Document Text Extraction from Document Images Using Haar Discrete Wavelet Transform

@inproceedings{Chandrasekaran2009DocumentTE,
  title={Document Text Extraction from Document Images Using Haar Discrete Wavelet Transform},
  author={RM. Chandrasekaran},
  year={2009}
}
This paper presents an efficient and computationally fast method to extract text regions from documents. In this paper, we propose Haar discrete wavelet transform (DWT)[9] which operates the fastest among all wavelets because its coefficients are either 1 or -1. This is one of the reasons we employ Haar DWT to detect edges of candidate text regions. First, we detect edges and then line feature vector graph is generated based on the edge map and the stroke information is extracted. Finally text… CONTINUE READING
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