securesmartcam / app / src / main / java / org / witness / obscuracam / photo / filters / BlurObscure.java @ 41590feb
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/*
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* This ObscureMethod blurs the contents of the region
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*/
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package org.witness.obscuracam.photo.filters; |
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import java.util.Properties; |
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import android.graphics.Bitmap; |
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import android.graphics.Canvas; |
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import android.graphics.Paint; |
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import android.graphics.RectF; |
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public class BlurObscure implements RegionProcesser { |
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Bitmap originalBmp; |
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Properties mProps;
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Paint mPaint;
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private final static int BLUR_OFFSET = 10; |
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public BlurObscure(Paint paint) { |
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mProps = new Properties (); |
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mProps.put("obfuscationType", this.getClass().getName()); |
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mPaint = paint; |
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} |
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public void processRegion(RectF rect, Canvas canvas, Bitmap bitmap) { |
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Bitmap bRect = applyGaussianBlur(bitmap, rect); |
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canvas.drawBitmap(bRect, (int)rect.left, (int)rect.top, mPaint); |
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// return properties and data as a map
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mProps.put("initialCoordinates", "[" + rect.top + "," + rect.left + "]"); |
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mProps.put("regionWidth", Float.toString(Math.abs(rect.left - rect.right))); |
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mProps.put("regionHeight", Float.toString(Math.abs(rect.top - rect.bottom))); |
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} |
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public static Bitmap applyGaussianBlur(Bitmap src, RectF rect) { |
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double[][] GaussianBlurConfig = new double[][] { |
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{ 1, 2, 1 },
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{ 2, 4, 2 },
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{ 1, 2, 1 }
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}; |
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ConvolutionMatrix convMatrix = new ConvolutionMatrix(3); |
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convMatrix.applyConfig(GaussianBlurConfig); |
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convMatrix.Factor = 16;
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convMatrix.Offset = 0;
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return ConvolutionMatrix.computeConvolution3x3(src, convMatrix, (int)rect.left,(int)rect.right,(int)rect.top,(int)rect.bottom); |
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} |
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/*
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private void makeItBlur(Rect rect)
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{
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if (rect.left <= (0 + BLUR_OFFSET*2)) {
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rect.left = (1 + BLUR_OFFSET*2);
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} else if (rect.right >= (originalBmp.getWidth()-1-BLUR_OFFSET*2)) {
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rect.right = (originalBmp.getWidth() - 2 - BLUR_OFFSET*2);
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}
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if (rect.top <= (0 + BLUR_OFFSET*2)) {
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rect.top = (1 + BLUR_OFFSET*2);
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} else if (rect.bottom >= (originalBmp.getHeight() - BLUR_OFFSET*2)) {
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rect.bottom = (originalBmp.getHeight() - 2 - BLUR_OFFSET*2);
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}
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for (int x = rect.left; x < rect.right - 1; x++) {
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for (int y = rect.top; y < rect.bottom - 1; y++) {
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int blurOffset = (int)((Math.random()*BLUR_OFFSET)+BLUR_OFFSET);
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int r = getRed(x,y, blurOffset);
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blurOffset = (int)((Math.random()*BLUR_OFFSET)+BLUR_OFFSET);
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int g = getGreen(x,y, blurOffset);
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blurOffset = (int)((Math.random()*BLUR_OFFSET)+BLUR_OFFSET);
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int b = getBlue(x,y, blurOffset);
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originalBmp.setPixel(x, y, Color.rgb(r,g,b));
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}
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}
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}
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private int getRed(int x, int y, int blurOffset) {
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return
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(Color.red(originalBmp.getPixel(x-blurOffset, y-blurOffset)) +
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Color.red(originalBmp.getPixel(x, y-blurOffset)) +
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Color.red(originalBmp.getPixel(x+blurOffset, y-blurOffset)) +
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Color.red(originalBmp.getPixel(x-blurOffset, y)) +
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Color.red(originalBmp.getPixel(x, y)) +
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Color.red(originalBmp.getPixel(x+blurOffset, y)) +
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Color.red(originalBmp.getPixel(x-blurOffset, y+blurOffset)) +
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Color.red(originalBmp.getPixel(x, y+blurOffset)) +
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Color.red(originalBmp.getPixel(x+blurOffset, y+blurOffset)))/9;
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}
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private int getGreen(int x, int y, int blurOffset) {
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return
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(Color.green(originalBmp.getPixel(x-blurOffset, y-blurOffset)) +
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Color.green(originalBmp.getPixel(x, y-blurOffset)) +
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Color.green(originalBmp.getPixel(x+blurOffset, y-blurOffset)) +
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Color.green(originalBmp.getPixel(x-blurOffset, y)) +
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Color.green(originalBmp.getPixel(x, y)) +
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Color.green(originalBmp.getPixel(x+blurOffset, y)) +
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Color.green(originalBmp.getPixel(x-blurOffset, y+blurOffset)) +
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Color.green(originalBmp.getPixel(x, y+blurOffset)) +
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Color.green(originalBmp.getPixel(x+blurOffset, y+blurOffset)))/9;
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}
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private int getBlue(int x, int y, int blurOffset) {
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return
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(Color.blue(originalBmp.getPixel(x-blurOffset, y-blurOffset)) +
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Color.blue(originalBmp.getPixel(x, y-blurOffset)) +
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Color.blue(originalBmp.getPixel(x+blurOffset, y-blurOffset)) +
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Color.blue(originalBmp.getPixel(x-blurOffset, y)) +
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Color.blue(originalBmp.getPixel(x, y)) +
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Color.blue(originalBmp.getPixel(x+blurOffset, y)) +
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Color.blue(originalBmp.getPixel(x-blurOffset, y+blurOffset)) +
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Color.blue(originalBmp.getPixel(x, y+blurOffset)) +
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Color.blue(originalBmp.getPixel(x+blurOffset, y+blurOffset)))/9;
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}*/
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public Properties getProperties() |
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{
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return mProps;
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} |
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public void setProperties(Properties props) |
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{
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mProps = props; |
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} |
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@Override
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public Bitmap getBitmap() {
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// TODO Auto-generated method stub
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return null; |
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} |
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} |
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