What is spatial domain?

The spatial domain refers to the representation of data in terms of its spatial coordinates, focusing on the physical arrangement of points, pixels, or samples in space. In image processing, for instance, it involves analyzing and manipulating images based on their pixel values directly, allowing for operations like filtering and enhancement. This contrasts with the frequency domain, which represents data in terms of its frequency components. Understanding the spatial domain is essential for tasks involving visual data interpretation and manipulation.