The concept of image

1, the image refers to the positive or negative image left by the subject on the film. The subject forms an optical image through the camera lens, focuses on the film in the camera, forms a latent image through exposure, and then develops it on the film to form a negative image of the subject, and the negative image is copied on the positive film to get a positive image. Negative images and positive images are both called images.

2. Images are also called images. Refers to the imaging mode of non-photographic imaging sensor, and its essence is the extension of photographic photos. Photograph usually refers to optical photography imaging and recording on photosensitive film, which is passive remote sensing imaging. Images can receive visible light, infrared, thermal infrared and microwave information of ground objects through optical machine, photoelectric or antenna scanning, and be recorded on magnetic tape or photosensitive film through photoelectric conversion. Compared with photos, it has a wider scope in content and form. Using "images" to include (rather than replace) "photos" is the result of the development of aerial reconnaissance to remote sensing and photography to imaging.

3. Image is the part of audio-visual language that appeals to "seeing" and is the basis of audio-visual language. First of all, the basic unit of an image is "shot", which is not the smallest division unit of film and television language, but it is the basic unit that is convenient for research and analysis. Strictly speaking, there is no minimum segmentation unit in a certain linguistic sense in film and television language. But in the actual analysis of the film, in order to facilitate the analysis, we take the lens as the basic unit. Secondly, photography plays an important role in the formation of images, which determines most important aspects of film and television language. For the image formation of a film and television work, the factors contributing to the image formation include all aspects, but the most important thing is photography. Moreover, it is precisely because of the appearance of cameras that colorful moving images taken by cameras are possible. Finally, the basic elements of the image are formed. Hungarian film theorist Bela Balazs once compared film art to a language different from drama. The characteristics (elements) of this "new language" are as follows: ① In a scene, the film can arbitrarily change the distance between the viewer and the object on the screen, thus producing different scenes. ② A complete scene can be divided into different parts (shots). ③ In the same scene, the shooting angle and the focal length of the depth lens can be changed. ④ Montage: Connect the shots in a certain order to form a complete picture time series.