3. Yellow: Yellow is the brightest color, representing bright and bright substances. Yellow is the noblest color. Yellow is inspiring, enthusiastic and energetic, making people feel happy, friendly, l

3. Yellow: Yellow is the brightest color, representing bright and bright substances. Yellow is the noblest color. Yellow is inspiring, enthusiastic and energetic, making people feel happy, friendly, lively, developed, wise and hopeful. Yellow has a strong sense of movement, as if it is rushing towards you and spreading in all directions. Looking at yellow for a long time can make people feel upset. Yellow is eye-catching, but too dazzling, with warning and danger, such as warning signs on road traffic signs and yellow card warnings issued by referees. Yellow is a sacred, religious and superstitious color. In China's feudal society, yellow was the color reserved for the emperor. Yellow is also the color of sex, with a lustful and shameless character. The faded yellow represents suspicion, betrayal, doubt, distrust and lack of reason, and is the color of traitor. Whoever has unsaturated yellow on his body in the oil painting "The Last Supper" is a traitor.

4. Green: Green has a calm, serene and fulfilling character. Green represents life and growth and is the color of the plant kingdom. Since green is in the middle of the visible spectrum, green is the easiest color to accept visually. Watching green makes you feel the most comfortable. Green neither represents happiness nor sadness. It has no passion and will produce a sense of boredom after a long time. Green represents hope, peace, wisdom and faithfulness. In modern times, green also represents tourism. When the purity of green decreases and contains a certain amount of gray, green shows a sad and declining feeling. When green contains a certain amount of yellow, it has a youthful color. Green on an orange background can gain strength, but can easily turn into a crude, vulgar expression. Green often represents the middle class in art, not enterprising and narrow-minded.

5. Blue: Blue is always opposite to red. Blue is negative; blue gives people a cold feeling; blue is a contraction color. When blue has greater saturation and brighter brightness, blue becomes the most positive color. In the spiritual world, blue is the noblest and most honest color. Blue has infinite associations. Blue is a typical sky color, giving people a sense of vastness, tranquility, vastness, and profoundness. Blue always has a feeling of shadow, tends to dark forces, is the color of death, and has an elusive nature.

6. Cyan: Cyan is a kind of blue, and most of the characteristics of blue are possessed by cyan. Cyan tends toward light, blue toward darkness. In the spiritual world, cyan is more positive and noble than blue. Cyan represents honesty, aboveboardness, nobility and integrity. Cyan represents eternity and praises ancient heroes. It is generally used as "famous in history" to represent that history is eternal.

7. Purple: Purple is a mysterious color and is often used to express the mysterious relationship between men and women. Purple has a sense of elegance, nobility, magnificence, and extraordinary nobility. Purple is the extreme extreme of fiery red. The proverb "red as purple" expresses this property of purple. Purple is a dull, tragic, and unlucky color. Purple is a threatening and terrifying color. Purple is the color of loneliness, devotion and can express divine love.

8. White: White is the brightest and purest color. White cannot tolerate other colors. Any little bit of color will be vividly exposed on white. White is chastity, whiteness, justice, terror, death and cowardice. White has an infinite sense of stillness. The color in the hospital is white, which gives patients a quiet and peaceful feeling, but also gives people a feeling of depression.

9. Black: Black represents solemnity, seriousness, strength, decent and not frivolous. Black is the color of silence, like the silence of the night. Black is the color of sadness, despair, terror, and death. Black is also indispensable for funerals. Black is also a sign of sin. The underworld, evil forces, and bad people are all represented by black, so black is the expression of dark forces and the color of ghosts and ghosts.

10. Gray: Gray is the color between black and white. It can coexist peacefully with various colors and form harmonious tones, so it shows an ordinary and gentle character. Among all colors, gray has neither dazzling light nor cold momentum. It has a neutral, sincere and gentle attitude.

When gray approaches white, it begins to brighten, showing the brilliance of silver, with a certain sense of nobility, subtle elegance. As it moves closer to black, its true nature disappears, showing a mess of vague ignorance and darkness. The shooting position and shooting direction of images and videos are very important. Frontal shooting refers to shooting completely facing the subject. It is helpful to express the frontal features of the subject and fully display the horizontal lines of the subject on the screen. The picture looks solemn, majestic, solemn and solemn, suitable for expressing a solemn and majestic atmosphere. Its shortcomings are poor perspective and dull pictures, which is not conducive to the expression of three-dimensional and spatial sense.

Side shooting refers to shooting at a 90° angle to the front of the subject. Shooting from the front and side is helpful for expressing the side features of the subject, and can clearly show the outline of the subject. Shooting from the front and side will easily produce horizontal lines parallel to the edges of the screen, so it is not conducive to expressing three-dimensional space. Oblique side shots refer to shots taken in all directions from the slightly side to the front side of the subject. Its composition is more vivid and lively. There are many shooting points for oblique side shooting, and the composition of the picture can also form a variety of changes. It can make the horizontal line of the subject change into a diagonal line on the picture, and the object will produce obvious changes in body perspective, which is conducive to expressing the depth of space and three-dimensionality. feel.

Backside shooting refers to shooting from the back of the subject. The things in the background are what the subject pays attention to, which is convenient for inspiring the audience's associations and showing the inner activities of the characters.

Generally, when designers want to express scenery above eye level, they often use a low shooting point to shoot from above. On the contrary, they use a high shooting point to shoot from above. When photographing a consistent scene, a flat shooting angle at eye level is often used.

Plain shooting refers to shooting on the same horizontal line as the subject. When shooting flat, the subject in the picture is not easily deformed, making the picture dull and boring. Shooting from above refers to shooting below the horizontal line of the subject, lower than the subject and upward. An overhead shot refers to shooting above the horizontal line of the subject and downwards above the subject. "Looking down" and "looking up", one focuses on realism and the other focuses on freehand brushwork.

The control of the shooting distance can also express the effect: the distant view is the effect obtained by shooting from the distance of the subject. Visions generally use nature as the main object of expression. When conceiving a vision picture, we should focus on the big picture and focus on introducing the environment and expressing momentum. Panorama is used to show the whole picture of a subject and its environment. Panorama has a relatively clear content center, which can express a certain momentum and scale. Medium shot is the effect obtained by shooting at a closer distance. Medium shots often win with action plots. The close-up shot is taken at a closer distance than the mid-shot. The main content of the close-up shot is the rich expressions of the characters' faces and the detailed structure of the object's shape. Close-ups are used to reveal the subject’s internal features in minute detail. Close-ups fill the frame with a certain part of the subject, focusing on revealing the inner movement and understanding the essence through details. Close-up images are often allegorical and lyrical, and the effect is subtle. Montage is the art of video shot editing, that is, the method of combining pictures. Each shot has its own performance content and can explain a certain meaning. The combination of two lenses will produce one effect, and different lens combinations will produce different effects. Montage is to find the most suitable lens assembly method by studying various effects to make it conform to the audience's habits and stimulate the audience's excitement and association.

In terms of video lens assembly techniques, the principles of lens assembly should be followed, that is, the principles of conforming to the laws of life, the principles of the laws of thinking, the principle of similarity, and the principles of moving after moving and stillness after stillness. in principle.

The length of the lens should be determined based on different scenes, the length of the lens should be determined based on the "narrative standard", and the length of the lens should be determined based on the speed of the rhythm.

There are many techniques for segmenting and intermittent images. Scene transition techniques include two-dimensional stunt techniques, such as melting, swiping, switching, etc. Three-dimensional stunt techniques, such as water ripples, etc. Better non-linear editing systems can quickly generate or play back two- or three-dimensional special effects immediately without generating them. "Hua" means "fade in and fade out".

"Hua" is usually used to express the passage of time, shortening time and the process of events. "Hua" is also used to connect memories, imagination and other retrospective paragraphs, and connect different times and spaces. Sound and background music are an integral part of multimedia, and their essence is to use music or sound to create scenes. Only by integrating the background music with the multimedia theme can the work be perfectly performed. Under normal circumstances, multimedia background music is provided by choosing a package, but of course you can also compose your own music. How to choose or make suitable background music? First of all, we must study the characteristics of the music image that the content expressed by multimedia should create. For example, is the work written for children or for college students? Or does the work express joy or sadness? They should all have different musical expressions.

The choice of instruments helps express different themes. For example, the piano has a wide range, resonant pronunciation, beautiful timbre, rich harmonies, and easy control of intensity; the violin has perfect timbre and rich expressive power; different instruments have different expressions.

Music, like painting, sculpture, and architecture, creates images that can be felt. It uses sound to shape time. The reason why music affects people's mood more quickly and strongly than other arts is because people do not understand the composer's intention by reading paper symbols, but mainly rely on listening to the music performed to understand and feel it.

The introduction of dubbing into the picture can enhance the sense of reality and make the visual image on the picture closer to the reality of life: sound can explain the plot, and can use sound to express actions and represent actions. For example, although there is no train in the picture, according to the voice-over, it can be seen that the train is coming quickly. Another example is that stimulating scenes that are not suitable to be expressed directly in pictures can also be expressed with the help of sound. Sound can play a structural function and act as a bridge to make the picture connected smoothly. By rendering the sound and portraying the psychological state of the characters, It helps to set off the atmosphere of the environment and make the static picture come alive.

Realistic sound includes effects, language lines and music. The effect can make people immersed in the scene and enhance the expressiveness of the picture; language lines are used to express thoughts and communicate feelings, while music is mainly used to enhance the atmosphere and express feelings.

Other sounds do not completely faithfully reproduce the sounds in life, but are artistically exaggerated to varying degrees to depict the inner activities of the characters, enrich the image of the picture, or to reflect the ideological content contained in the picture. Give an artistic explanation. This kind of subjectively processed sound that goes beyond the scope of realistic sound is "subjective sound". Narrations that express a character's inner thoughts, memories, hallucinations, and dreams, commentary in multimedia, and background music simply used to describe artistic conception are all typical subjective sounds.

The integration of sound and picture means that the visual image and the auditory image are completely consistent. Whatever sound source is on the screen will make whatever sound it sounds. For example, if there is a fierce football match on the screen, there will be cheering and shouting sound effects. The integration of sound and picture should be based on the picture and supplemented by the sound. Sound should be used to increase the expressiveness of the picture and supplement the incompleteness of the picture. Therefore, there is a question of whether the sound is properly assisted. Don't blindly pile up sounds. When the picture itself has been fully explained, if you add superfluous sound components, or overemphasize the sound effect, it will not only fail to increase the expressiveness of the picture, but will dilute the appeal due to mutual constraints. Unlike many media, multimedia has interactive characteristics. Once the user interacts with the computer and causes text (including scores), animation, color, sound and music to appear on the screen, the reward, that is, the expected value, will directly affect the user's excitement, curiosity, and desire to conquer. The persistence of learning and, to some extent, determine continued interest in the course. Properly designing corresponding expectations will effectively mobilize the enthusiasm of learners and obtain better teaching results.