IMAGE BASED DATA HIDING DEVICE AND METHOD

IMAGE BASED DATA HIDING DEVICE AND METHOD

An image based data hiding device and a method thereof are disclosed. Embodiments of the present invention hide data on an image through adjustment of a pixel value, and provide a method for restoring data from a hide image in which the data is hidden to prevent important information from being easi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KONG, SEONG SU, LIM, DAE WOON, KIM, YEONG SIK, KANG, GYEONG JUN
Format: Patent
Sprache:eng ; kor
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:An image based data hiding device and a method thereof are disclosed. Embodiments of the present invention hide data on an image through adjustment of a pixel value, and provide a method for restoring data from a hide image in which the data is hidden to prevent important information from being easily exposed a third party. [Reference numerals] (111) Block generation unit; (112) Pixel selection unit; (113) Group generation unit; (114) Group selection unit; (115) Data hiding unit; (116) Information transmission unit; (117) Hidden image block generation unit; (118) Restore pixel selection unit; (119) Restore pixel group generation unit; (120) First verification group generation unit; (121) Second verification group generation unit; (122) Verification group selection unit; (123) Bit value selection unit; (124) Authentication information generation unit