 70, 70 + mSpectrum.Cols()); * mSpectrum.CopyTo(spectrumLabel); * } */ return(mRgba); }
public Mat OnCameraFrame(CameraBridgeViewBase.ICvCameraViewFrame inputFrame) { Mat rgba = inputFrame.Rgba(); Size sizeRgba = rgba.Size(); Mat rgbaInnerWindow; int rows = (int)sizeRgba.Height; int cols = (int)sizeRgba.Width; int left = cols / 8; int top = rows / 8; int width = cols * 3 / 4; int height = rows * 3 / 4; switch (CameraViewActivity.viewMode) { case CameraViewActivity.VIEW_MODE_RGBA: Point center = new Point(100, 200); int radius = 100; Scalar color = new Scalar(0, 255, 0); // canvas, center, radius, color, linewidth Imgproc.Circle(rgba, center, radius, color, 5); center.X = 400; center.Y = 700; color.Val[0] = 255; // canvas, string, left up, font id, size, color Imgproc.PutText(rgba, "Surprise,\nmotherfucker!", center, 1, 4, color, 16); break; case CameraViewActivity.VIEW_MODE_HIST: Mat hist = new Mat(); int thikness = (int)(sizeRgba.Width / (mHistSizeNum + 10) / 5); if (thikness > 5) { thikness = 5; } int offset = (int)((sizeRgba.Width - (5 * mHistSizeNum + 4 * 10) * thikness) / 2); // RGB for (int c = 0; c < 3; c++) { Imgproc.CalcHist(Arrays.AsList(rgba).Cast <Mat>().ToList(), mChannels[c], mMat0, hist, mHistSize, mRanges); Core.Normalize(hist, hist, sizeRgba.Height / 2, 0, Core.NormInf); hist.Get(0, 0, mBuff); for (int h = 0; h < mHistSizeNum; h++) { mP1.X = mP2.X = offset + (c * (mHistSizeNum + 10) + h) * thikness; mP1.Y = sizeRgba.Height - 1; mP2.Y = mP1.Y - 2 - (int)mBuff[h]; Imgproc.Line(rgba, mP1, mP2, mColorsRGB[c], thikness); } } // Value and Hue Imgproc.CvtColor(rgba, mIntermediateMat, Imgproc.ColorRgb2hsvFull); // Value Imgproc.CalcHist(Arrays.AsList(mIntermediateMat).Cast <Mat>().ToList(), mChannels[2], mMat0, hist, mHistSize, mRanges); Core.Normalize(hist, hist, sizeRgba.Height / 2, 0, Core.NormInf); hist.Get(0, 0, mBuff); for (int h = 0; h < mHistSizeNum; h++) { mP1.X = mP2.X = offset + (3 * (mHistSizeNum + 10) + h) * thikness; mP1.Y = sizeRgba.Height - 1; mP2.Y = mP1.Y - 2 - (int)mBuff[h]; Imgproc.Line(rgba, mP1, mP2, mWhilte, thikness); } // Hue Imgproc.CalcHist(Arrays.AsList(mIntermediateMat).Cast <Mat>().ToList(), mChannels[0], mMat0, hist, mHistSize, mRanges); Core.Normalize(hist, hist, sizeRgba.Height / 2, 0, Core.NormInf); hist.Get(0, 0, mBuff); for (int h = 0; h < mHistSizeNum; h++) { mP1.X = mP2.X = offset + (4 * (mHistSizeNum + 10) + h) * thikness; mP1.Y = sizeRgba.Height - 1; mP2.Y = mP1.Y - 2 - (int)mBuff[h]; Imgproc.Line(rgba, mP1, mP2, mColorsHue[h], thikness); } break; case CameraViewActivity.VIEW_MODE_CANNY: rgbaInnerWindow = rgba.Submat(top, top + height, left, left + width); Imgproc.Canny(rgbaInnerWindow, mIntermediateMat, 80, 90); Imgproc.CvtColor(mIntermediateMat, rgbaInnerWindow, Imgproc.ColorGray2bgra, 4); rgbaInnerWindow.Release(); break; case CameraViewActivity.VIEW_MODE_SOBEL: Mat gray = inputFrame.Gray(); Mat grayInnerWindow = gray.Submat(top, top + height, left, left + width); rgbaInnerWindow = rgba.Submat(top, top + height, left, left + width); Imgproc.Sobel(grayInnerWindow, mIntermediateMat, CvType.Cv8u, 1, 1); Core.ConvertScaleAbs(mIntermediateMat, mIntermediateMat, 10, 0); Imgproc.CvtColor(mIntermediateMat, rgbaInnerWindow, Imgproc.ColorGray2bgra, 4); grayInnerWindow.Release(); rgbaInnerWindow.Release(); break; case CameraViewActivity.VIEW_MODE_SEPIA: rgbaInnerWindow = rgba.Submat(top, top + height, left, left + width); Core.Transform(rgbaInnerWindow, rgbaInnerWindow, mSepiaKernel); rgbaInnerWindow.Release(); break; case CameraViewActivity.VIEW_MODE_ZOOM: Mat zoomCorner = rgba.Submat(0, rows / 2 - rows / 10, 0, cols / 2 - cols / 10); Mat mZoomWindow = rgba.Submat(rows / 2 - 9 * rows / 100, rows / 2 + 9 * rows / 100, cols / 2 - 9 * cols / 100, cols / 2 + 9 * cols / 100); Imgproc.Resize(mZoomWindow, zoomCorner, zoomCorner.Size()); Size wsize = mZoomWindow.Size(); Imgproc.Rectangle(mZoomWindow, new Point(1, 1), new Point(wsize.Width - 2, wsize.Height - 2), new Scalar(255, 0, 0, 255), 2); zoomCorner.Release(); mZoomWindow.Release(); break; case CameraViewActivity.VIEW_MODE_PIXELIZE: rgbaInnerWindow = rgba.Submat(top, top + height, left, left + width); Imgproc.Resize(rgbaInnerWindow, mIntermediateMat, mSize0, 0.1, 0.1, Imgproc.InterNearest); Imgproc.Resize(mIntermediateMat, rgbaInnerWindow, rgbaInnerWindow.Size(), 0.0, 0.0, Imgproc.InterNearest); rgbaInnerWindow.Release(); break; case CameraViewActivity.VIEW_MODE_POSTERIZE: /* * Imgproc.cvtColor(rgbaInnerWindow, mIntermediateMat, Imgproc.COLOR_RGBA2RGB); * Imgproc.pyrMeanShiftFiltering(mIntermediateMat, mIntermediateMat, 5, 50); * Imgproc.cvtColor(mIntermediateMat, rgbaInnerWindow, Imgproc.COLOR_RGB2RGBA); */ rgbaInnerWindow = rgba.Submat(top, top + height, left, left + width); Imgproc.Canny(rgbaInnerWindow, mIntermediateMat, 80, 90); rgbaInnerWindow.SetTo(new Scalar(0, 0, 0, 255), mIntermediateMat); Core.ConvertScaleAbs(rgbaInnerWindow, mIntermediateMat, 1.0 / 16, 0); Core.ConvertScaleAbs(mIntermediateMat, rgbaInnerWindow, 16, 0); rgbaInnerWindow.Release(); break; } return(rgba); }