= 1.0k = 1.26

LoG approximation (Gk - G)LoG

Laplacian of Gaussian approximation

Laplacian of Gaussian approximation

Original image

Image pyramid(10 octaves)

First “octave”:-4 successive blurred image-3 corresponding DoG

- =

subsampling

Image pyramid visualisation

Linearly interpolated and absolute value (for visualisation purpose)

Other example

Linearly interpolated and absolute value (for visualisation purpose)

Other example

Linearly interpolated and absolute value (for visualisation purpose)