public Mat OnCameraFrame(CameraBridgeViewBase.ICvCameraViewFrame inputFrame)
{
mRGBA = inputFrame.Rgba();
mRGBAT = mRGBA.T();
Core.Flip(mRGBA.T(), mRGBAT, 1);
Imgproc.Resize(mRGBAT, mRGBAT, mRGBA.Size());
return(mRGBAT);
}
public bool OnTouch(View v, MotionEvent e)
{
int cols = mRgba.Cols();
int rows = mRgba.Rows();
int xOffset = (mOpenCvCameraView.Width - cols) / 2;
int yOffset = (mOpenCvCameraView.Height - rows) / 2;
int x = (int)e.GetX() - xOffset;
int y = (int)e.GetY() - yOffset;
Log.Info("BlobDetection", "Touch image coordinates: (" + x + ", " + y + ")");
if ((x < 0) || (y < 0) || (x > cols) || (y > rows))
{
return(false);
}
Rect touchedRect = new Rect();
touchedRect.X = (x > 4) ? x - 4 : 0;
touchedRect.Y = (y > 4) ? y - 4 : 0;
touchedRect.Width = (x + 4 < cols) ? x + 4 - touchedRect.X : cols - touchedRect.X;
touchedRect.Height = (y + 4 < rows) ? y + 4 - touchedRect.Y : rows - touchedRect.Y;
Mat touchedRegionRgba = mRgba.Submat(touchedRect);
Mat touchedRegionHsv = new Mat();
Imgproc.CvtColor(touchedRegionRgba, touchedRegionHsv, Imgproc.ColorRgb2hsvFull);
// Calculate average color of touched region
mBlobColorHsv = Core.SumElems(touchedRegionHsv);
int pointCount = touchedRect.Width * touchedRect.Height;
for (int i = 0; i < mBlobColorHsv.Val.Count; i++)
{
mBlobColorHsv.Val[i] /= pointCount;
}
mBlobColorRgba = ConvertScalarHsv2Rgba(mBlobColorHsv);
Log.Info("BlobDetection", "Touched rgba color: (" + mBlobColorRgba.Val[0] + ", " + mBlobColorRgba.Val[1] +
", " + mBlobColorRgba.Val[2] + ", " + mBlobColorRgba.Val[3] + ")");
mDetector.SetHsvColor(mBlobColorHsv);
Imgproc.Resize(mDetector.Spectrum, mSpectrum, SPECTRUM_SIZE);
mIsColorSelected = true;
touchedRegionRgba.Release();
touchedRegionHsv.Release();
return(false); // don't need subsequent touch events
}
/// <summary>
/// Resizes a image by the given parameters
/// </summary>
/// <param name="img">Image to resize</param>
/// <param name="width">Old Size * width</param>
/// <param name="heigth">Old Size * height</param>
/// <returns>resized image</returns>
public static Bitmap resizeImage(Bitmap img, double width, double heigth)
{
//Matrix für das Bild
Mat src = new Mat();
Mat dst = new Mat();
//Bild zu Matrix umwandeln
Utils.BitmapToMat(img, src);
//Bild zu Matrix umwandeln
// downsample and use it for processing
Imgproc.Resize(src, dst, new Size(src.Size().Width *width, src.Size().Height *heigth));
Bitmap img1;
img1 = Bitmap.CreateBitmap(dst.Cols(), dst.Rows(), Bitmap.Config.Argb8888);
Utils.MatToBitmap(dst, img1);
return(img1);
}
public void Recognize(Mat bin, Mat gray)
{
mTypes = new SignType[mRects.Count];
int iRect = 0;
foreach (Core.Rect rect in mRects)
{
// Crop
Mat graySign = new Mat(gray, rect);
Imgproc.Resize(graySign, graySign, new Size(SIGN_WIDTH, SIGN_HEIGHT));
// Compute HOG descriptor
MatOfFloat descriptors = new MatOfFloat();
mHog.Compute(graySign, descriptors);
Mat fm = new Mat(descriptors.Size(), CvType.Cv32f);
// predict matrix transposition
//mTypes[iRect] = (SignType)(int)(mSvm.Predict(fm.T()));
iRect++;
}
}
void Resize(Mat Target, Size Size)
{
Imgproc.Resize(Mat, Target, new Org.Opencv.Core.Size(Size.Width, Size.Height), 0, 0, Imgproc.InterArea);
}
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 (ImageManipulationsActivity.viewMode)
{
case ImageManipulationsActivity.VIEW_MODE_RGBA:
break;
case ImageManipulationsActivity.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 ImageManipulationsActivity.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 ImageManipulationsActivity.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 ImageManipulationsActivity.VIEW_MODE_SEPIA:
rgbaInnerWindow = rgba.Submat(top, top + height, left, left + width);
Core.Transform(rgbaInnerWindow, rgbaInnerWindow, mSepiaKernel);
rgbaInnerWindow.Release();
break;
case ImageManipulationsActivity.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 ImageManipulationsActivity.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 ImageManipulationsActivity.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);
}
public Mat OnCameraFrame(CameraBridgeViewBase.ICvCameraViewFrame inputFrame)
{
//mRgba = inputFrame.Rgba();
Bitmap bitmap = BitmapFactory.DecodeResource(Resources, Resource.Drawable.test2);
Mat mat = new Mat();
Android.Utils.BitmapToMat(bitmap, mat);
Imgproc.Resize(mat, mRgba, mRgba.Size());
mat.Release();
bitmap.Recycle();
bitmap.Dispose();
// Start
// Sign detection
Mat binSign;
mSignDetector.Update(mRgba, out binSign);
// Filter image based on color to find markings
Mat bin = mLaneMarkFilter.FilterMarkings(mRgba);
// Generate bird eye view
float marginX = 0.42f;
float marginY = 0.65f;
Mat a, b, birdsEyeView;
mTransformer.GetBirdEye(bin, mRgba, marginX, marginY, out a, out b, out birdsEyeView);
// Scale to mini bird view and draw to origin
Mat birdEyeMiniView = new Mat(birdsEyeView.Size(), CvType.Cv8uc4);// new Mat(birdsEyeView.Height() / 2, birdsEyeView.Width() / 2, mRgba.Type(), new Scalar(0, 255, 0, 255));
Imgproc.CvtColor(birdsEyeView, birdEyeMiniView, Imgproc.ColorGray2bgra);
Imgproc.Resize(birdEyeMiniView, birdEyeMiniView, new Size(birdsEyeView.Cols() / 2, birdsEyeView.Rows() / 2));
birdEyeMiniView.CopyTo(mRgba.RowRange(0, birdsEyeView.Rows() / 2).ColRange(0, birdsEyeView.Cols() / 2));
List <Core.Rect> rects = mSignDetector.GetSignRects();
SignDetector.SignType[] types = mSignDetector.GetSignTypes();
int iRect = 0;
foreach (var rect in rects)
{
if (types[iRect] != SignDetector.SignType.None)
{
Imgproc.Rectangle(mRgba, new Core.Point(rect.X, rect.Y), new Core.Point(rect.X + rect.Width, rect.Y + rect.Height), new Scalar(255, 0, 0, 255), 3);
}
iRect++;
}
//Imgproc.Resize(binSign, binSign, new Size(mRgba.Cols() / 2, mRgba.Rows() / 2));
//Mat binSignMini = new Mat(binSign.Size(), CvType.Cv8uc4);
//Imgproc.CvtColor(binSign, binSignMini, Imgproc.ColorGray2bgra);
//binSignMini.CopyTo(mRgba.RowRange(0, mRgba.Rows() / 2).ColRange(mRgba.Cols() / 2, mRgba.Cols()));
// End
// Release
birdsEyeView.Release();
birdEyeMiniView.Release();
a.Release();
b.Release();
bin.Release();
return(mRgba);
}
