Howtosignalprocessing
- What is Laplacian of Gaussian operator?
- What does Laplacian of Gaussian filter do?
- What is Laplacian in Python?
What is Laplacian of Gaussian operator?
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).
What does Laplacian of Gaussian filter do?
The Laplacian filter is used to detect the edges in the images. But it has a disadvantage over the noisy images. It amplifies the noise in the image. Hence, first, we use a Gaussian filter on the noisy image to smoothen it and then subsequently use the Laplacian filter for edge detection.
What is Laplacian in Python?
Python - OpenCV & PyQT5 together
Laplacian Operator is also a derivative operator which is used to find edges in an image. It is a second order derivative mask. In this mask we have two further classifications one is Positive Laplacian Operator and other is Negative Laplacian Operator.
