Unmanned Ship Image Transmission System Based On Improved Image Scrambling Algorithm

In recent years,countries all over the world are scrambling to explore new marine energies,the problem of marine pollution and the struggle between the powers of major powers have increased the demand for offshore operations,and the risks of carrying out off shore missions have gradually increased.In order to ensure the safety of maritime personnel and increase the efficiency of maritime task completion,the paper analyzes the specific situation of maritime safety and builds an unmanned ship image transmission system.The unmanned ship image transmission system transmits the information obtained from the sea to the shore,so that the shore personnel can understand the sea information in real time,and formulate specific measures for various problems.In the transmission process,once the video data is acquired by pirates and criminals during the transmission process,it will have an impact on maritime security.Traditional image encryption algorithms often have some shortcomings,such as low encryption,high computational cost,high risk of being intercepted by malware during video transmission,and easy cap ture by attackers during video transmission.Traditional'image encryption has the above-mentioned shortcomings.This article proposes two novel encryption algorithms for these situations:(1)An improved Hill encryption algorithm is proposed for grayscale images to deal with the security issues of unmanned ship video transmission.The classic cryptographic Hill algorithm is transplanted into image encryption,and a reversible matrix key is used to achieve pairing.Image encryption has also greatly improved the calculation time of the reversible matrix,overcoming the shortcomings of traditional encryption algorithms.The improved Hill encryption algorithm is tried on gray images,combined with the video compression process,the parameters in the encryption process are adjusted according to the content in the image,which overcomes the disadvantages of the traditional encryption algorithm,and reduces the calculation time of the inverse matrix,so that the algorithm The comprehensive performance under different image information is the best,and various experimental results prove that the improved encryption algorithm has good performance.(2)Since images are not just gray images,color images are more persuasive if you want to get more useful information.For color images,an improved chaotic system and DNA encoding image encryption algorithm are proposed.A variety of DNA encoding and calculation methods are used in combination with logistic chaotic mapping to achieve the encryption of color images.Finally,the correlation analysis of neighboring pixels and experimental parameters such as image information entropy prove that the algorithm has the best comprehensive performance in terms of security.After the image is encrypted,the effect is more ideal,the encryption quality is better,and the ability to resist attacks is stronger.