Android opencv 圖片處理

兩張圖片對比

private void matchBitmaps(){

        Mat srcMat=new Mat();
        Mat endMat=new Mat();
        Mat output = new Mat();
        Mat srcMask = new Mat();
        Mat endMask = new Mat();
        MatOfKeyPoint srcKeyPoint = new MatOfKeyPoint();
        MatOfKeyPoint endKeyPoint = new MatOfKeyPoint();
        MatOfDMatch matches = new MatOfDMatch();

        Utils.bitmapToMat(srcBitmap, srcMat);
        Utils.bitmapToMat(endBitmap, endMat);

        Imgproc.cvtColor(srcMat, srcMat, Imgproc.COLOR_RGB2GRAY);
        Imgproc.cvtColor(endMat, endMat, Imgproc.COLOR_RGB2GRAY);

        FeatureDetector endDetector = FeatureDetector
                .create(FeatureDetector.ORB);
        endDetector.detect(endMat, endKeyPoint);
        DescriptorExtractor endDescriptor = DescriptorExtractor
                .create(DescriptorExtractor.ORB);
        endDescriptor.compute(endMat, endKeyPoint, endMask);

        FeatureDetector srcDetector = FeatureDetector
                .create(FeatureDetector.ORB);
        srcDetector.detect(srcMat, srcKeyPoint);
        DescriptorExtractor srcDescriptor = DescriptorExtractor
                .create(DescriptorExtractor.ORB);
        srcDescriptor.compute(srcMat, srcKeyPoint, srcMask);

        DescriptorMatcher descriptormatcher = DescriptorMatcher
                .create(DescriptorMatcher.BRUTEFORCE_HAMMING);
        descriptormatcher.match(srcMask, endMask, matches);

        Features2d.drawMatches(srcMat,srcKeyPoint,endMat, endKeyPoint, matches, output);

        Bitmap matchBitmap= Bitmap.createScaledBitmap(srcBitmap, output.width(),output.height(), false);
        Utils.matToBitmap(output, matchBitmap);

        image1.setImageBitmap(matchBitmap);
    }

邊緣檢測

 Mat rgbMat = new Mat();
 Mat grayMat = new Mat();
Bitmap grayBitmap = Bitmap.createBitmap(srcBitmap.getWidth(), srcBitmap.getHeight(), Bitmap.Config.ARGB_8888);
Utils.bitmapToMat(srcBitmap, rgbMat);
Imgproc.Canny(rgbMat, grayMat,0,150); 
Utils.matToBitmap(grayMat, grayBitmap); 

高斯模糊

        Mat rgbMat = new Mat();
        Mat grayMat = new Mat();
        Bitmap grayBitmap = Bitmap.createBitmap(srcBitmap.getWidth(), srcBitmap.getHeight(), Bitmap.Config.RGB_565);
        Utils.bitmapToMat(srcBitmap, rgbMat);
        Imgproc.cvtColor(rgbMat, grayMat,type);
        Utils.matToBitmap(grayMat, grayBitmap);

後面有時間在繼續做吧