{"title":"Improved Posterized Color Images based on Color Quantization and Contrast Enhancement","authors":"Oh-Yeol Kwon, Sung-Il Chien","volume":59,"journal":"International Journal of Electrical and Computer Engineering","pagesStart":1513,"pagesEnd":1517,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/10396","abstract":"A conventional image posterization method\r\noccasionally fails to preserve the shape and color of objects due to the\r\nuneffective color reduction. This paper proposes a new image\r\nposterizartion method by using modified color quantization for\r\npreserving the shape and color of objects and color contrast\r\nenhancement for improving lightness contrast and saturation.\r\nExperiment results show that our proposed method can provide\r\nvisually more satisfactory posterization result than that of the\r\nconventional method.","references":"[1] Posterization techniques, http:\/\/www.adobe.com\/designcenter\/photoshop\r\n\/articles\/phs8posteriz.html.\r\n[2] BCC posterization filter, http:\/\/borisfx.cachefly.net\/borisfx\/download_fil\r\ne\/bccavx.posterize.pdf.\r\n[3] L. Klose, Posterized algorithm, http:\/\/www.axiomx.com\/posterize.htm.\r\n[4] O. Y. Kwon, S. H. Kim, and S. I. Chien, \"Color quantization based on\r\nlightness enhancement factor and perceptual threshold in CIELUV color\r\nspace,\" IEEE Intl. Conf. Machine Vision, 2010, pp. 162-165.\r\n[5] H. B. Kekre and T. K. Sarode, \"Vector quantized codebook optimization\r\nusing k-means,\" International Journal on Computer Science and\r\nEngineering, vol. 1, no. 3, pp. 283-290, 2009.\r\n[6] C. H. Chang, P. Xu, R. Xiao, and T. Srikanthan, \"New adaptive color\r\nquantization method based on self-organizing maps,\" IEEE Trans.\r\nNeural Networks, vol. 16, no. 1, pp. 237-249, 2005.\r\n[7] M. D. Fairchild, Color Appearance Models, 2nd ed., Chichester, UK,\r\nJohn Wiley & Sons, 2005.\r\n[8] T. H. Lee, O. S. Kwon, K. H. Park, and Y. H. Ha, \"Hue-shift modeling\r\nand correction method for high-luminance display,\" IEEE Intl. Conf.\r\nImage Processing, 2007, pp. 465-468.\r\n[9] N. Hassan and N. Akamatsu, \"A new approach for contrast enhancement\r\nusing sigmoid function\", Inernational Arab Journal of Information\r\nTechnology, vol. 1, no. 2, pp. 221-226, 2004\r\n[10] H. R. Yoon, Color Theory, Seoul, KR, Kukjebook(in Korean), 2005.\r\n[11] K. N. Plataniotis and A. N. Venetsanopoulos, Color Image Processing\r\nand Application, Heidelberg, DE, Springer-Verlag, 2000.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 59, 2011"}