Abstract:
Nowadays, images are part of our daily life, and
content based image retrieval (CBIR) is a wide research
area. Many researchers have done work on local patterns
and directional patterns. In this paper, a new direction based
feature descriptor has been proposed for content based image
retrieval. The proposed method extracts the directional features
using discrete wavelet transform (DWT) and directional local
extrema patterns (DLEP). Wavelet coefficients are extracted
from image, and based on direction information of the coeffi-
cient, corresponding DLEP is applied. Presented method has
been tested on Corel-5k and Corel-10k database, and evaluation
measures are computed for the fruitfulness of this method.
Comparison with earlier local pattern techniques indicates that
this directional method is more significant than others.
