What is the image in the movie?

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.

Generalized images can be divided into three types: ① photographic images. Including all kinds of panchromatic, infrared, color, color infrared and multispectral photographic images obtained by aviation, aerospace and ground photography. Most of them belong to static remote sensing imaging, and the electromagnetic wave energy distribution of ground objects is a continuous two-dimensional function and recorded on film, which is instantaneous surface imaging; ② Scan the image. Including optical images, thermal images or microwave images of ground objects obtained by various aviation and space scanners in the way of object surface scanning or image surface scanning. Such as multispectral scanning images, infrared scanning images, radar images and panoramic scanning images. The image is continuous along the scanning line; But the scanning lines are discontinuous. It belongs to dynamic scanning imaging, that is, point-by-point progressive imaging; ③ Digital image. Obtained by indirect scanning imaging. One is obtained by scanning and digitizing analog images (such as photographic photos) through resampling; The invention relates to a digital video tape playback scanning imaging.