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  1. No Access

    Article

    Enhancement of Brain Magnetic Resonance Images Using Cascade of Notch Filter and Linear Transformation Methods

    In this work, we have proposed a cascade of notch filters with linear transformation (LT) methods to enhance MRI brain images. The proposed method is compared with the inner and inter-class of spatial, frequen...

    B. J. Shivaprasad, M. Ravikumar in Pattern Recognition and Image Analysis (2023)

  2. No Access

    Chapter

    Signature Extraction from Bilingual Document Images Using Blobs Method

    In this paper, we present an effective method for signature extraction from bilingual (Kannada and English) printed/handwritten documents using the contour and blobs-based method. Experimentation is carried ou...

    G. Shivakumar, M. Ravikumar… in Modern Approaches in Machine Learning & Co… (2022)

  3. No Access

    Chapter and Conference Paper

    Segmentation of Tumor Region from Mammogram Images Using Deep Learning Approach

    Breast cancer is most common among different cancers that affect women and it is the second main cause for cancer deaths in women all over world. In order to increase the survival rate breast cancer must be de...

    M. Ravikumar, P. G. Rachana… in Advanced Informatics for Computing Research (2022)

  4. No Access

    Chapter and Conference Paper

    Searching Pattern in DNA Sequence Using ECC-Diffie-Hellman Exchange Based Hash Function: An Efficient Approach

    In this paper, the efficient Elliptic Curve Cryptography with Diffie-Hellman exchange is implemented in order to perform the searching pattern effectively from DNA sequences. The elliptic curve cryptography is...

    M. Ravikumar, M. C. Prashanth… in Machine Learning and Big Data Analytics (… (2022)

  5. No Access

    Chapter and Conference Paper

    Segmentation of Brain Tumor from MR Images Using SegX-Net an Hybrid Approach

    of brain tumor is a process of identifying the cancerous brain tissues. Manual segmentation of brain tumor from MR Image is time-consuming, and there is a need for fast and accurate brain tumor segmentation...

    M. Ravikumar, B. J. Shivaprasad in Information and Communication Technology f… (2021)

  6. No Access

    Chapter and Conference Paper

    Enhancement of Mammogram Images Using CLAHE and Bilateral Filter Approaches

    In this work, we have proposed a method for enhancement of breast images. Here, the image is enhanced primarily using spatial domain technique contrast limited adaptive histogram equalization (CLAHE), which is...

    M. Ravikumar, P. G. Rachana… in Cybernetics, Cognition and Machine Learnin… (2021)

  7. No Access

    Chapter and Conference Paper

    Enhancement of MRI Brain Images Using Fuzzy Logic Approach

    In this work, fuzzy method is proposed to enhance the contrast of Magnetic Resonance Imaging (MRI) brain images. Negative Image (NI), Log Transform (LT), Gamma Correction (GC), Histogram Equalization (HE), Ada...

    M. Ravikumar, B. J. Shivaprasad, D. S. Guru in Recent Trends in Image Processing and Patt… (2021)

  8. No Access

    Chapter and Conference Paper

    Object Recognition Using SBMHF Features

    In this research work we have achieved an object recognition from an image, instead of using feature extraction methods, directly we have considered five different namely SURF (S), MINEIGEN (M), BRISK (B), FAS...

    M. Ravikumar, S. Sampathkumar… in International Conference on Intelligent Co… (2020)

  9. No Access

    Chapter and Conference Paper

    Estimation of Skew Angle from Trilingual Handwritten Documents at Word Level: An Approach Based on Region Props

    In this work, an efficient technique for segmenting the words from multilingual unconstrained handwritten documents at word level is proposed. In the proposed model, morphological operations and connected comp...

    M. Ravikumar, B. J. Shivaprasad, G. Shivakumar… in Soft Computing and Signal Processing (2019)