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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/45430


    Title: Hiding a picture in two pictures
    Authors: 黃仁俊;Hwang, Ren-junn;Chang, Chin-chen
    Contributors: 淡江大學資訊工程學系
    Keywords: Transparency;Digital watermarking
    Date: 2001-03-01
    Issue Date: 2010-03-26 19:15:09 (UTC+8)
    Publisher: International Society for Optical Engineering (SPIE)
    Abstract: We present a simple and efficient method capable of hiding a picture in two pictures, which we refer to as the picture hiding scheme. The proposed scheme generates two new pictures given two different original pictures and a secret picture. These two different original pictures are arbitrary, and the secret picture presents confidential information. The meanings of three pictures are not related to each other. An image defined as the secret picture can be recognized through the human visual system only when one of these two new pictures superposes on another new picture directly. This superposing process can be accomplished with two slides, therefore, no computation is performed. Anyone who obtains only one of these two new pictures cannot generate any knowledge of the secret picture. This picture hiding scheme can be used to construct a human identification scheme, which is particularly appropriate when delicate computer devices or instruments for identification are expensive. It also can apply to resolve the watermarking problem. © 2001 Society of Photo-Optical Instrumentation Engineers.
    Relation: Optical engineering 40(3), pp.342-351
    DOI: 10.1117/1.1346585
    Appears in Collections:[Graduate Institute & Department of Computer Science and Information Engineering] Journal Article

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