• Àüü
  • ÀüÀÚ/Àü±â
  • Åë½Å
  • ÄÄÇ»ÅÍ
´Ý±â

»çÀÌÆ®¸Ê

Loading..

Please wait....

±¹³» ³í¹®Áö

Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Current Result Document : 98 / 377

ÇѱÛÁ¦¸ñ(Korean Title) »öÂ÷ Á¤º¸¸¦ ÀÌ¿ëÇÑ µðÁöÅÐ ¿öÅ͸¶Å·
¿µ¹®Á¦¸ñ(English Title) Digital Watermarking Using Color Difference
ÀúÀÚ(Author) ±èÈñ¼ö   ÇÏ¿µÈ£   Hee-Soo kim   Yeong-Ho Ha  
¿ø¹®¼ö·Ïó(Citation) VOL 05 NO. 01 PP. 0118 ~ 0124 (2001. 05)
Çѱ۳»¿ë
(Korean Abstract)
º» ³í¹®¿¡¼­´Â Àΰ£ ½Ã°¢ ü°è(human visual system) Ư¼º°ú DCT °è¼ö ºÐÆ÷ Ư¼ºÀ» ÀÌ¿ëÇÏ¿© Ä®¶ó Á¤Áö ¿µ»ó¿¡ È¿°úÀûÀ¸·Î ¿öÅ͸¶Å© ½ÅÈ£¸¦ »ðÀÔÇÏ´Â ¹æ¹ýÀ» Á¦¾ÈÇÏ¿´´Ù. ÀϹÝÀûÀ¸·Î Àΰ£ ½Ã°¢ ü°è Ư¼º¿¡¼­ ¹«Ã¤»ö(achromatic) ½ÅÈ£º¸´Ù À¯Ã¤»ö(choromatic) ½ÅÈ£¿¡ ´ëÇÑ º¯º°·ÂÀÌ ¶³¾îÁö´Â Ư¼ºÀ» ÀÌ¿ëÇÏ¿© ÀÔ¡¤Ãâ·Â ÀåÄ¡·Î ȹµæµÈ RGB ÁÂÇ¥°èÀÇ Ä®¶ó Á¤Áö ¿µ»óÀ» ¹«Ã¤»ö ¼ººÐ°ú À¯Ã¤»ö ¼ººÐÀ¸·Î ¿Ïº®È÷ ºÐ¸®µÇ´Â ´Ù¸¥ ÁÂÇ¥°è·Î º¯È¯ÇÏ¿© ¿öÅ͸¶Å©¸¦ À¯Ã¤»ö ½Å¼Ò¿¡ »ðÀÔÇÑ´Ù. ¿öÅ͸¶Å©¸¦ °ËÃâÇÏ´Â °úÁ¤¿¡¼­ ¿ø¿µ»óÀ» »ç¿ëÇÏÁö ¾Ê°í DCT °è¼öµé°£ °íÀ¯ÇÑ Æ¯¼ºÀ» ÀÌ¿ëÇÏ¿© »ðÀÔµÈ ¿öÅ͸¶Å©¸¦ ÃßÃâÇÏ¿´´Ù. Ä®¶ó Á¤Áö ¿µ»óÀ» ½ÇÇèÇÑ °á°ú ƯÈ÷ ºñ°¡½Ã¼º Ư¼º ºÎºÐ¿¡¼­ ±âÁ¸ ¹æ¹ýµé°ú ºñ±³ÇÒ ¶§ Çâ»óµÈ °á°ú¸¦ ¾òÀ» ¼ö ÀÖ¾ú´Ù.

¿µ¹®³»¿ë
(English Abstract)
In this paper, we proposed the novel digital watermarking for color still image using the characteristics of human visual system and the distribution of DCT coefficients. We insert watermark signal in the chromatic components of YCrCb color space according the characteristics of the human visual system that chromatic component are less sensitive than achromatic components. In order to extract the watermark signal, we use the relationship among the DCT coefficients of watermarked image without using original one. Simulation results show that the proposed watermarking method is better quality on invisibility than the conventional methods.
Å°¿öµå(Keyword)
ÆÄÀÏ÷ºÎ PDF ´Ù¿î·Îµå