Image Scrambling and Descrambling Using Fibonacci Transformation Method
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Resource Overview
Implement image scrambling and descrambling using the Fibonacci transformation method, an efficient technique commonly employed in information hiding applications. The function call is f=fibonacci_t(I,r,s) where parameters are: I=input image for scrambling, r=scrambling key, s=0 for scrambling, s=1 for descrambling. This method utilizes Fibonacci sequence properties to rearrange pixel positions through modular arithmetic operations.
Detailed Documentation
The Fibonacci transformation method significantly enhances efficiency for image scrambling and descrambling operations, making it one of the most commonly used techniques in information hiding applications. The implementation uses the function call f=fibonacci_t(I,r,s), where the parameters are: I=image to be scrambled, r=scrambling key, s=0 performs scrambling, s=1 performs descrambling. The algorithm employs Fibonacci sequence properties to generate transformation matrices that rearrange pixel coordinates through linear indexing. This method effectively protects image confidentiality and security by creating visually unrecognizable patterns, while ensuring reliable image transmission and storage through reversible transformation operations. The scrambling process involves calculating Fibonacci-based position mapping, while descrambling reverses this mapping using the same cryptographic key for perfect reconstruction.
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