Most online editing services used to categorize images according to their background difficulty. What we have seen above images background difficulties refer as simple, medium, complex and super complex categories. When you are in any online service, it is better to understand your images difficulties in your own. Because they have almost different price range. For images that are easy to fix background and don’t take much time, they are categorized as simple images. But images that include too many complex shape and edges and take time to perfect editing, are considered as complex images. If you have bulk images for which you need background removal service, you should ask the provider to give hints of images which are simple and super complex.