diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/helpers.php | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/lib/helpers.php b/lib/helpers.php index c606dab..3939708 100644 --- a/lib/helpers.php +++ b/lib/helpers.php @@ -323,3 +323,26 @@ function validate_photo(&$file) { return $e->getMessage(); } } + +// Reads the exif rotation data and actually rotates the photo. +// Only does anything if the exif library is loaded, otherwise is a noop. +function correct_photo_rotation($filename) { + if(class_exists('IMagick')) { + $image = new IMagick($filename); + $orientation = $image->getImageOrientation(); + switch($orientation) { + case IMagick::ORIENTATION_BOTTOMRIGHT: + $image->rotateImage(new ImagickPixel('#00000000'), 180); + break; + case IMagick::ORIENTATION_RIGHTTOP: + $image->rotateImage(new ImagickPixel('#00000000'), 90); + break; + case IMagick::ORIENTATION_LEFTBOTTOM: + $image->rotateImage(new ImagickPixel('#00000000'), -90); + break; + } + $image->setImageOrientation(IMagick::ORIENTATION_TOPLEFT); + $image->writeImage($filename); + } +} + |