ÇѱÛÁ¦¸ñ(Korean Title) |
ÀÌÁø ¹®¼ ¿µ»óÀ» À§ÇÑ Æ¯Â¡ ±â¹Ý ÅؽºÆ® ¿öÅ͸¶Å· |
¿µ¹®Á¦¸ñ(English Title) |
Feature based Text Watermarking for Binary Document Image |
ÀúÀÚ(Author) |
ÃßÇö°ï
±èȸÀ²
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¿ø¹®¼ö·Ïó(Citation) |
VOL 12-B NO. 02 PP. 0151 ~ 0156 (2005. 04) |
Çѱ۳»¿ë (Korean Abstract) |
º» ³í¹®¿¡¼´Â ¿µ¹®ÀÚÀÇ ÇüÅÂÀû Ư¼º¿¡ ±â¹ÝÇÑ ÅؽºÆ® ¿öÅ͸¶Å· ¹æ¹ýÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÏ´Â ¹æ¹ýÀº ³ôÀº µ¥ÀÌÅÍ ¿ë·®À» À¯ÁöÇÏ¸é¼ ¹®¼ º¯È¯ °úÁ¤ Áß ÀϾ ¼ö ÀÖ´Â ¿©·¯ ÇüÅÂÀÇ ¿Ö°î¿¡ ´ëÇØ °ÀÎÇÑ °ËÃâ·üÀ» À¯ÁöÇÒ ¼ö ÀÖµµ·Ï, ¹®ÀÚÀÇ ÇüÅÂÀû Ư¼º¿¡ µû¶ó ¼·Î ´Ù¸¥ ¿öÅ͸¶Å³ ¹æ¹ýÀ» ÀÌ¿ëÇÑ´Ù. ¹®ÀÚÀÇ °³º°ÀûÀΠƯ¡¿¡ µû¶ó ¶óÀÎÀÇ ¿¬°á ±¸Á¶ÀÇ º¯È ¶Ç´Â ±ÛÀÚÀÇ °æ°è Çȼ¿ÀÇ Æ¯¼º Â÷ÀÌ ¹× ³»ºÎ ȨÀÇ ³ÏÀÌ º¯È¸¦ ÅëÇØ ¿öÅ͸¶Å© ¸Þ½ÃÁö¸¦ »ðÀÔÇÏ°í °ËÃâÇÑ´Ù. ½ÇÇè °á°ú¸¦ ÅëÇØ È¸Àü ¹× È®´ë, Ãà¼Ò º¯È¯°ú Èå·ÁÁü, ³ëÀÌÁî µîÀÇ ¿Ö°î¿¡ ´ëÇØ Á¦¾ÈµÈ ¹æ¹ýÀÌ ³ôÀº µ¥ÀÌÅÍ ¿ë·®À» À¯ÁöÇϸ鼵µ 90% ÀÌ»óÀÇ ³ôÀº °ËÃâ·üÀ» À¯ÁöÇÔÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. |
¿µ¹®³»¿ë (English Abstract) |
In this paper, we propose feature based character watermarking methods based on geometrical features specific to characters of text in document image. The proposed methods ca satisfy both data capacity and robustness simultaneously while none of the conventional methods can. According to the characteristics of characters, watermark can be embed or detected through changes of connectivity of the characters, differences of characteristics of edge pixels or changes of area of holes. Experimental results show that our identification techniques are very robust to distortion and have high data capacity. , |
Å°¿öµå(Keyword) |
ÅؽºÆ® ¿öÅ͸¶Å·
Text Watermarking
ÀúÀÛ±Ç º¸È£
Copyright protection
¿µ»óó¸®
Image processing
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Document processing
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