I'm writing an Android application that uses the camera. I'm setting camera display orientation to 90, my activity is in a portrait orientation:
camera.setDisplayOrientation(90);
I'm getting a well oriented preview picture, but the resulting image is rotated to -90 degrees (counter clockwise) and
exif.getAttribute(ExifInterface.TAG_ORIENTATION)
returns ORIENTATION_NORMAL
Is it expected behavior? Should I rotate resulted image after the capture?
Device - Nexus S, API - 10
Try this
try {
File f = new File(imagePath);
ExifInterface exif = new ExifInterface(f.getPath());
int orientation = exif.getAttributeInt(
ExifInterface.TAG_ORIENTATION,
ExifInterface.ORIENTATION_NORMAL);
int angle = 0;
if (orientation == ExifInterface.ORIENTATION_ROTATE_90) {
angle = 90;
} else if (orientation == ExifInterface.ORIENTATION_ROTATE_180) {
angle = 180;
} else if (orientation == ExifInterface.ORIENTATION_ROTATE_270) {
angle = 270;
}
Matrix mat = new Matrix();
mat.postRotate(angle);
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 2;
Bitmap bmp = BitmapFactory.decodeStream(new FileInputStream(f),
null, options);
bitmap = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(),
bmp.getHeight(), mat, true);
ByteArrayOutputStream outstudentstreamOutputStream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100,
outstudentstreamOutputStream);
imageView.setImageBitmap(bitmap);
} catch (IOException e) {
Log.w("TAG", "-- Error in setting image");
} catch (OutOfMemoryError oom) {
Log.w("TAG", "-- OOM Error in setting image");
}
It will work