Gaussian Pyramid and DOG Generation in SIFT Operator

The generation of Gaussian pyramid and Difference of Gaussian (DOG) represents the initial computational steps in the SIFT feature detection algorithm

Automatic Feature Point Detection in Two Images Using SIFT Algorithm

Implementation of automatic feature point searching between two images using the SIFT operator, including feature detection, descriptor computation, and matching methodology.

SURF Operator (Speeded Up Robust Features)

The SURF operator (Speeded Up Robust Features) is a robust image detection and description algorithm. Partially inspired by the SIFT operator, standard SURF implementation runs several times faster than SIFT while demonstrating superior stability across various image transformations, using integral images and Haar wavelet responses for efficient feature computation.