Abstract
Methods to convert colour images to binary form are already reported in the literature. However, these methods are inadequate for binary conversion of complex documents such as maps due to large intensity variations in different regions and entangled texts with lines representing borders, rivers, roads and other similar components. This paper proposes a new binary conversion technique, for coloured land map images, by extracting the regions and analysing the hue, saturation spread and within class ‘kurtosis’. This is a region-wise adaptive algorithm which copes up with the sharp changes of the discriminating features on different regions. Here, local regions are selected as clusters having the same hues and saturation. These regions are individually converted to binary form using the spread of their degree of within class kurtosis. The individual regions are finally combined. Our experiments include 446 colour maps from the map image database created for this purpose and made freely available at http://code.google.com/p/lmidb .
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References
Feng, M.-L., Tan, Y.-P.: Contrast adaptive binarization of low quality document images
Graud, T., Lazzara, G.: Efficient multiscale sauvola’s binarization. International Journal of Document Analysis and Recognition (2013)
Gatos, B., Pratikakis, I., Perantonis, S.J.: Adaptive degraded document image binarization. Pattern Recognition (2006)
Gatos, B., Ntirogiannis, K., Pratikakis, I.: Icdar 2009 document image binarization contest (dibco 2009). In: ICDAR, pp. 1375–1382 (2009)
Kherada, S., Namboodiri, A.M.: An ica based approach for complex color scene text binarization
Kittler, J., Illingworth, J.: Minimum error thresholding. Pattern Recognition (1986)
Lu, S., Su, B., Tan, C.L.: Document image binarization using background estimation and stroke edges. IJDAR 13(4), 303–314 (2010)
Ramírez-Ortegón, M.A., Tapia, E., Ramirez-Ramirez, L.L., Rojas, R., Cuevas, E.: Transition pixel: A concept for binarization based on edge detection and gray-intensity histograms. Pattern Recognition (2010)
Niblack, W.: An introduction to image processing. Prentice-Hall, Englewood Cliffs (1986)
Otsu, N.: A tlreshold selection method from gray-level histograms. IEEE Transactions on Systrems, Man, and Cybernetics (1979)
Ramírez-Ortegón, M.A., Tapia, E., Ramírez-Ramírez, L.L., Rojas, R., Cuevas, E.: Transition pixel: A concept for binarization based on edge detection and gray-intensity histograms. Pattern Recognition 43, 1233–1243 (2010)
Sauvola, J.J., Pietikainen, M.: Adaptive document image binarization. Pattern Recognition 33(2), 225–236 (2000)
Sezgin, M., Sankur, B.: Survey over image thresholding techniques and quantitative performance evaluation. Journal of Electronic Imaging (2004)
Thillou, B., Gosselin, C.: Color binarization for complex camera-based images. In: Color Imaging X: Processing, Hardcopy, and Applications
Wolf, C., Jolion, J.-M.: Extraction and recognition of artificial text in multimedia documents. Pattern Analysis and Applications (2003)
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Mandal, S., Biswas, S., Das, A.K., Chanda, B. (2014). Binarisation of Colour Map Images through Extraction of Regions. In: Chmielewski, L.J., Kozera, R., Shin, BS., Wojciechowski, K. (eds) Computer Vision and Graphics. ICCVG 2014. Lecture Notes in Computer Science, vol 8671. Springer, Cham. https://doi.org/10.1007/978-3-319-11331-9_50
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DOI: https://doi.org/10.1007/978-3-319-11331-9_50
Publisher Name: Springer, Cham
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