OpenCV with Python By Example

What is a dense feature detector?

In order to extract a meaningful amount of information from the images, we need to make sure our feature extractor extracts features from all the parts of a given image. Consider the following image:

If you extract features using a feature extractor, it will look like this:

If you use Dense detector, it will look like this:

We can control the density as well. Let's make it sparse:

By doing this, we can make sure that every ...