ovel wa rking– techn or cop protec nd au ation has
b ted i study. pyrigh ction, opose a new visible watermarking technique where the intensity of the watermark in different regions of the image depends on the ion odels is leveraged with the noise reduction of the visibility r HVS in DWT domain. The perceptual weights is fine tuned for watermark e whic lts sign nt impr ent over the waterm d images by CSF only based algorithms ding th ge quality, translucence and robustness of the watermarking.
For authentication and verification of the integrity for the dual watermarked images, we applied i-fragile watermark algorithm which can detect and localize malicious attack effectively lerate mild modifications such as JPEG compression and channel additive white Gaussian ental results demonstrate the proposed visible arking scheme has achieved high PSNR values with better visual fidelity and robustness
than other schemes and the semi-fragile watermarking scheme has the capability to y the integrity of the images.
from visible watermark.
A n terma based ique f yright tion a thentic
een presen n this In co t prote we pr
underlying content of the image and human sensitivity to spatial frequencies. The collaborat of CSF and NVF for HVS m
thresholds fo
mbedding h resu ifica ovem arke
regar e ima
In the future work, we hope to apply the proposed dual watermarking scheme to other multimedia contents like video and hope to find another better way to solve the security issue
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