Bezel compensation
On video walls, bezels (also known as mullions), break up the continuous appearance of content that can be scaled across multiple displays. With bezel compensation, we can compensate for the width of the display bezels. Bezel compensation is optional.
With bezel compensation, an image that spans multiple displays will appear normal, as if it is located "behind" the bezels. Typically bezel compensation is enabled for most applications, where the visual appearance is important and it doesn't matter if small parts of the content may be hidden behind the bezels.
However, for applications where the ability to see every pixel is critical, bezel compensation can be left out so that every pixel is viewable and no content is ever hidden behind the bezels.