ABSTRACT
This paper proposes FlexiFont, a system designed to generate personal font libraries from the camera-captured character images. Compared with existing methods, our system is able to process most kinds of languages and the generated font libraries can be extended by adding new characters based on the user's requirement. Moreover, digital cameras instead of scanners are chosen as the input devices, so that it is more convenient for common people to use the system. First of all, the users should choose a default template or define their own templates, then write the characters on the printed templates according to the certain instructions. After the users upload the photos of the templates with written characters, the system will automatically correct the perspective and split the whole photo into a set of individual character images. As the final step, FlexiFont will denoise, vectorize, and normalize each character image before storing it into a TrueType file. Experimental results demonstrate the robustness and efficiency of our system.
- Fonts for peas. http://kevinandamanda.com/fonts/fontsforpeas.Google Scholar
- Pilot handwriting. http://pilothandwriting.com.Google Scholar
- Your fonts. http://www.yourfonts.com.Google Scholar
- G. Bradski and A. Kaehler. Learning OpenCV: Computer vision with the OpenCV library. O'Reilly Media, Inc., 2008.Google ScholarDigital Library
- A. K. Jain. Fundamentals of digital image processing. Prentice-Hall, Inc., 1989. Google ScholarDigital Library
- A. Kolesnikov. Approximation of digitized curves with cubic bézier splines. In ICIP, pages 4285--4288. IEEE, 2010.Google Scholar
- F. Lab. Scan font. http://www.fontlab.com/font-converter/scanfont.Google Scholar
- J. Liang, D. Doermann, and H. Li. Camera-based analysis of text and documents: a survey. IJDAR, 7(2-3):84--104, 2005.Google ScholarDigital Library
- Microsoft. Opentype specification. https://www.microsoft.com/typography/otspec/otff.htm.Google Scholar
- S. Pal, P. Ganguly, and P. Biswas. Cubic bézier approximation of a digitized curve. Pattern recognition, 40(10):2730--2741, 2007. Google ScholarDigital Library
- M. Plass and M. Stone. Curve-fitting with piecewise parametric cubics. In ACM SIGGRAPH, volume 17, pages 229--239. ACM, 1983. Google ScholarDigital Library
- P. Selinger. Potrace: a polygon-based tracing algorithm. Potrace (online), http://potrace.sourceforge.net/potrace. pdf (2009-07-01), 2003.Google Scholar
- N. Stamatopoulos, B. Gatos, I. Pratikakis, and S. J. Perantonis. Goal-oriented rectification of camera-based document images. Image Processing, IEEE Transactions on, 20(4):910--920, 2011. Google ScholarDigital Library
- C. Tomasi and R. Manduchi. Bilateral filtering for gray and color images. In ICCV, pages 839--846. IEEE, 1998. Google ScholarDigital Library
- G. Williams. Fontforge. http://fontforge.sourceforge.net, 2004.Google Scholar
- J. Zhang, H. Lin, and J. Yu. A novel method for vectorizing historical documents of chinese calligraphy. In ICCDCG, pages 219--224. IEEE, 2007.Google ScholarCross Ref
Index Terms
- FlexiFont: a flexible system to generate personal font libraries
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