Re: [android-developers] Re: Android camera orientation problem
On Tue, Oct 23, 2012 at 09:50:31PM -0700, Adam Ratana wrote: I've just spent quite a bit of my spare time working on implementing a portrait mode activity option for the camera preview - to answer Spooky's question, the main reason one might do this is because it goes well with the UI/UX of the application (specifically the other activities which share a common UI), and the application for the camera activity is augmented reality, Ahhh, yes. Good point. I hadn't thought about that. Later, --jim -- THE SCORE: ME: 2 CANCER: 0 73 DE N5IAL (/4) // North American Hunting Club Member #70781171 ICBM/Hurr.: 30.44406N 86.59909 // Running Mac OS X Lion W Seen in alt.sysadmin.recovery: Priceless; that's better than telling him to use the Read Manual command with the Real Fast option. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Android camera orientation problem
On Mon, Oct 22, 2012 at 09:53:12PM -0700, Haris wrote: I don't know why it's not worked with me. If I set orientation as portrait in manifest file I am getting 90 degree rotated image in my preview. But in the case of landscape orientation I am getting normal image in my preview while my phone orientation is portrait I know it is 90 degree rotated from landscape , and while saving or drawing to a canvas I am getting 90 degree rotated image. For this issue I just rotated my image 90 degree backward. I thought it is better to set the orientation correctly rather than rotating the image after capture. I'm assuming that you have some specific reason for wanting to use portrait, where normal camera orientation is landscape? In every camera I've seen, used, or read about, the normal orientation is landscape. If you want portrait, you have to rotate the camera. I recall reading somewhere in the developer's guide docs on the camera that (as with 35mm and DSLR cameras) the Android camera's normal orientation is landscape. You CAN change that in java, if you want to, though (but why would you? if the user wants to rotate the camera for a portrait-oriented shot, they'll just rotate the device) Later, --jim -- THE SCORE: ME: 2 CANCER: 0 73 DE N5IAL (/4) // North American Hunting Club Member #70781171 ICBM/Hurr.: 30.44406N 86.59909W // Running Mac OS X Lion Now what *you* need is a proper pint of porter poured in a proper pewter porter pot.. --Peter Dalgaard in alt.sysadmin.recovery -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Android camera orientation problem
Haris, take a look a this: http://developer.android.com/reference/android/hardware/Camera.html#setDisplayOrientation(int) This is for API 8 (2.2+) devices. I've found that there's no reliable way to guarantee this to work on 2.1 devices by setting the camera parameters the way you are now, some just won't do it. I've just spent quite a bit of my spare time working on implementing a portrait mode activity option for the camera preview - to answer Spooky's question, the main reason one might do this is because it goes well with the UI/UX of the application (specifically the other activities which share a common UI), and the application for the camera activity is augmented reality, and for most devices that I've had experience with, the sensors seem to be most accurate when the phone is held in portrait - though this can clearly vary. It also was desired to have a working portrait mode version of the camera activity, instead of forcing the user to then change the way they were holding the device. Instagram is one massively popular application which does this as well (or at least, appears to do so), and I think it works well with their UI. You can of course, take advantage of the above method to simply rotate the preview depending on the current orientation of the device - either portrait or landscape, and indeed have different UIs for either scenario if you wish. Of course then choosing the optimal preview size for your orientation, taking into account status bars or full screen, etc, can then be tricky and yield different results for each. The default camera app seems to rotate it's UI elements which is a pretty neat solution. Rotating any preview frames or shots is the least of the worries here, that's relatively simple to do. I plan on cleaning up and open sourcing a proof of concept project I built which does a bunch of things, including dealing with having a camera orientation the same as the device orientation, and rotating it when the device rotates, etc, since this seems a really painful thing. I'll post back here when it's up, probably within a month. On Tuesday, October 23, 2012 12:28:46 PM UTC-4, Spooky wrote: I'm assuming that you have some specific reason for wanting to use portrait, where normal camera orientation is landscape? In every camera I've seen, used, or read about, the normal orientation is landscape. If you want portrait, you have to rotate the camera. I recall reading somewhere in the developer's guide docs on the camera that (as with 35mm and DSLR cameras) the Android camera's normal orientation is landscape. You CAN change that in java, if you want to, though (but why would you? if the user wants to rotate the camera for a portrait-oriented shot, they'll just rotate the device) Later, --jim -- THE SCORE: ME: 2 CANCER: 0 73 DE N5IAL (/4) // North American Hunting Club Member #70781171 ICBM/Hurr.: 30.44406N 86.59909W // Running Mac OS X Lion Now what *you* need is a proper pint of porter poured in a proper pewter porter pot.. --Peter Dalgaard in alt.sysadmin.recovery -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Android camera orientation problem
Hi thanks all for your replays.. Yesterday I have checked some application from google play like pudding camera etc. and it's working perfectly. Even if I access the default camera from my application I am getting normal preview but while saving it is rotated. The reason why I need to use in portrait mode is that after capture I have to do some image processing algorithms on the image using opencv, and on the JNI part it seems that height of the image became width and width became height and all these because of the rotation. To avoid that confusion, -I know that not a big issue I just need to rotate the image 90 degree backward- I thought it is better to modify the camera orientation . Can any one give me a working source code for changing the camera orientation, may be it's my coding problem Thanks Haris On Wednesday, 24 October 2012 10:20:31 UTC+5:30, Adam Ratana wrote: Haris, take a look a this: http://developer.android.com/reference/android/hardware/Camera.html#setDisplayOrientation(int) This is for API 8 (2.2+) devices. I've found that there's no reliable way to guarantee this to work on 2.1 devices by setting the camera parameters the way you are now, some just won't do it. I've just spent quite a bit of my spare time working on implementing a portrait mode activity option for the camera preview - to answer Spooky's question, the main reason one might do this is because it goes well with the UI/UX of the application (specifically the other activities which share a common UI), and the application for the camera activity is augmented reality, and for most devices that I've had experience with, the sensors seem to be most accurate when the phone is held in portrait - though this can clearly vary. It also was desired to have a working portrait mode version of the camera activity, instead of forcing the user to then change the way they were holding the device. Instagram is one massively popular application which does this as well (or at least, appears to do so), and I think it works well with their UI. You can of course, take advantage of the above method to simply rotate the preview depending on the current orientation of the device - either portrait or landscape, and indeed have different UIs for either scenario if you wish. Of course then choosing the optimal preview size for your orientation, taking into account status bars or full screen, etc, can then be tricky and yield different results for each. The default camera app seems to rotate it's UI elements which is a pretty neat solution. Rotating any preview frames or shots is the least of the worries here, that's relatively simple to do. I plan on cleaning up and open sourcing a proof of concept project I built which does a bunch of things, including dealing with having a camera orientation the same as the device orientation, and rotating it when the device rotates, etc, since this seems a really painful thing. I'll post back here when it's up, probably within a month. On Tuesday, October 23, 2012 12:28:46 PM UTC-4, Spooky wrote: I'm assuming that you have some specific reason for wanting to use portrait, where normal camera orientation is landscape? In every camera I've seen, used, or read about, the normal orientation is landscape. If you want portrait, you have to rotate the camera. I recall reading somewhere in the developer's guide docs on the camera that (as with 35mm and DSLR cameras) the Android camera's normal orientation is landscape. You CAN change that in java, if you want to, though (but why would you? if the user wants to rotate the camera for a portrait-oriented shot, they'll just rotate the device) Later, --jim -- THE SCORE: ME: 2 CANCER: 0 73 DE N5IAL (/4) // North American Hunting Club Member #70781171 ICBM/Hurr.: 30.44406N 86.59909W // Running Mac OS X Lion Now what *you* need is a proper pint of porter poured in a proper pewter porter pot.. --Peter Dalgaard in alt.sysadmin.recovery -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Android camera orientation problem
Hi thanks all for your replays.. Yesterday I have checked some application from google play like pudding camera etc. and it's working perfectly. Even if I access the default camera from my application I am getting normal preview but while saving it is rotated. The reason why I need to use in portrait mode is that after capture I have to do some image processing algorithms on the image using opencv, and on the JNI part it seems that height of the image became width and width became height and all these because of the rotation. To avoid that confusion, -I know that not a big issue I just need to rotate the image 90 degree backward- I thought it is better to modify the camera orientation . Can any one give me a working source code for changing the camera orientation, may be it's my coding problem Thanks Haris On Wednesday, 24 October 2012 10:20:31 UTC+5:30, Adam Ratana wrote: Haris, take a look a this: http://developer.android.com/reference/android/hardware/Camera.html#setDisplayOrientation(int) This is for API 8 (2.2+) devices. I've found that there's no reliable way to guarantee this to work on 2.1 devices by setting the camera parameters the way you are now, some just won't do it. I've just spent quite a bit of my spare time working on implementing a portrait mode activity option for the camera preview - to answer Spooky's question, the main reason one might do this is because it goes well with the UI/UX of the application (specifically the other activities which share a common UI), and the application for the camera activity is augmented reality, and for most devices that I've had experience with, the sensors seem to be most accurate when the phone is held in portrait - though this can clearly vary. It also was desired to have a working portrait mode version of the camera activity, instead of forcing the user to then change the way they were holding the device. Instagram is one massively popular application which does this as well (or at least, appears to do so), and I think it works well with their UI. You can of course, take advantage of the above method to simply rotate the preview depending on the current orientation of the device - either portrait or landscape, and indeed have different UIs for either scenario if you wish. Of course then choosing the optimal preview size for your orientation, taking into account status bars or full screen, etc, can then be tricky and yield different results for each. The default camera app seems to rotate it's UI elements which is a pretty neat solution. Rotating any preview frames or shots is the least of the worries here, that's relatively simple to do. I plan on cleaning up and open sourcing a proof of concept project I built which does a bunch of things, including dealing with having a camera orientation the same as the device orientation, and rotating it when the device rotates, etc, since this seems a really painful thing. I'll post back here when it's up, probably within a month. On Tuesday, October 23, 2012 12:28:46 PM UTC-4, Spooky wrote: I'm assuming that you have some specific reason for wanting to use portrait, where normal camera orientation is landscape? In every camera I've seen, used, or read about, the normal orientation is landscape. If you want portrait, you have to rotate the camera. I recall reading somewhere in the developer's guide docs on the camera that (as with 35mm and DSLR cameras) the Android camera's normal orientation is landscape. You CAN change that in java, if you want to, though (but why would you? if the user wants to rotate the camera for a portrait-oriented shot, they'll just rotate the device) Later, --jim -- THE SCORE: ME: 2 CANCER: 0 73 DE N5IAL (/4) // North American Hunting Club Member #70781171 ICBM/Hurr.: 30.44406N 86.59909W // Running Mac OS X Lion Now what *you* need is a proper pint of porter poured in a proper pewter porter pot.. --Peter Dalgaard in alt.sysadmin.recovery -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Android camera orientation problem
Haris, check the link I provided, this is code you can call which will make
the camera orientation the same as the activity orientation. for instance
if you set the activity orientation to portrait, calling the method will
also rotate the camera preview --
http://developer.android.com/**reference/android/hardware/**Camera.html#**
setDisplayOrientation(int)http://developer.android.com/reference/android/hardware/Camera.html#setDisplayOrientation(int)
they provide some code here. Note that any preview frames will not be
rotate, though.
If you want to make the camera image show in the same orientation as the
display, you can use the following code.
public static void setCameraDisplayOrientation(Activity activity,
int cameraId, android.hardware.Camera camera) {
android.hardware.Camera.CameraInfo info =
new android.hardware.Camera.CameraInfo();
android.hardware.Camera.getCameraInfo(cameraId, info);
int rotation = activity.getWindowManager().getDefaultDisplay()
.getRotation();
int degrees = 0;
switch (rotation) {
case Surface.ROTATION_0: degrees = 0; break;
case Surface.ROTATION_90: degrees = 90; break;
case Surface.ROTATION_180: degrees = 180; break;
case Surface.ROTATION_270: degrees = 270; break;
}
int result;
if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
result = (info.orientation + degrees) % 360;
result = (360 - result) % 360; // compensate the mirror
} else { // back-facing
result = (info.orientation - degrees + 360) % 360;
}
camera.setDisplayOrientation(result);
}
On Wed, Oct 24, 2012 at 1:46 AM, Haris haris...@gmail.com wrote:
Hi thanks all for your replays..
Yesterday I have checked some application from google play like
pudding camera etc. and it's working perfectly. Even if I access the
default camera from my application I am getting normal preview but while
saving it is rotated. The reason why I need to use in portrait mode is that
after capture I have to do some image processing algorithms on the image
using opencv, and on the JNI part it seems that height of the image
became width and width became height and all these because of the rotation.
To avoid that confusion, -I know that not a big issue I just need to rotate
the image 90 degree backward- I thought it is better to modify the camera
orientation . Can any one give me a working source code for changing the
camera orientation, may be it's my coding problem
Thanks
Haris
On Wednesday, 24 October 2012 10:20:31 UTC+5:30, Adam Ratana wrote:
Haris, take a look a this:
http://developer.android.com/**reference/android/hardware/**Camera.html#*
*setDisplayOrientation(int)http://developer.android.com/reference/android/hardware/Camera.html#setDisplayOrientation(int)
This is for API 8 (2.2+) devices. I've found that there's no reliable
way to guarantee this to work on 2.1 devices by setting the camera
parameters the way you are now, some just won't do it.
I've just spent quite a bit of my spare time working on implementing a
portrait mode activity option for the camera preview - to answer Spooky's
question, the main reason one might do this is because it goes well with
the UI/UX of the application (specifically the other activities which share
a common UI), and the application for the camera activity is augmented
reality, and for most devices that I've had experience with, the sensors
seem to be most accurate when the phone is held in portrait - though this
can clearly vary. It also was desired to have a working portrait mode
version of the camera activity, instead of forcing the user to then change
the way they were holding the device. Instagram is one massively popular
application which does this as well (or at least, appears to do so), and I
think it works well with their UI.
You can of course, take advantage of the above method to simply rotate
the preview depending on the current orientation of the device - either
portrait or landscape, and indeed have different UIs for either scenario if
you wish. Of course then choosing the optimal preview size for your
orientation, taking into account status bars or full screen, etc, can then
be tricky and yield different results for each. The default camera app
seems to rotate it's UI elements which is a pretty neat solution. Rotating
any preview frames or shots is the least of the worries here, that's
relatively simple to do.
I plan on cleaning up and open sourcing a proof of concept project I
built which does a bunch of things, including dealing with having a camera
orientation the same as the device orientation, and rotating it when the
device rotates, etc, since this seems a really painful thing. I'll post
back here when it's up, probably within a month.
On Tuesday, October 23, 2012 12:28:46 PM UTC-4, Spooky wrote:
I'm assuming that you have
