Abstract
This paper proposes a natural logarithmic and chaotic-based encryption algorithm for securing images. It has two important steps. In the first step, a natural logarithmic function of the image to reduce the intensity of the pixel values and image fusion are used for encrypting the image using the key. In the second step, the Henon chaotic function is used for shuffling the pixel values. Here, logarithmic function scatters the pixel values differently and image matrix is a key used to create image fusion. In the resulting matrix, neighbouring values with naturally close will take on appreciably different values, making it difficult to crack the resulting image. The proposed method creates complexity against differential attacks. The different types of the tests with analysis have been performed to prove the validity and the security of the algorithm.
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