A Reversible Data Hiding Scheme with High Data Capacity
碩士 === 國立暨南國際大學 === 資訊工程學系 === 107 === Recently, Qian and Zhang discussed the implementation of reversible data hiding with the concept of distributed source coding. After the encoder encrypts the image and hides the data, the decoder uses bilinear interpolation to reconstruct an estimation of the i...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2019
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| Online Access: | http://ndltd.ncl.edu.tw/handle/757f3v |
| Summary: | 碩士 === 國立暨南國際大學 === 資訊工程學系 === 107 === Recently, Qian and Zhang discussed the implementation of reversible data hiding with the concept of distributed source coding. After the encoder encrypts the image and hides the data, the decoder uses bilinear interpolation to reconstruct an estimation of the image. It then improves the image quality by using a process known as one similar error-correcting scheme and a process of LDPC decoding.
In this paper, we will improve the quality of predicted image with the concept of predictive coding, and obtain high-quality restored image with fewer errors. We do not need to use the technique of distributed source coding. This allows an increase in the available data payload without reducing the image quality and the image can be reconstructed perfectly with lower computational complexity.
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