public override Mat Render(CameraBridgeViewBase.ICvCameraViewFrame inputFrame)
{
Mat undistortedFrame = new Mat(inputFrame.Rgba().Size(), inputFrame.Rgba().Type());
Calib3dNET.Calib3d.Undistort(inputFrame.Rgba(), undistortedFrame,
mCalibrator.getCameraMatrix(), mCalibrator.getDistortionCoefficients());
Mat comparisonFrame = inputFrame.Rgba();
undistortedFrame.ColRange(new Range(0, mWidth / 2)).CopyTo(comparisonFrame.ColRange(new Range(mWidth / 2, mWidth)));
List <MatOfPoint> border = new List <MatOfPoint>();
int shift = (int)(mWidth * 0.005);
border.Add(new MatOfPoint(new Point(mWidth / 2 - shift, 0), new Point(mWidth / 2 + shift, 0),
new Point(mWidth / 2 + shift, mHeight), new Point(mWidth / 2 - shift, mHeight)));
Imgproc.FillPoly(comparisonFrame, border, new Scalar(255, 255, 255));
Imgproc.PutText(comparisonFrame, mResources.GetString(Resource.String.original), new Point(mWidth * 0.1, mHeight * 0.1),
Imgproc.FontHersheySimplex, 1.0, new Scalar(255, 255, 0));
Imgproc.PutText(comparisonFrame, mResources.GetString(Resource.String.undistorted), new Point(mWidth * 0.6, mHeight * 0.1),
Imgproc.FontHersheySimplex, 1.0, new Scalar(255, 255, 0));
return(comparisonFrame);
}
private void renderFrame(Mat rgbaFrame)
{
drawPoints(rgbaFrame);
Imgproc.PutText(rgbaFrame, "Captured: " + mCornersBuffer.Count, new Point(rgbaFrame.Cols() / 3 * 2, rgbaFrame.Rows() * 0.1),
Core.Core.FontHersheySimplex, 1.0, new Scalar(255, 255, 0));
}
internal Mat PuzzleFrame(Mat inputPicture)
{
lock (_lock)
{
Mat[] cells = new Mat[GridArea];
int rows = inputPicture.Rows();
int cols = inputPicture.Cols();
rows = rows - rows % 4;
cols = cols - cols % 4;
for (int i = 0; i < GridSize; i++)
{
for (int j = 0; j < GridSize; j++)
{
int k = i * GridSize + j;
cells[k] = inputPicture.Submat(i * inputPicture.Rows() / GridSize,
(i + 1) * inputPicture.Rows() / GridSize, j * inputPicture.Cols() / GridSize,
(j + 1) * inputPicture.Cols() / GridSize);
}
}
rows = rows - rows % 4;
cols = cols - cols % 4;
// copy shuffled tiles
for (int i = 0; i < GridArea; i++)
{
int idx = _indexes[i];
if (idx == GridEmptyIndex)
{
_cells15[i].SetTo(GridEmptyColor);
}
else
{
cells[idx].CopyTo(_cells15[i]);
if (_showTileNumbers)
{
Imgproc.PutText(_cells15[i], (1 + idx).ToString(), new Point((cols / GridSize - _textWidths[idx]) / 2,
(rows / GridSize + _textHeights[idx]) / 2), 3 /* CV_FONT_HERSHEY_COMPLEX */, 1, new Scalar(255, 0, 0, 255), 2);
}
}
}
for (int i = 0; i < GridArea; i++)
{
cells[i].Release();
}
DrawGrid(cols, rows, _rgba15);
return(_rgba15);
}
}
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);
}