iOS - UIImageView - how to handle UIImage image orientation

ios uiimageview uiimage orientation
Martin Pilch picture Martin Pilch · Jan 18, 2012 · Viewed 104.6k times · Source

Is it possible to setup UIImageView to handle image orientation? When I set the UIImageView to image with orientation RIGHT (it is photo from camera roll), the image is rotated to right, but I want to show it in proper orientation, as it was taken.

I know I can rotate image data but it is possible to do it more elegant?

Answer

Tommy picture Tommy · Jan 18, 2012

If I understand, what you want to do is disregard the orientation of the UIImage? If so then you could do this:

UIImage *originalImage = [... whatever ...];

UIImage *imageToDisplay =
     [UIImage imageWithCGImage:[originalImage CGImage]
              scale:[originalImage scale]
              orientation: UIImageOrientationUp];

So you're creating a new UIImage with the same pixel data as the original (referenced via its CGImage property) but you're specifying an orientation that doesn't rotate the data.

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