Example usage for org.opencv.imgproc Imgproc createCLAHE

Introduction

In this page you can find the example usage for org.opencv.imgproc Imgproc createCLAHE.

Prototype

public static CLAHE createCLAHE() 

Source Link

Usage

From source file:com.example.root.dipproj.MainActivity.java

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (resultCode == RESULT_OK) {
        if (requestCode == 1) {
            File f = new File(Environment.getExternalStorageDirectory().toString());
            for (File temp : f.listFiles()) {
                if (temp.getName().equals("temp.jpg")) {
                    f = temp;//from w  w w .ja  va2s  .  c  o m
                    break;
                }
            }
            try {
                Bitmap bitmap;
                BitmapFactory.Options bitmapOptions = new BitmapFactory.Options();
                bitmap = BitmapFactory.decodeFile(f.getAbsolutePath(), bitmapOptions);
                viewImage.setImageBitmap(bitmap);
                String path = android.os.Environment.getExternalStorageDirectory() + File.separator + "Phoenix"
                        + File.separator + "default";
                f.delete();
                OutputStream outFile = null;
                File file = new File(path, String.valueOf(System.currentTimeMillis()) + ".jpg");
                try {
                    outFile = new FileOutputStream(file);
                    bitmap.compress(Bitmap.CompressFormat.JPEG, 85, outFile);
                    outFile.flush();
                    outFile.close();
                } catch (FileNotFoundException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        } else if (requestCode == 2) {
            Uri selectedImage = data.getData();
            String[] filePath = { MediaStore.Images.Media.DATA };
            Cursor c = getContentResolver().query(selectedImage, filePath, null, null, null);
            c.moveToFirst();
            int columnIndex = c.getColumnIndex(filePath[0]);
            String picturePath = c.getString(columnIndex);
            c.close();
            Bitmap thumbnail = (BitmapFactory.decodeFile(picturePath));
            Log.w("path of image", picturePath + "");
            Mat imgMat = new Mat();
            Mat imgMat2 = new Mat();
            Mat imgMat3 = new Mat();
            Utils.bitmapToMat(thumbnail, imgMat);
            Imgproc.cvtColor(imgMat, imgMat, Imgproc.COLOR_RGB2GRAY);
            org.opencv.core.Size s = new Size(3, 3);
            Imgproc.createCLAHE();
            Imgproc.GaussianBlur(imgMat, imgMat, s, 2);
            Imgproc.erode(imgMat, imgMat2, Imgproc.getStructuringElement(Imgproc.MORPH_RECT, new Size(2, 2)));
            Imgproc.dilate(imgMat2, imgMat3, Imgproc.getStructuringElement(Imgproc.MORPH_RECT, new Size(2, 2)));
            Imgproc.Sobel(imgMat, imgMat, CvType.CV_8UC1, 1, 0);
            Core.absdiff(imgMat, imgMat3, imgMat);
            Imgproc.threshold(imgMat, imgMat, 123, 255, Imgproc.THRESH_OTSU);
            Utils.matToBitmap(imgMat, thumbnail);
            viewImage.setImageBitmap(thumbnail);
            saveBitmaptoSDCard(thumbnail);
        }
    }
}

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