ÇѱÛÁ¦¸ñ(Korean Title) |
»ó°üµµ ±â¹ÝÀÇ °ÀÎÇÑ ºí¶óÀÎµå ¿öÅ͸¶Å· |
¿µ¹®Á¦¸ñ(English Title) |
Correlation-based Robust Blind Watermarking |
ÀúÀÚ(Author) |
ÁÖ»óÇö
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¿ø¹®¼ö·Ïó(Citation) |
VOL 10-B NO. 05 PP. 0479 ~ 0484 (2003. 08) |
Çѱ۳»¿ë (Korean Abstract) |
´ëºÎºÐÀÇ ¿öÅ͸¶Å· ±â¹ýÀº °ø°Ý¿¡ ´ëÇÑ °Àμº°ú ºñ°¡½Ã¼ºÀ» µ¿½Ã¿¡ ¸¸Á·½ÃÅ°±â À§ÇÏ¿© Áß°£ÁÖÆļö ¿µ¿ª¿¡ ¿öÅ͸¶Å©¸¦ »ðÀÔÇϴµ¥ ¹ÝÇØ, º» ³í¹®¿¡¼´Â ¿þÀÌºí¸´ ºÐÇØµÈ ¿µ»óÀÇ ÀúÁÖÆÄ¿µ¿ª¿¡ ¿öÅ͸¶Å©¿, {-1, +1}, À» ºñ°¡½ÃÀûÀ¸·Î »ðÀÔÇÏ´Â ºí¶óÀÎµå ¿öÅ͸¶Å· ±â¹ýÀ» ¼Ò°³ÇÑ´Ù. ¿öÅ͸¶Å©¸¦ »ðÀÔÇÏ´Â À§Ä¡´Â Å°¿¡ ÀÇÇØ ·£´ýÇÏ°Ô ¼±ÅõǸç, ÈÁú¿È¸¦ Å©°Ô ÀÏÀ¸Å°´Â °è¼ö¿¡ ´ëÇؼ´Â ¿öÅ͸¶Å© »ðÀÔÀ» »ý·«ÇÑ´Ù. º» ¹æ½ÄÀº ÃßÃâµÈ ¿öÅ͸¶Å©¿ÀÇ »ó°üµµ °è»ê¿¡ ÀÇÇØ ¿öÅ͸¶Å©ÀÇ À¯¹«¸¦ ÆÇÁ¤ÇϹǷΠ¿öÅ͸¶Å©¿ÀÇ ÀϺΰ¡ »ðÀÔµÇÁö ¾Ê´õ¶óµµ ¿öÅ͸¶Å©ÀÇ ÆÇÁ¤¿¡´Â ¹«¸®°¡ ¾øÀ½À» º¸ÀδÙ. Á¦¾ÈÇÏ´Â ¹æ½ÄÀÇ ¼º´ÉÀº ChechMark [1]ÀÇ º¥Ä¡¸¶Å· ÅøÀ» ÅëÇÏ¿© °ËÁõÇÏ¿´À¸¸ç [1]¿¡ µî·ÏµÇ¾î ÀÖ´Â ´Ù¸¥ ¹æ½Äµé°ú ºñ±³ÇÏ¿´´Ù.
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¿µ¹®³»¿ë (English Abstract) |
We propose a blind watermarking method that embeds a binary pseudo-random sequence (watermarks), {-1, 1}, into wavelet dc components, while most watermarking techniques embed watermarks in the middle frequency range for robustness and fidelity. In our scheme, the watermarks are embedded into particular locations to be selected by a key, where some watermark embeddings are skipped to avoid severe degradation in quality. Our robustness is compared to some results registered to the ChechMark [1] that is one of the most popular benchmarking tools., |
Å°¿öµå(Keyword) |
¿öÅ͸¶Å·
Watermarkong
»ó°üµµ
correlation
ºí¶óÀεå
Blind
¿þÀÌºí¸´
Wavelet
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ÆÄÀÏ÷ºÎ |
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