If you find that your uploaded images are not rotated as you would expect, you probably are experiencing a problem with the EXIF orientation of your image.
Digital Cameras with orientation sensors allow auto-rotation of portrait images. The output of this sensor is used to set the EXIF orientation flag in the image file's metatdata. Unfortunately, support for EXIF orientation flag is not universal.
The following programs are known to handle the EXIF orientation flag:
- Picassa Photo Viewer
- OS X Preview
The following programs do not handle the EXIF orientation flag correctly:
- Windows Picture and Fax Viewer
- Windows Photo Viewer
- Microsoft Office Picture Manager
- MS Paint
The image handling software on ArtSlant was recently changed to handle the EXIF orientation flag correctly and therefore some images may be displaying rotated differently than when they were originally uploaded. Please change the orientation of these images and re-upload them.
Viewing EXIF information and rotating images
On the MAC you can view the current EXIF and TIFF orientation information of an image using Preview. Select Tools/Inspector and you will see both EXIF and TIFF extended information for your image. Preview will also let you rotate your image correctly.
On Windows, we suggest you use Photoshop or the (free) Picasa Photo Viewer (http://picasa.google.com/) to view your images correctly. Photoshop will strip all EXIF information from an image when you use Save For Web & Devices (see Metadata dropdown). The Picasa Photo Editor will also rotate your images correctly.
For more information please see: