| Summary: | 碩士 === 國立虎尾科技大學 === 資訊工程研究所 === 102 === Data hiding technique is a kind of secret communication technology. When secret information data embed in mark image, visual quality will be very important. Use of digital images to embed secret data makes use of the weaknesses in the human visual system. Change some pixels to embed secret data in images. In this dissertation, we proposed a new histogram shifting based reversible data hiding scheme implemented on block truncation codes of Images. Use histogram shifting technique and least shifting idea is can be reversible. In addition, this dissertation also proposed a compression method against histogram shifting. When Low point need bookkeeping information, This compression method can increase the pure payload. However, the experimental result shows not only have high capacity, but also can get good image quality.
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