Why does rotating my phone to take a picture not rotate the photo?

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If the phone is upside down, why does the picture come out right-side up, instead of upside down?

Edit: changed sideways to upside down; better example of my question

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Anonymous 0 Comments

Because the camera and the screen are indexed to each other; the bottom of the camera captures the bottom of the image which is shown on the bottom of the screen. As you rotate the phone clockwise (for example), the bottom of the camera rotates to the left and upwards. That means the bottom of the image is now at that angle as well. However, the phone screen is also at that angle, so it cancels out the change.

With regard to landscape and portrait modes, the camera is programmed to understand that when the camera is held sideways, it should rotate the resulting image by 90 degrees so that it comes out “wide” rather than “tall.”

You can trick this if you take a picture at a weird angle; for instance, trying to take a picture straight downwards, if you tilt it one way or another, you’ll see the camera try to orient which side is down. I’ve taken a number of pictures which came out “upside down” because the phone was tilted too far “backwards” and the camera thought the far side of the phone was “down.”

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