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For image authentication, the capability of accurately locating tampered pixel and ensuring security is desirable. In this paper, we propose a novel reversible two-level image authentication scheme based on chaotic fragile watermark. In the embedding process, at the pixel level, by utilizing the pixel correlation technology, the location watermark of each pixel is generated and embedded to the LSB...
The article illustrates a scheme of RTOS based on OSEK/VDX, and chooses an appropriate hardware platform for the automotive electronics, to fulfill the Simulation and Debugging according to the modules and functions. Finally, the test of the scheme succeeds and the values of the system are measured and analyzed.
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