K. Prasanthi Jasmine

Work place: Department of Electronics and Communication Engineering, Andhra University, Visakhapatnam, Andhra Pradesh, India



Research Interests: Pattern Recognition, Image Compression, Image Manipulation, Image Processing, Information Retrieval


K. prasanthi Jasmine, received her B.Tech in Electronics & Communication Engineering and M.Tech in Digital Systems from Regional Engineering College( Now NIT), Warangal, Andhra Pradesh, and Osmania University College of Engineering, Osmania University, Andhra Pradesh, India in the years 2000 and 2003 respectively. Currently, she is pursuing Ph.D from Andhra University, A.P, India. Her major fields of interest is Image Retrieval, Digital image Processing and Pattern Recognition.

Author Articles
Color Histogram and DBC Co-Occurrence Matrix for Content Based Image Retrieval

By K. Prasanthi Jasmine P. Rajesh Kumar

DOI: https://doi.org/10.5815/ijieeb.2014.06.06, Pub. Date: 8 Dec. 2014

This paper presents the integration of color histogram and DBC co-occurrence matrix for content based image retrieval. The exit DBC collect the directional edges which are calculated by applying the first-order derivatives in 0º, 45º, 90º and 135º directions. The feature vector length of DBC for a particular direction is 512 which are more for image retrieval. To avoid this problem, we collect the directional edges by excluding the center pixel and further applied the rotation invariant property. Further, we calculated the co-occurrence matrix to form the feature vector. Finally, the HSV color histogram and the DBC co-occurrence matrix are integrated to form the feature database. The retrieval results of the proposed method have been tested by conducting three experiments on Brodatz, MIT VisTex texture databases and Corel-1000 natural database. The results after being investigated show a significant improvement in terms of their evaluation measures as compared to LBP, DBC and other transform domain features.

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Color and Local Maximum Edge Patterns Histogram for Content Based Image Retrieval

By K. Prasanthi Jasmine P. Rajesh Kumar

DOI: https://doi.org/10.5815/ijisa.2014.11.09, Pub. Date: 8 Oct. 2014

In this paper, HSV color local maximum edge binary patterns (LMEBP) histogram and LMEBP joint histogram are integrated for content based image retrieval (CBIR). The local HSV region of image is represented by LMEBP, which are evaluated by taking into consideration the magnitude of local difference between the center pixel and its neighbors. This LMEBP differs from the existing LBP in a manner that it extracts the information based on distribution of edges in an image. Further the joint histogram is constructed between uniform two rotational invariant first three LMEBP patterns. The color feature is extracted by calculating the histogram on Hue (H), Saturation (S) and LMEBP histogram on Value (V) spaces. The feature vector of the system is constructed by integrating HSV LMEBP histograms and LMEBP joint histograms. The experimentation has been carried out for proving the worth of our algorithm. It is further mentioned that the databases considered for experiment are Corel-1K and Corel-5K. The results after being investigated show a significant improvement in terms of their evaluation measures as compared to previously available spatial and transform domain methods on their respective databases.

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Color and Rotated M-Band Dual Tree Complex Wavelet Transform Features for Image Retrieval

By K. Prasanthi Jasmine P. Rajesh Kumar

DOI: https://doi.org/10.5815/ijigsp.2014.09.01, Pub. Date: 8 Aug. 2014

In this paper, a novel algorithm which integrates the RGB color histogram and texture features for content based image retrieval. A new set of two-dimensional (2-D) M-band dual tree complex wavelet transform (M_band_DT_CWT) and rotated M_band_DT_CWT are designed to improve the texture retrieval performance. Unlike the standard dual tree complex wavelet transform (DT_CWT), which gives a logarithmic frequency resolution, the M-band decomposition gives a mixture of a logarithmic and linear frequency resolution. Most texture image retrieval systems are still incapable of providing retrieval result with high retrieval accuracy and less computational complexity. To address this problem, we propose a novel approach for image retrieval using M_band_DT_CWT and rotated M_band_DT_CWT (M_band_DT_RCWT) by computing the energy, standard deviation and their combination on each subband of the decomposed image. To check the retrieval performance, two texture databases are used. Further, it is mentioned that the databases used are Brodatz gray scale database and MIT VisTex Color database. The retrieval efficiency and accuracy using proposed features is found to be superior to other existing methods.

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