The Development Of Graphics And Image Processing Application Program Based On Ios System

iOS has advantages of good development frameworks, convenient application promotion platform, unified hardware equipment, good compatibility and low maintenance cost. It is a operating system developed by Apple Corp for the iPhone, iPad, Apple TV and other Apple products.In iOS applications, the proportion of the image and graphic processing applications is not small. However, with the analysis of the existing image processing software, we find that although the graphics rendering and image gray processing technology have been widely used and algorithm is relatively mature, the existing graphics and image application software generally lack the encryption function and cannot provide the user data with privacy protection as network security is getting more and more widely attention today.The research and the implementation mainly focus on two aspects. By using the Core Graphics framework of iOS system to develop a changeable graphics rendering application and an image processing application with optical illusion effect and the debug the real machines; One is to optimize the existing graphics rendering and image gray processing algorithm; two is to make up the lack of user privacy protection of the existing graphics rendering and image gray processing software and to focus on the research of graphics and image encryption algorithm.The research not only on the development of application software of the simulator test and prototype test, but also to achieve a complete development process of application software based on iOS system. We further construct a novel image encryption algorithm based on the one-dimensional two-particle discrete-time QW on a circle. Simulations and performance comparisons show that the proposal passes various randomness tests and is secure enough for image encryption and outperforms prior works in terms of quantifiers based on non-priority, statistical complexity, information theory, speed, key space, recurrence plots, etc. Compared with existing image encryption schemes, our proposal also outperforms prior works in terms of key space, correlation, information entropy, etc.It should be strive for the image encryption algorithm based on QW to be implemented in software based on image encryption function, and increase in the image processing software in future studies, the user image security and personal privacy protection and better.