OpenCV By Example

Naive background subtraction

Let's start the background subtraction discussion from the beginning. What does a background subtraction process look like? Consider the following image:

The preceding image represents the background scene. Now, let's introduce a new object into this scene:

As shown in the preceding image, there is a new object in the scene. So, if we compute the difference between this image and our background model, you should be able to identify the location of the TV remote:

The overall process looks like this:

Does it work well?

There's ...