Robust image hashing using SIFT feature points and DWT approximation coefficients.

Lokanadham Naidu Vadlamudi Rama Prasad V. Vaddella Vasumathi Devara

Published in: ICT Express (2018)

Keyphrases

feature points
scale invariant feature transform
feature descriptors
feature matching
image sequences
affine distortion
point correspondences
epipolar geometry
image features
keypoints

affine transformation
feature point matching
pose estimation
image matching
coordinate frame
image watermarking
wavelet coefficients
face images
feature detectors
corner points

sift descriptors
multiscale
object recognition
input image
facial feature points
multiresolution
bag of features
camera motion
harris corner detector
training data

similarity measure
camera pose
image descriptors
watermarking algorithm
image pixels
discrete wavelet transform
image retrieval
facial features
matching algorithm