Text Localization, Extraction and Inpainting in Color Images using Combined Structural and Textural Features
In this article, a new approach is proposed for text detection, extraction and inpainting in color images. The proposed algorithm includes three stages. In the first stage, several gradient based operators and image corners are utilized to localize text blocks. We use a new block split and merging a...
Main Authors: | , |
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Format: | Article |
Language: | English |
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Iran Telecom Research Center
2015-06-01
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Series: | International Journal of Information and Communication Technology Research |
Subjects: | |
Online Access: | http://ijict.itrc.ac.ir/article-1-99-en.html |
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author | Mohammad Khodadadi Azadboni Alireza Behrad |
author_facet | Mohammad Khodadadi Azadboni Alireza Behrad |
author_sort | Mohammad Khodadadi Azadboni |
collection | DOAJ |
description | In this article, a new approach is proposed for text detection, extraction and inpainting in color images. The proposed algorithm includes three stages. In the first stage, several gradient based operators and image corners are utilized to localize text blocks. We use a new block split and merging algorithm to enhance the accuracy of text localization algorithm. An SVM based text verification algorithm is then employed with a new set of features to reject non-text blocks. To inpaint text areas, we cluster different colors in the text blocks using k-means clustering algorithm and estimate background and text colors. Then a color segmentation algorithm is employed to detect characters’ pixels accurately. In the third stage, the proposed inpainting algorithm is applied to restore initial image contents. The inpainting algorithm is based on a matching algorithm that considers the priority for inpainting the pixels. Experimental results and a comparison of the results with those of other methods show the efficiency of the proposed algorithm. |
first_indexed | 2024-04-10T16:39:41Z |
format | Article |
id | doaj.art-1ea768cce023417ab837a40e980b6d6c |
institution | Directory Open Access Journal |
issn | 2251-6107 2783-4425 |
language | English |
last_indexed | 2024-04-10T16:39:41Z |
publishDate | 2015-06-01 |
publisher | Iran Telecom Research Center |
record_format | Article |
series | International Journal of Information and Communication Technology Research |
spelling | doaj.art-1ea768cce023417ab837a40e980b6d6c2023-02-08T07:54:43ZengIran Telecom Research CenterInternational Journal of Information and Communication Technology Research2251-61072783-44252015-06-01721931Text Localization, Extraction and Inpainting in Color Images using Combined Structural and Textural FeaturesMohammad Khodadadi Azadboni0Alireza Behrad1 In this article, a new approach is proposed for text detection, extraction and inpainting in color images. The proposed algorithm includes three stages. In the first stage, several gradient based operators and image corners are utilized to localize text blocks. We use a new block split and merging algorithm to enhance the accuracy of text localization algorithm. An SVM based text verification algorithm is then employed with a new set of features to reject non-text blocks. To inpaint text areas, we cluster different colors in the text blocks using k-means clustering algorithm and estimate background and text colors. Then a color segmentation algorithm is employed to detect characters’ pixels accurately. In the third stage, the proposed inpainting algorithm is applied to restore initial image contents. The inpainting algorithm is based on a matching algorithm that considers the priority for inpainting the pixels. Experimental results and a comparison of the results with those of other methods show the efficiency of the proposed algorithm.http://ijict.itrc.ac.ir/article-1-99-en.htmltext detectiontext localizationimage inpaintingstructural and textural featurescolor segmentation |
spellingShingle | Mohammad Khodadadi Azadboni Alireza Behrad Text Localization, Extraction and Inpainting in Color Images using Combined Structural and Textural Features International Journal of Information and Communication Technology Research text detection text localization image inpainting structural and textural features color segmentation |
title | Text Localization, Extraction and Inpainting in Color Images using Combined Structural and Textural Features |
title_full | Text Localization, Extraction and Inpainting in Color Images using Combined Structural and Textural Features |
title_fullStr | Text Localization, Extraction and Inpainting in Color Images using Combined Structural and Textural Features |
title_full_unstemmed | Text Localization, Extraction and Inpainting in Color Images using Combined Structural and Textural Features |
title_short | Text Localization, Extraction and Inpainting in Color Images using Combined Structural and Textural Features |
title_sort | text localization extraction and inpainting in color images using combined structural and textural features |
topic | text detection text localization image inpainting structural and textural features color segmentation |
url | http://ijict.itrc.ac.ir/article-1-99-en.html |
work_keys_str_mv | AT mohammadkhodadadiazadboni textlocalizationextractionandinpaintingincolorimagesusingcombinedstructuralandtexturalfeatures AT alirezabehrad textlocalizationextractionandinpaintingincolorimagesusingcombinedstructuralandtexturalfeatures |