Laplacian pyramid

A Laplacian pyramid is a technique in image processing that helps analyze and compress images by breaking them down into different levels of detail. It involves creating a series of blurred, scaled-down versions of the original image (a Gaussian pyramid), then subtracting these from their finer counterparts to highlight the details at each level. The result is a set of images that capture different layers of detail, making it easier to manipulate or compress the original image efficiently. Think of it as peeling an onion into layers, where each layer shows specific aspects of the image’s structure.