- Volume 14 Issue 8
DOI QR Code
Improved Watermark Embbeding Algorithm Using Directional Prediction and Bilinear Interpolation
방향성 예측과 양선형 보간을 이용한 향상된 워터마크 삽입 방법
- Received : 2014.04.21
- Accepted : 2014.07.10
- Published : 2014.08.28
The proposed watermark embedding algorithm uses histogram of difference image between a modified original image and predicted image. To increase the prediction performance of the predicted image, the reference pixels for prediction are adaptively selected and the other pixels are directionally interpolated with the reference pixels. The simulation result shows that the proposed algorithm gives good performances in the embedding capacity and the PSNR values.
Watermark;Data Hiding;Histogram Shift
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