What is the basic function of color? It is my professional homework, please answer it in detail.

1), artistic angle color, light color, background color.

A, the so-called "color" refers to the construction of the noumenon color of a specific video of a future movie. That is to say, it refers to the specific spatial environment of the screen modeling world and the noumenon color of the artistic image of the characters. They almost include architectural color, environmental color, prop color, decorative color, clothing color, cosmetic color, national color, regional color, national color (national flag, national emblem, party flag, symbols and other colors) ... Specifically, the contents of "color" include:

Architectural color-the true color of the architectural part of the character activity space;

Environmental color-the comprehensive color of natural environment and artificial environment;

Prop color one-the necessary color to display props and carry-on props;

Decorative color-the appearance and color of flowers, curtains, ornaments and ground decorations in the space;

Clothing color-qualitative colors such as single clothes, warm clothes, shoes and hats;

Makeup color1-the skin color of the characters and the color of the ornaments;

Effect color-the space environment in special situation, the "old" color of costume props, and the makeup color of character modeling. Such as burned buildings, damaged props, subjective color organization, scars and wounds.

B, the so-called "light color" refers to the color and tone of the screen visual image under the action of light. That is to say, after the artist's overall design and sub-scene design, the unit scene, the overall space of the whole film, the overall artistic image of the characters, the color composition of the picture and the atmosphere color and keynote color of color conversion are all implemented on the drawings. Specifically, the content of "light color" includes:

Scene fading-the color theme of unit scene space;

Tone-the overall tone of the whole space environment under the action of light;

Ambient color-the color of the special atmosphere of the film space environment.

C, the so-called "contextual color" refers to the construction of the visual language image of the screen, as well as the colors and tones that form a certain artistic style and personality characteristics. It also refers to the artistic imagination and content of artists' use of color language in the future screen world. They almost include objective color (scene tone, color tone) and subjective color (color conversion, color reconstruction, color rhythm) in the form of expression. Color language color, emotional appeal color, psychological color, atmosphere color, sound effect color, social content color of the times, historical color, national culture color, regional culture color and so on. The contents of "background color" generally include:

Objective color-the artist's true reproduction of the spatial environment and the color of the characters;

Subjective color-the expression of the artist's subjective imagination of the spatial environment and the color of the characters;

Character color-first, the subjective and objective color is used as the tone to express the content of a character's thought, character, emotion, conduct, psychology and soul;

National cultural color-the color tendency of different national spatial environments and characters after centralized generalization and strengthening;

Regional cultural colors are represented by objective reproduction colors and subjective expression colors in different countries and regions;

Times color-a specific representative color based on political, economic and cultural conditions in a certain period;

Historical color-the artist's subjective judgment on the development process of a specific society in the film.

(2) Photography angle-light color, painting color and film color.

The so-called "light color" is basically the same as the artist's creative thinking. Of course, sometimes it is very different. However, judging from the photographer's creation, at the shooting scene, more attention is paid to the light color modeling of characters and the light color artistic treatment of the picture space environment atmosphere.

The so-called "painting color" refers to the color of the picture composed by the photographer through the camera lens. Including the artistic treatment of the color, tone and tone of the picture in the moving state or the "static" state. When choosing and composing colors on the surface of the picture, photographers should use color contrast, harmony and color configuration to complete the modeling task of the picture image, organize the color center of the movie picture, form a certain emotional atmosphere, make it have a specific meaning and form movie characters. There are often "negative images" in modern film works, which are used to express unrealistic scenes such as dreams or subjective imagination. The color of the screen picture is the complementary color phenomenon of the original image color, and the alternation of light and dark is completely opposite to the reality, which has a strong illusion and abnormal feeling. This is another characteristic of painting color. There are many similarities or similarities between the photographer's "painting color" and the artist's "situational color" creativity.

The so-called "film color" refers to the film color after light distribution in the process of formal development or copying. In order to determine the appropriate printing conditions, it is necessary to adjust the exposure and color of each lens. A film composed of hundreds or thousands of lenses, due to the differences in film performance, changes in shooting conditions and unstable factors in development and printing technology, the density and tone of each lens negative are not completely ideal. In order to make the density of the positive film completely uniform and the color return to normal, it is necessary to adjust the printing conditions of each lens, that is, adjust the dimming signal, the normal density and color of the picture and process the photographic tone of the film.

(3) Director's perspective-language color and tone color.

From the director's creative point of view, that is, the overall artistic design, the shooting of shots, and the synthesis of audio-visual language in the later period, the elements of film color can be summarized as: language color and keynote color.

The director's "language color" is generally similar to the artist's concepts of "light color" and "context color". However, the overall color and picture color of the film also have their own unique thinking and treatment. The so-called "language color" refers to the color that constitutes the main content of film language. He is an important "actor" who shapes and expresses the external world, especially the inner world of the characters, and is one of the main roles of the screen plot. The basic ways to form a film language with color as the main factor are:

A, the cutting configuration of the overall color structure, such as the proper splicing of black and white segments and color segments, like Schindler's List directed by Spielberg, the first segment is black and white, and the last segment is color; Another example is the former Soviet movie "Dawn here is very quiet and beautiful ...", in which color segments are inserted in the overall black and white;

B, the subjective rebellious disposition of objective color, and antonioni's "enlargement" changed the original image and emphasized.

New organizational color;

C, the subjective compulsory deployment of objective colors, the last paragraph of Red Sorghum directed by Zhang Yimou (Blood Sea): Strengthen the color of red, yellow and white cloth in Chrysanthemum Bean, vent men's feelings and express characters.

D, the mixed configuration of subjective and objective colors. The color of the jungle is objective, and the color of the toilet is subjective. The first paragraph of Apocalypse Now is objective and the second paragraph is subjective, forming a color theme.

E, the gradual configuration from objective color to subjective color, "with light" first objective color effect, and then subjective color to enhance the effect.

F, the distribution of cultural conflicts with national colors. American movies "Eye of the Witness" and "Dancing with the Wolf", modern American white culture, Kenyan African black culture and American Indian culture, with the development of the plot, highlight the conflicts between different countries and different races ... Of course, there will be many other ways to create the color language of original movies in the future, but the color configuration must be closely related to the character and emotion of the characters. A color without emotion must be imitated naturalism or limited to superficial emotional expression.

The so-called "tone color" refers to the color configured for the basic tone of different types and styles of films. According to the director's early creative ideas, the later audio-visual language synthesis is the main content of the overall grasp. The colors configured for the basic tone of the film include the scene color provided by the artist, the character modeling color and so on. , and the color formed by the photographer through the lens. However, according to the requirements of different types and styles of screen plays, when the director finally grasps the overall art, he can strengthen the control according to the color tone, and become a blue-gray tone, a red tone, a gray Huang Tiao and so on, and become a cool tone, a warm tone or an intermediate comprehensive tone according to the color; According to chromaticity, it is controlled to be Liang Cheng tone, dark tone or midtone, etc. , so that the timbre gives people an overall outstanding impression and plays a role in touching the theme. Spielberg's empire of the sun is based on the image of the sun in the Japanese flag. Because sunlight, light, firelight, moonlight and atomic light make up the integrated lighting of cold and warm (cold and warm combined tone), light dominates the whole film (bright tone). The war has caused tragic trauma to the hearts of human beings, especially children ... the overall color is blue-gray Of course, the tone of each paragraph has a constant fluctuation of cold and warm rhythm: Jim's house is warm orange; The street refugee section in Shanghai is slightly cold, dark blue and green; Shanghai temporary concentration camp is cold, blue, purple and gray; The warm color of the sun strengthened in Suzhou concentration camp makes the picture warm gray-yellow; The playground is in a cold blue-purple-gray tone, and the scene at the end of Recognizing the Son is also in a cold blue-purple-gray tone. The repeated cold tone at the end of the film echoes the cold tone of Huangpu River in the opening caption substrate, which constitutes the main color of the whole film and indicates the theme of the film.