CGImagePropertyOrientation.left
The encoded image data is rotated 90° clockwise from the image’s intended display orientation.
Declaration
case leftDiscussion
The (x,y) pixel coordinates of the origin point (0,0) represent the bottom row and leftmost column, respectively. Pixel (x,y) positions increase bottom-to-top, left-to-right.
If an image is encoded with this orientation, then displayed by software unaware of orientation metadata, the image appears to be rotated 90° clockwise. (That is, to present the image in its intended orientation, you must rotate 90° counter-clockwise.)
[Image]