With AI, everyone can be an artist. The emergence of AI painting is just like what Swiss artist Paul Kerry said: "Art does not reproduce the visible, but makes the invisible visible. Of course, some teams have developed the technology of generating images from voice. Upload a picture, or enter some simple keywords, and the system can automatically generate a cartoon image... Recently, AI painting has become popular on the Internet social platform. AI painting, as its name implies, is the use of artificial intelligence for painting, which is one of the typical application scenarios of AI generated content. Its main principle is to collect a large number of existing works, analyze their content and style characteristics through algorithms, and finally generate new works, so algorithms are the core of AI painting. At present, AI paintings that generate images "out of thin air" are also prone to "rollover": perhaps the last second AI draws a anime portrait full of artistic sense through your photos, and the next second your pet cats and dogs may be painted as cute girls or muscular men. In fact, AI painting has been popular all over the world. The first painting work "Portrait of Edmund Bellamy" created by artificial intelligence on public display was sold at Christie's auction house for 432500 dollars in 2018. It was a Xiao portrait painting automatically generated after the machine learned 15000 portraits from the 14th century to the 20th century. How does AI painting achieve "making pictures out of nothing"? Apart from entertainment, what are the potential application prospects of AI painting? From "map generation" to "voice generation", in 2022, the Space Opera House created by artificial intelligence once became popular. In the emerging digital artist competition held in Colorado, the Space Opera House won the first prize in the category of "digital art/digital retouching photos". Its composition, color matching and details of the picture are exquisite. However, the creator of this work is not an artist, but a game designer from Colorado, USA. In an AI creation tool called "Midjournal", the game designer first input several keywords, such as light source, composition, atmosphere, etc., to get 100 pieces of works, and then revised them for about 80 hours, finally selected 3 pieces of works, and finally printed the images on the canvas. The "art" works generated in a short time through simple interactive dialogue let human artists start a debate about "whether AI painting works are cheating in the competition". This huge debate also makes the public intuitively aware of the extent to which AI painting has developed today. "The earliest artistic creation of AI can be traced back to the end of the last century, when the AI painting technology was called 'stylized filter of images'." Dong Weiming, a researcher in the National Key Laboratory of Multimodal AI Systems of the Institute of Automation, Chinese Academy of Sciences, said that the original AI painting methods were relatively simple, such as