Image retrieval using Contourlet based interest points

In this work we present the method for image retrieval based on the Non-Subsampled Contourlet Transform (NSCT) and the Harris corner detector. The NTSC-based interest point detector is proposed by combination of NTSC and Harris corner detector called the Contourlet Harris detector. We also present the method how to extract the image features using this Contourlet Harris detector that is applied for image retrieval. Experiments are implemented on the WANG database aiming to compare retrieval effectiveness of proposed method to some methods have announced. Results demonstrate that the proposed method shows a quite improvement in the retrieval effectiveness.