Mathematics
The Laplacian and Its Role in Image Processing
Quick fact
The Laplacian is an isotropic second-order derivative operator that detects edges regardless of orientation, and it forms the basis for the popular 'Laplacian of Gaussian' (LoG) edge detector.
Why this is interesting
You’ve likely seen photo apps that outline edges or sharpen details. How does a simple mathematical operator turn a blurry photo into a crisp one?