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Reseach Article

Handwritten Kannada Characters Recognition using Curvelet Transform

Published on April 2015 by Shashikala Parameshwarppa, B.v. Dhandra
National conference on Digital Image and Signal Processing
Foundation of Computer Science USA
DISP2015 - Number 3
April 2015
Authors: Shashikala Parameshwarppa, B.v. Dhandra

Shashikala Parameshwarppa, B.v. Dhandra . Handwritten Kannada Characters Recognition using Curvelet Transform. National conference on Digital Image and Signal Processing. DISP2015, 3 (April 2015), 12-16.

author = { Shashikala Parameshwarppa, B.v. Dhandra },
title = { Handwritten Kannada Characters Recognition using Curvelet Transform },
journal = { National conference on Digital Image and Signal Processing },
issue_date = { April 2015 },
volume = { DISP2015 },
number = { 3 },
month = { April },
year = { 2015 },
issn = 0975-8887,
pages = { 12-16 },
numpages = 5,
url = { /proceedings/disp2015/number3/20491-3026/ },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
%0 Proceeding Article
%1 National conference on Digital Image and Signal Processing
%A Shashikala Parameshwarppa
%A B.v. Dhandra
%T Handwritten Kannada Characters Recognition using Curvelet Transform
%J National conference on Digital Image and Signal Processing
%@ 0975-8887
%V DISP2015
%N 3
%P 12-16
%D 2015
%I International Journal of Computer Applications

The Selection of a feature extraction method for recognition of an object/character is probably the single most factors in achieving high recognition accuracy. Therefore, in this paper an effort is made to identify the Second Generation Discrete Curvelet Transform (DCTG2) as the potential features for recognition of handwritten Kannada character system . Images are made noise free by median filter and images are normalized into 64x64 pixels. Curvelet transform with different scales are applied to the input images to generate the curvelet coefficients . Then the standard deviation are computed for the curvelet coefficients to form feature vector of size 20. The total of 2800 Kannada vowels and 6800 handwritten Kannada consonants of sample images are used for classification based on the KNN classifier. To test the performance of the proposed algorithm two fold cross validation is used. The average recognition accuracy of 90. 57% is obtained for handwritten basic Kannada characters respectively. The proposed algorithm is independent of thinning and skew of the character images.

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Index Terms

Computer Science
Information Sciences


Kannada Character Recognition Curvelets Standard Deviation Knn Classifier.