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A Mechanism for Detection of Text in Images Using DWT and MSER

  • B. N. Ajay
  • C. Naveena
Chapter
Part of the Studies in Computational Intelligence book series (SCI, volume 771)

Abstract

The study of video optical character readers (OCR) is an eminent field of research in image processing due to various real-time applications. Hence, in this chapter, an algorithm is proposed for text detection in images. The proposed method consists of mainly three stages in which the image is initially sharpened using a Gaussian filter. A discrete wavelet transform (DWT) is then applied to the sharpened image. After this step, the maximally stable extremal region (MSER) is detected to obtain the average of the detailed components of the wavelet images. To detect foreground components in an image, the Connected Component Analysis (CCA) algorithm is applied to localized text components. The proposed method is evaluated on standard MSER and MSRA-TD500 datasets. Experimental results are satisfactory.

Keywords

DWT MSER Gaussian CCA OCR 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.Department of Computer Science and EngineeringVTU-RRCBelagaviIndia
  2. 2.Department of Computer Science and EngineeringSJB Institute of TechnologyBangaloreIndia

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