Develop a simple image classification system by using Laplacian of Gaussian (LoG)

1. What is Laplacian of gaussian in image processing?
2. How does Gaussian Laplacian work?

What is Laplacian of gaussian in image processing?

The Laplacian is a 2-D isotropic measure of the 2nd spatial derivative of an image. The Laplacian of an image highlights regions of rapid intensity change and is therefore often used for edge detection (see zero crossing edge detectors).

How does Gaussian Laplacian work?

The Laplacian of Gaussian is useful for detecting edges that appear at various image scales or degrees of image focus. The exact values of sizes of the two kernels that are used to approximate the Laplacian of Gaussian will determine the scale of the difference image, which may appear blurry as a result.