From bae8a88c53dabccd2d717ad9353b087f916edca7 Mon Sep 17 00:00:00 2001 From: Alexander Smorkalov Date: Fri, 4 May 2012 13:46:00 +0000 Subject: [PATCH] Base version implemented. --- .../ColorBlobDetectionView.java | 156 +++++++++++++++++- 1 file changed, 149 insertions(+), 7 deletions(-) diff --git a/samples/android/color-blob-detection/src/org/opencv/samples/colorblobdetect/ColorBlobDetectionView.java b/samples/android/color-blob-detection/src/org/opencv/samples/colorblobdetect/ColorBlobDetectionView.java index 74b79cd4f3..1e42c59994 100644 --- a/samples/android/color-blob-detection/src/org/opencv/samples/colorblobdetect/ColorBlobDetectionView.java +++ b/samples/android/color-blob-detection/src/org/opencv/samples/colorblobdetect/ColorBlobDetectionView.java @@ -1,9 +1,19 @@ package org.opencv.samples.colorblobdetect; +import java.util.ArrayList; +import java.util.List; + import org.opencv.android.Utils; +import org.opencv.core.Core; +import org.opencv.core.CvType; import org.opencv.core.Mat; +import org.opencv.core.MatOfPoint; +import org.opencv.core.Rect; +import org.opencv.core.Scalar; +import org.opencv.core.Size; import org.opencv.highgui.Highgui; import org.opencv.highgui.VideoCapture; +import org.opencv.imgproc.Imgproc; import android.content.Context; import android.graphics.Bitmap; @@ -13,11 +23,19 @@ import android.view.SurfaceHolder; import android.view.View; import android.view.View.OnTouchListener; -public class ColorBlobDetectionView extends SampleCvViewBase implements - OnTouchListener { +public class ColorBlobDetectionView extends SampleCvViewBase implements OnTouchListener { private Mat mRgba; private static final String TAG = "Example/CollorBlobDetection"; + + public boolean mIsColorSelected = false; + public Scalar mSelectedColorRgba = new Scalar(255); + public Scalar mSelectedColorHsv = new Scalar(255); + public Scalar mLowerBound = new Scalar(0); + public Scalar mUpperBound = new Scalar(0); + private final int mColorRadius = 25; + public Mat mSpectrum = new Mat(); + public int mSpectrumScale = 2; public ColorBlobDetectionView(Context context) { @@ -34,23 +52,114 @@ public class ColorBlobDetectionView extends SampleCvViewBase implements } } - @Override public boolean onTouch(View v, MotionEvent event) { // TODO Auto-generated method stub int cols = mRgba.cols(); int rows = mRgba.rows(); + + Log.d(TAG, "Resolition: " + cols + "x" + rows); + int xoffset = (getWidth() - cols) / 2; int yoffset = (getHeight() - rows) / 2; + Log.d(TAG, "Touch offset " + xoffset + "x" + yoffset); + + Log.d(TAG, "Screen touch coordinates: " + event.getX() + "x" + event.getY()); + int x = (int)event.getX() - xoffset; int y = (int)event.getY() - yoffset; - double TouchedColor[] = mRgba.get(x,y); - Log.i(TAG, "Touch coordinates: (" + x + ", " + y + ")"); - Log.i(TAG, "Touched rgba color: (" + TouchedColor[0] + ", " + TouchedColor[1] + - ", " + TouchedColor[2] + ", " + TouchedColor[0] + ",)"); + + if ((x > cols) || (y > rows)) return false; + + Rect TouchedRect = new Rect(); + + if (x-4 >= 0) + TouchedRect.x = x-4; + else + TouchedRect.x = 0; + + if (y-4 >= 0) + TouchedRect.y = y-4; + else + TouchedRect.y = 0; + + if (x+4 < mRgba.cols()) + TouchedRect.width = x + 4 - TouchedRect.x; + else + TouchedRect.width = mRgba.width() - TouchedRect.x; + + if (y+4 < mRgba.rows()) + TouchedRect.height = y+4 - TouchedRect.y; + else + TouchedRect.height = mRgba.rows() - TouchedRect.y; + + Mat TouchedRegionMat = mRgba.submat(TouchedRect); + Mat TouchedRegionMatHsv = new Mat(); + + Imgproc.cvtColor(TouchedRegionMat, TouchedRegionMatHsv, Imgproc.COLOR_RGB2HSV_FULL); + + mSelectedColorHsv = Core.sumElems(TouchedRegionMatHsv); + int DotCount = TouchedRect.width*TouchedRect.height; + for (int i = 0; i < mSelectedColorHsv.val.length; i++) + { + mSelectedColorHsv.val[i] /= DotCount; + } + + Mat rgbaDotMap = new Mat(); + Mat hsvDotMat = new Mat(1, 1, CvType.CV_8UC3); + + byte[] buf = {(byte)mSelectedColorHsv.val[0], (byte)mSelectedColorHsv.val[1], (byte)mSelectedColorHsv.val[2]}; + + hsvDotMat.put(0, 0, buf); + Imgproc.cvtColor(hsvDotMat, rgbaDotMap, Imgproc.COLOR_HSV2RGB_FULL, 4); + + mSelectedColorRgba.val = rgbaDotMap.get(0, 0); + + Log.i(TAG, "Touched rgba color: (" + mSelectedColorRgba.val[0] + ", " + mSelectedColorRgba.val[1] + + ", " + mSelectedColorRgba.val[2] + ", " + mSelectedColorRgba.val[3] + ")"); + + double MinH = 0; + double MaxH = 255; + + if (mSelectedColorHsv.val[0]-mColorRadius >= 0) + MinH = mSelectedColorHsv.val[0]-mColorRadius; + else + MinH = 0; + + if (mSelectedColorHsv.val[0]+mColorRadius <= 255) + MaxH = mSelectedColorHsv.val[0]+mColorRadius; + else + MaxH = 255; + + mLowerBound.val[0] = MinH; + mUpperBound.val[0] = MaxH; + + mLowerBound.val[1] = 100; + mUpperBound.val[1] = 255; + + mLowerBound.val[2] = 100; + mUpperBound.val[2] = 255; + + Mat HsvSpectrum = new Mat(32, 2*mColorRadius*mSpectrumScale, CvType.CV_8UC3); + + for (int i = 0; i < 32; i++) + { + for (int k = 0; k < mSpectrumScale; k++) + { + for (int j = 0; j < MaxH-MinH; j++) + { + byte[] tmp = {(byte)(MinH+j), (byte)255, (byte)255}; + HsvSpectrum.put(i, j*mSpectrumScale + k, tmp); + } + } + } + + Imgproc.cvtColor(HsvSpectrum, mSpectrum, Imgproc.COLOR_HSV2RGB_FULL, 4); + + mIsColorSelected = true; return false; // don't need subsequent touch events } @@ -61,6 +170,39 @@ public class ColorBlobDetectionView extends SampleCvViewBase implements capture.retrieve(mRgba, Highgui.CV_CAP_ANDROID_COLOR_FRAME_RGBA); Bitmap bmp = Bitmap.createBitmap(mRgba.cols(), mRgba.rows(), Bitmap.Config.ARGB_8888); + + if (mIsColorSelected) + { + Mat BlurMat = mRgba; //new Mat(); + //Imgproc.blur(mRgba, BlurMat, new Size(3, 3)); + + Mat hsvMat = new Mat(); + Imgproc.cvtColor(BlurMat, hsvMat, Imgproc.COLOR_RGB2HSV_FULL); + + Log.d(TAG, "Bounds: " + mLowerBound + "x" + mUpperBound); + + Mat RangedHsvMat = new Mat(); + Core.inRange(hsvMat, mLowerBound, mUpperBound, RangedHsvMat); + + Mat DilatedMat = new Mat(); + Imgproc.dilate(RangedHsvMat, DilatedMat, new Mat()); + + Mat CannyRangedMat = new Mat(); + Imgproc.Canny(RangedHsvMat, CannyRangedMat, 80, 90); + + List contours = new ArrayList(5); + Mat hierarchy = new Mat(); + + Imgproc.findContours(CannyRangedMat, contours, hierarchy, Imgproc.RETR_EXTERNAL, Imgproc.CHAIN_APPROX_SIMPLE); + Imgproc.drawContours(mRgba, contours, -1, new Scalar(255,0,0,255)); + + Mat TestColorMat = mRgba.submat(2, 34, 2, 34); + TestColorMat.setTo(mSelectedColorRgba); + + Mat TestSpectrumMat = mRgba.submat(2, 34, 38, 38 + mSpectrum.cols()); + mSpectrum.copyTo(TestSpectrumMat); + } + try { Utils.matToBitmap(mRgba, bmp); } catch(Exception e) {