How do I fix a wrong orientation of an image ?

Problem: My image appears upside down / flipped / facing the wrong way / I have incorrect/missing axis orientation
Explanation: Slicer presents and interacts with images in physical space, which differs from the way the image is stored by a separate transform that defines how large the voxels are and how the image is oriented in space, e.g. which side is left or right. This information is stored in the image header, and different image file formats have different ways of storing this information. If Slicer supports the image format, it should read the information in the header and display the image correctly. If the image appears upside down or with distorted aspect ratio etc, then the image header information is either missing or incorrect.
Fix: You can correct the voxel dimensions and the image origin in the Info tab of the Volumes module, and you can reorient images via the Transforms module. Reorientation however will work only if the

Projects:SlicerFAQ:VoxelSizeFix