Can get image from PHAsset of library

You need to use requestImageForAsset to get UIImage. You can get image like this way

func qb_imagePickerController(imagePickerController: QBImagePickerController!, didFinishPickingAssets assets: [AnyObject]!) {


    let requestOptions = PHImageRequestOptions()
    requestOptions.resizeMode = PHImageRequestOptionsResizeMode.Exact
    requestOptions.deliveryMode = PHImageRequestOptionsDeliveryMode.HighQualityFormat
    // this one is key
    requestOptions.synchronous = true

    for asset in assets
    {
        if (asset.mediaType == PHAssetMediaType.Image)
        {

            PHImageManager.defaultManager().requestImageForAsset(asset as! PHAsset, targetSize: PHImageManagerMaximumSize, contentMode: PHImageContentMode.Default, options: requestOptions, resultHandler: { (pickedImage, info) in

                self.yourImageview.image = pickedImage // you can get image like this way

            })

        }
    }
    imagePickerController.dismissViewControllerAnimated(true, completion: nil)
}