@TargetApi(10)
private Bitmap decodeRegionCrop(Bitmap croppedImage, Rect rect) {
// Release memory now
clearImageView();
InputStream is = null;
try {
is = getContentResolver().openInputStream(sourceUri);
BitmapRegionDecoder decoder = BitmapRegionDecoder.newInstance(is, false);
final int width = decoder.getWidth();
final int height = decoder.getHeight();
if (exifRotation != 0) {
// Adjust crop area to account for image rotation
Matrix matrix = new Matrix();
matrix.setRotate(-exifRotation);
RectF adjusted = new RectF();
matrix.mapRect(adjusted, new RectF(rect));
// Adjust to account for origin at 0,0
adjusted.offset(adjusted.left < 0 ? width : 0, adjusted.top < 0 ? height : 0);
rect =
new Rect(
(int) adjusted.left,
(int) adjusted.top,
(int) adjusted.right,
(int) adjusted.bottom);
}
try {
croppedImage = decoder.decodeRegion(rect, new BitmapFactory.Options());
} catch (IllegalArgumentException e) {
// Rethrow with some extra information
throw new IllegalArgumentException(
"Rectangle "
+ rect
+ " is outside of the image ("
+ width
+ ","
+ height
+ ","
+ exifRotation
+ ")",
e);
}
} catch (IOException e) {
Log.e("Error cropping image: " + e.getMessage(), e);
finish();
} catch (OutOfMemoryError e) {
Log.e("OOM cropping image: " + e.getMessage(), e);
setResultException(e);
} finally {
CropUtil.closeSilently(is);
}
return croppedImage;
}
@Override
public BitmapRegionDecoder run(JobContext jc) {
if (!prepareInputFile(jc)) return null;
BitmapRegionDecoder decoder =
DecodeUtils.createBitmapRegionDecoder(jc, mFileDescriptor.getFileDescriptor(), false);
mWidth = decoder.getWidth();
mHeight = decoder.getHeight();
return decoder;
}
private void updateTileProvider(ImageEntry entry) {
Bitmap screenNail = entry.screenNail;
BitmapRegionDecoder fullImage = entry.fullImage;
if (screenNail != null) {
if (fullImage != null) {
mTileProvider.setBackupImage(screenNail, fullImage.getWidth(), fullImage.getHeight());
mTileProvider.setRegionDecoder(fullImage);
} else {
int width = screenNail.getWidth();
int height = screenNail.getHeight();
mTileProvider.setBackupImage(screenNail, width, height);
}
} else {
mTileProvider.clear();
if (entry.failToLoad) mTileProvider.setFailedToLoad();
}
}
boolean decodeJPEGAndAnalyze(Context context, CalibrationEntries calibrationEntries) {
boolean result = false;
BitmapFactory.Options opt = new BitmapFactory.Options();
opt.inPreferQualityOverSpeed = true;
BitmapRegionDecoder brd;
byte[] data = mData;
try {
brd = BitmapRegionDecoder.newInstance(data, 0, data.length, false);
Rect rect;
rect = new Rect(0, 0, brd.getWidth(), brd.getHeight());
Bitmap bitmap = brd.decodeRegion(rect, opt);
MatBitmapHolder mRgbaMatHolder = new MatBitmapHolder(bitmap);
Mat rgbaMat = mRgbaMatHolder.pin();
Mat grayData = new Mat();
Imgproc.cvtColor(rgbaMat, grayData, Imgproc.COLOR_RGB2GRAY, 1);
Mat centersCalibCircles = new Mat();
Size patternSize = CalibrationEntries.Pattern_ASYMMETRIC_CIRCLES_GRID_SIZE;
Size imageSize = new Size(grayData.cols(), grayData.rows());
boolean patternWasFound =
Calib3d.findCirclesGridDefault(
grayData, patternSize, centersCalibCircles, Calib3d.CALIB_CB_ASYMMETRIC_GRID);
if (patternWasFound && this.orientation != null) {
int addedIdx = calibrationEntries.addEntry(this.orientation, centersCalibCircles);
if (addedIdx >= 0) {
Log.d(
"CALIB",
String.format(
"PictureCapture: Added calibration entry at %d tot: %d",
addedIdx, calibrationEntries.getNumEntries()));
if (calibrationEntries.getNewlyAdded() > 5) {
List<Mat> imagePoints = calibrationEntries.getPoints();
List<Mat> objectPoints =
calibrationEntries.getObjectPointsAsymmentricList(imagePoints.size());
if (CalibrationEntries.isEnoughCalibrationPoints(imagePoints.size())) {
calibrationEntries.resetNewlyAdded();
CameraCalibrationData cameraCalibrationData = new CameraCalibrationData();
List<Mat> rvecs = new Vector<Mat>(imagePoints.size());
List<Mat> tvecs = new Vector<Mat>(imagePoints.size());
int flags = 0;
flags |= Calib3d.CALIB_FIX_K4 | Calib3d.CALIB_FIX_K5;
Log.d("CALIB", String.format("PictureCapture: Calling Calib3d.calibrateCamera"));
Mat K = new Mat();
Mat kdist = new Mat();
double rms =
Calib3d.calibrateCamera(
objectPoints, imagePoints, imageSize, K, kdist, rvecs, tvecs, flags);
double[] Karray = new double[9];
double[] distcoeffs_array = new double[5];
K.get(0, 0, Karray);
kdist.get(0, 0, distcoeffs_array);
cameraCalibrationData.setData(
grayData.cols(), grayData.rows(), Karray, distcoeffs_array, rms);
Log.d(
"CALIB",
String.format(
"PictureCapture: Calibration data: %s",
cameraCalibrationData.formatCalibrationDataString()));
calibrationEntries.setCalibrationData(cameraCalibrationData);
result = true;
}
}
}
}
// mRightBitmap = brd.decodeRegion(rect, opt);
rect = new Rect(brd.getWidth() - brd.getWidth() / 3, 0, brd.getWidth(), brd.getHeight());
// mLeftBitmap = brd.decodeRegion(rect, opt);
mRgbaMatHolder.unpin(rgbaMat);
} catch (IOException e) {
XLog.e("Region decoder doesn't want to cooperate", e);
}
return result;
}