Is the Laplacian Filter an High Pass Filter (HPF)?

Question

Is this kernel name as mean difference kernel or Laplacian filter?

Is mean difference just a method?

score 4 · Accepted Answer · answered Dec 26 '20 at 21:07

4

There are many approximations for the Laplacian Filter (See The Hypermedia Image Processing Reference - Laplacian/Laplacian of Gaussian):

Indeed this is an High Pass Filter. Namely it will remove low frequencies (Specifically it will remove the DC Value, namely the output image will have mean value of 0).

answered Dec 26 '20 at 21:07

Royi

33,983
4
72
179

1

Thank you @Royi. – Sun Dec 27 '20 at 22:22
@Sun, You're welcome. Please mark the answer (Click the V symbol). – Royi Dec 27 '20 at 22:24

Is the Laplacian Filter an High Pass Filter (HPF)?

1 Answers1