What Is Computer Art?

Computer art refers to the use of computers to analyze and study art qualitatively and quantitatively, and to use computer-aided art creation.

Computer art

Use computers to analyze and study art qualitatively and quantitatively, and to use computer-aided art creation. From the perspective of computer information processing, artistic creation can be regarded as an artistic processing of pattern information such as sight, hearing, and touch. Among them, there are a large number of cumbersome technical manual labor and some non-creative mental labor with regular, repetitive, commensurate, harmonious and other properties. If completed by computer, people can concentrate their energy to make better use of creative talents.

Computer art was produced under the influence of the application and development of computer graphics. In the mid-1960s, the use of computer display and drawing graphics technology has risen. Some people have experimented with computers to draw complex shapes of artistic patterns and paintings. Initial results have been achieved. On the other hand, computer painting requires mastery of mathematical and computer programming expertise and skills It takes a long time to design the painting program, and the debugging and modification are also laborious and time-consuming, so the development is slow. Later, light pens were widely used in graphic display technology to make computers with human-computer interaction functions, which can carry out real-time manual intervention and modification of the processing process of graphic information, and get immediate processing results, making it easy for non-computer professionals to use computers This has promoted the application of computers in the fields of animation, music, dance and other arts.

Computer art has not yet formed a complete subject system. It is used in painting and sculpting in plastic art, ie

Use computers instead of brushes to assist artists in painting. Painting is a kind of plastic art composed of geometric lines, pixels, and gray, color and other visual mode information that can be represented by digital information. Computer painting is the use of a computer to interact with humans and computers to convert the pattern information required for painting creation to digital information after analog-to-digital conversion and input to the computer. After processing, the digital-to-analog conversion device outputs the picture. . Use keyboard, digitizing tablet, light pen, etc. to input the drawing mode information to the computer, and at the same time, display the intermediate results of calculation processing on the screen of the drawing display. The artist can modify and modify the computer-processed and displayed paintings in a human-computer interaction manner according to the creative intentions. After being satisfied, the computer can output the created paintings in different ways, such as photography, printing or video. Displacement and rotation of geometry information by computer

Computer-aided editing of art animation films. Animated cartoons are made of many consecutive pictures that show the plot of a movie or scientific and technological experiments, and are shot in turn using the frame-by-frame method. During the production process, artists need to spend a lot of manual labor to draw tens of thousands of artwork for shooting. Therefore, the cost of animation production is high, the production efficiency is low, and the production cycle is long. Using computer animation technology, it is possible to reduce the number of drawings that need to be drawn manually to one-tenth, thereby significantly improving labor productivity. A commonly used computer animation method is the key picture interpolation method. When using this method, the artist draws only a few key picture pictures that have abrupt movements in the coherent pictures according to the situation of the script, and then uses the computer to use human-computer interaction to sequentially place corresponding actions on two adjacent key pictures. The graphic line segments of the relationship are drawn with an inductive pen on the digital tablet in the prescribed order, and the keyboard is used to give information about the parameters (such as grayscale, color, etc.), and the mode information of the drawing is input to the computer, which is output after processing. A group corresponds to a complementary image between two key pictures. Finally, the supplementary illustrations between many key pictures were edited and connected together, and then shot frame by frame to create a continuous motion animation.

Computer-aided music creation and research. As a kind of information processing machine, a computer can input various sound wave information constituting music into a computer through analog-digital conversion, and then perform arithmetic processing and then convert it into music output through digital-analog conversion. Therefore, the application of computer can analyze and investigate the sonic characteristics of various kinds of music, investigate the relationship between the two, and understand the relationship between the two, so as to artificially synthesize and simulate the singing and music with natural artistic effects by computer. Musicians or composers can use computer experiments to synthesize musical notes with complex phonological patterns, multiple sounds, and rhythmic changes that cannot be produced with ordinary instruments. When using a computer to create music scores in a human-computer interaction mode, you can use the keyboard and light pen to visually display the scores on the display screen, compose music, audition, and modify until you are satisfied.

Computer-aided dancers for dance training and creation. Dance expresses people's thoughts and emotions through refined, organized and artistically processed human movements. The basic elements are dance gestures, rhythms and expressions. However, human movement is a complex three-dimensional space movement, and it is difficult to express it with simple, intuitive, and understandable dance notation, such as music notation. Therefore, dance has always been considered as an art that can only be understood with difficulty. Computer dance regards dance movements as a kind of pattern information, processes them with a computer, and conducts analysis and research in order to create an appropriate dance score form that can be used for guidance and training of simulated dance movements. An appropriate angle sensor is placed on the dancer's body kinematic joints, which can input the pattern information of human dance movements into the computer through analog-digital conversion in real time, and display the changes in dance movements on the display screen for the dancers to review While modifying the dance position. The computer can also store and calculate dance movement information, so as to conduct scientific analysis and research on dancers' artistic skills and experience, summarize experiences and laws, assess the level of art, and use it to guide training and improve the effect of creative art.

The application of computers in the art of sculpting is also achievable from the perspective of the development of technical means. Advances in intelligent robot technology will provide a reference for the development of three-dimensional engraving machine mechanisms.