Canvas photo wraps
When your photo has been printed on the canvas, some dealers can deliver it
rolled. But normally you will have it wrapped around some kind of wooden bars.
Basically there are two kinds of wraps: Museum Wraps and Gallery Wraps.
Museum wrap
Museum wrap is the way the museums normally have their paintings hanging on the
wall. The photo is printed on the canvas with a white area is added around it. When
it is then stretched around the bars, the photo itself fills the front, while the
sides and the back is just plain white canvas.
Some photo developers offer a black (or some complementary color to the picture
or the interior) instead of the white one. Depending on the colors of the canvas
photo, another color than white could be a good idea.

Museum wrap
The museum wrap is a good solution, if you are planning to frame your canvas photo.
And if important parts of the photo are near the edges, it is also a wise choice.
It is also normally the wrap to choose, if your canvas photo is a reproduction of
an original painting.
Gallery wrap
The big difference between the museum wrap and the gallery wrap is that in a gallery
wrapped canvas, there is not added an extra white area. Instead the border of the canvas
photo is wrapped around the edges, so the print extends around the sides of the
canvas.
Technically this effect can be gained in different ways. Sometimes the border of
the photo is just used, other times the border of the photo is mirrored for the
edges.

Gallery wrap (with border on the side and with mirrored border respectively)
The gallery wrap is perfect, if you are planning to hang your canvas photo without
a frame. Just remember that it works best, if there is no important part of the
photo in the edge part.
On the other hand if you are planning to frame your canvas photo, some of the photo
will not be shown, if you chose a gallery wrap.