A fast skew detection and correction algorithm for machine printed words in Gurmukhi script

Sharma, Dharam Veer; Lehal, Gurpreet Singh

doi:10.1145/1577802.1577819

Cited by 3 publications

(1 citation statement)

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“…Lalita kumara et al [39] proposed skew detection of Hindi, Bengali and Punjabi language scripts by partitioning whole document into sub blocks of fixed size and used histogram analysis on each sub block. A robust skew detection and correction of isolated words of machine printed Gurmukhi script is proposed using headline of the word [40]. Shamita Ghosh and Bidyut B. Chaudhuri [41] proposed skew detection method based on Hough transform.…”

Section: Related Workmentioning

confidence: 99%

A New Algorithm for Skew Detection of Telugu Language Document based on Principle-axis Farthest Pairs Quadrilateral (PFPQ)

Subrahmanyam¹,

Kumar²,

Reddy³

2018

IJIGSP

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Skew detection and correction is one of the major preprocessing steps in the document analysis and understanding. In this paper we are proposing a new method called "Principle-axis farthest pairs Quadrilateral (PFPQ)" mainly for detecting skew in the Telugu language document and also in other Indian languages. One of the popular and classical languages of India is Telugu language. The Telugu language is spoken by more than 80 million people. The Telugu language consists of simple and complex characters attached with some extra marks known as "maatras" and "vatthulu". This makes the process of skewing of Telugu document is more complex when compared to other languages. The PFPQ, initially performs pre-processing and divides the text in to connected components and estimates principle axis furthest pair quadrilateral then removes the small and large portions of quadrilaterals of connected components. Then by using painting and directional smearing algorithms the PFPQ estimates the skew angle and performs the de-skew. We tested extensively the proposed algorithm with five different kinds of documents collected from various categories i.e., Newspapers, Magazines, Textbooks, handwritten documents, Social media and documents of other Indian languages. The images of these documents also contain complex categories like scientific formulas, statistical tables, trigonometric functions, images, etc. and encouraging results are obtained.

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Section: Related Workmentioning

confidence: 99%