Dogs are red-green color-blind. Hidden with humans, the dog sees a more clear and less detailed world. The peripheral vision is that that is not the right one. Dogs excel at seeing at night and observing moving objects. Figure 1 shows a bush and can be seen. (the electromagnetic spectrum).
What dogs see is the same as what people see who are color blind, in other words, they are red-green color-blind. (in humans, this occurs among 4% of the American population). There are two different types of cones in the three different types. (light sensitive cells include cones and rods).
See detail of Visual acuity.
Because dogs do not have fovea, that is theirs for the details up to and including the meal.
See the night
Dogs can see much better at night than humans for two reasons:
They have seen many more rods.
Dogs have a Tapetum Lucidum
This is a reflective system that reflects the light reflecting through the retina (this creates the somewhat ghostly glowing eyes of the dog at night).
Sensitivity to observe movement
Dogs are much better able to observe moving objects.
Depth perception and Field of View.
Figure 2 shows the visual field of man and of a dog. Because the eyes are placed humanly, there is an overlap in the visual field of each eye, of 140 degrees; in the dog this overlap is about 100 degrees.
With regard to box, it is only the distance to their network.