Author:
Tatiana Jaworska
Affiliation:
Systems Research Institute Polish Academy of Sciences, Poland
Keyword(s):
Content-based image retrieval (CBIR), image preprocessing, image segmentation, clustering, object extraction, texture extraction, discrete wavelet transformation.
Related
Ontology
Subjects/Areas/Topics:
Computer Vision, Visualization and Computer Graphics
;
Feature Extraction
;
Features Extraction
;
Image and Video Analysis
;
Informatics in Control, Automation and Robotics
;
Signal Processing, Sensors, Systems Modeling and Control
Abstract:
This article describes the way in which image is prepared for content-based image retrieval system. Our CBIR system is dedicated to support estate agents. In our database there are images of houses and bungalows. All efforts have been put into extracting elements from an image and finding their characteristic features in the unsupervised way. Hence, the paper presents segmentation algorithm based on a pixel colour in RGB colour space. Next, it presents the method of object extraction in order to obtain separate objects prepared for the process of introducing them into database and further recognition. Moreover, a novel method of texture identification which is based on wavelet transformation, is applied.