Abstract
There exit two known methods used to generate sky images without shooting and/or painting. One is to rely on image search while the other is to make use of three-dimensional computer graphics software. Both are, however, inefficient in that it takes much time to edit sky images until we obtain desirable sky images. This article presents a system called CosmicAI (COntent-based Search and Myriad Image Composition with Acquired Information for sky background generation), which allows the users to start their edit work with sky images which have been registered by other users. This kind of information sharing and cooperative imaging enables us to quickly generate purposive sky images as well as to refine them effectively.