Image Orientation, as with any orientation, deals with how an object — specifically an image in this case — is positioned or rotated relative to its environment. This orientation is typically determined by which length of the image is longer than the other, often referred to as “Landscape” or “Portrait.” In the case of a square image, where the length and width are equal, an orientation of portrait or landscape may not be applicable.
Images that are taller than they are wide — those with a tall aspect ratio — are typically referred to as having a “portrait orientation.” Portrait orientation is more suited to portrait photography, as it is the most natural orientation to capture a person’s head and shoulders. An example of a portrait-oriented image of a dog can be found above and to the right.
Landscape OrientationLandscape-oriented images, on the other hand, are those which are wider than they are tall — having a wide aspect ratio. When capturing a wide horizon or other distant landscape feature, it is often most desirable and appropriate to have a wider canvas than one that is tall. An example of a landscape-oriented image can be found to the right.
There may be cases when a landscape photograph is more suited to a portrait-oriented format, and vice versa, but the orientation names will remain unchanged regardless of the format’s application.