Image Scrambling and Descrambling Using Fibonacci Transformation Method

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.