Reputation: 1027
When I capture Image I get the captured image rotated.
I am setting the rotation on Camera Parameters object.
Camera.Parameters params = mCamera.getParameters();
params.setRotation(90);
But its not working. I have tried setting the rotation angle to 0, 90, 270 and 360, but there is no change in the captured image rotation.
Device : Redmi Note 5.
Working fine for other devices, i.e. setting a rotation angle of 90 degrees makes the image rotated in original orientation.
The least I expect is at least there must be a rotation change when I change the value of rotation angle to different degrees. But that doesn't seem to have any impact.
I have done
mCamera.setDisplayOrientation(rotate);
It changes the camera preview rotation but doesn't change the captured image rotation.
Also, I have seen the following posts, tried solutions but haven't found any working solution.
Android camera unexplainable rotation on capture for some devices (not in EXIF)
Why does an image captured using camera intent gets rotated on some devices on Android?
setRotation(90) to take picture in portrait mode does not work on samsung devices
Android - Camera preview is sideways
Force a camera to always open in portrait mode in android
Android Camera in Portrait on SurfaceView
Android - Capture photo
Force portrait mode in camera
Upvotes: 4
Views: 791
Reputation: 712
I am facing this same issue. i have try this one and work fine for me.
private CameraSource.PictureCallback mPicture = new CameraSource.PictureCallback() {
@Override
public void onPictureTaken(byte[] bytes) {
int orientation = Exif.getOrientation(bytes);
Bitmap bitmap = BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
switch(orientation) {
case 90:
bitmapPicture= rotateImage(bitmap, 90);
break;
case 180:
bitmapPicture= rotateImage(bitmap, 180);
break;
case 270:
bitmapPicture= rotateImage(bitmap, 270);
break;
case 0:
// if orientation is zero we don't need to rotate this
default:
break;
}
//write your code here to save bitmap
}
}
public static Bitmap rotateImage(Bitmap source, float angle) {
Matrix matrix = new Matrix();
matrix.postRotate(angle);
return Bitmap.createBitmap(source, 0, 0, source.getWidth(), source.getHeight(), matrix, true);
}
Below class is used to get orientation from byte[] data.
public class Exif {
private static final String TAG = "CameraExif";
// Returns the degrees in clockwise. Values are 0, 90, 180, or 270.
public static int getOrientation(byte[] jpeg) {
if (jpeg == null) {
return 0;
}
int offset = 0;
int length = 0;
// ISO/IEC 10918-1:1993(E)
while (offset + 3 < jpeg.length && (jpeg[offset++] & 0xFF) == 0xFF) {
int marker = jpeg[offset] & 0xFF;
// Check if the marker is a padding.
if (marker == 0xFF) {
continue;
}
offset++;
// Check if the marker is SOI or TEM.
if (marker == 0xD8 || marker == 0x01) {
continue;
}
// Check if the marker is EOI or SOS.
if (marker == 0xD9 || marker == 0xDA) {
break;
}
// Get the length and check if it is reasonable.
length = pack(jpeg, offset, 2, false);
if (length < 2 || offset + length > jpeg.length) {
Log.e(TAG, "Invalid length");
return 0;
}
// Break if the marker is EXIF in APP1.
if (marker == 0xE1 && length >= 8 &&
pack(jpeg, offset + 2, 4, false) == 0x45786966 &&
pack(jpeg, offset + 6, 2, false) == 0) {
offset += 8;
length -= 8;
break;
}
// Skip other markers.
offset += length;
length = 0;
}
// JEITA CP-3451 Exif Version 2.2
if (length > 8) {
// Identify the byte order.
int tag = pack(jpeg, offset, 4, false);
if (tag != 0x49492A00 && tag != 0x4D4D002A) {
Log.e(TAG, "Invalid byte order");
return 0;
}
boolean littleEndian = (tag == 0x49492A00);
// Get the offset and check if it is reasonable.
int count = pack(jpeg, offset + 4, 4, littleEndian) + 2;
if (count < 10 || count > length) {
Log.e(TAG, "Invalid offset");
return 0;
}
offset += count;
length -= count;
// Get the count and go through all the elements.
count = pack(jpeg, offset - 2, 2, littleEndian);
while (count-- > 0 && length >= 12) {
// Get the tag and check if it is orientation.
tag = pack(jpeg, offset, 2, littleEndian);
if (tag == 0x0112) {
// We do not really care about type and count, do we?
int orientation = pack(jpeg, offset + 8, 2, littleEndian);
switch (orientation) {
case 1:
return 0;
case 3:
return 180;
case 6:
return 90;
case 8:
return 270;
}
Log.i(TAG, "Unsupported orientation");
return 0;
}
offset += 12;
length -= 12;
}
}
Log.i(TAG, "Orientation not found");
return 0;
}
private static int pack(byte[] bytes, int offset, int length, boolean littleEndian) {
int step = 1;
if (littleEndian) {
offset += length - 1;
step = -1;
}
int value = 0;
while (length-- > 0) {
value = (value << 8) | (bytes[offset] & 0xFF);
offset += step;
}
return value;
}
}
i am facing this issue into few device like Vivo, MI. Hear i have spend two days after that i have resolved this issue. Thank you.
Upvotes: 0