What is the basic principle of photographic picture structure?

1. Balance and symmetry: Balance and symmetry are the basis of composition, and their main function is to stabilize the picture. The sense of stability is a visual habit and aesthetic concept formed by human beings in their long-term observation of nature. Equilibrium and symmetry are not average, but a logical proportional relationship. Although the average value is stable, it lacks change. Without change, there is no aesthetic feeling, so the most taboo of composition is that the picture is evenly distributed. Symmetry has a strong sense of stability, and symmetry can make the picture feel solemn, solemn and harmonious.

2. Contrast: Clever contrast can not only enhance artistic appeal, but also clearly reflect and sublimate the theme. Contrast composition is to highlight the theme and strengthen the theme. Contrast is varied and ever-changing, but they are the same.

3. Viewpoint: Viewpoint composition is to attract the audience's attention to the center of the picture. Viewpoint is the name of perspective, also called vanishing point. We stand anywhere and look into the distance. There is a clear line where heaven and earth meet or where water and sky meet. This line is just parallel to the eyes. This is the obvious horizon. This line varies with the height of the eyes. The higher a person stands, the farther he looks up.