Traditional Culture Encyclopedia - Photography major - What does graininess mean?

What does graininess mean?

The lines displayed in fonts, pictures or videos are not smooth enough and are jagged. Because the screen resolution is low; If the resolution is low and the screen is large, there will be serious graininess; High resolution, small screen, very delicate picture. The concept of graininess comes from traditional photos. The colors of the photos are all silver particles, which are generally invisible by visual inspection. But sometimes in order to pursue a certain effect, the particles will be made very thick on purpose to show rough styles and ideas, that is to say, the photos are grainy.

The lines displayed in fonts, pictures or videos are not smooth enough and are jagged. Because the screen resolution is low; If the resolution is low and the screen is large, there will be serious graininess; High resolution, small screen, very delicate picture. The concept of graininess comes from traditional photos. The colors of the photos are all silver particles, which are generally invisible by visual inspection. But sometimes in order to pursue a certain effect, the particles will be made very thick on purpose to show rough styles and ideas, that is to say, the photos are grainy.

Photo: A photo refers to a photo of a person or thing exposed with photosensitive paper under a photographic negative and then developed and fixed. The first chapter of Ba Jin's Death wrote: "There is a big picture frame hanging in the middle of this wall, depicting a kind woman in her forties."

Principle: A photo of a person or thing made by exposing photosensitive paper under a photographic negative and then developing and fixing it. This process is completed in a completely closed darkroom, and it is an image formed by scanning and irradiation of red, green and blue (RGB) laser. Photosensitive imaging technology magically converts RGB laser into images, and the color of photos grows from the molecular size in photographic paper, instead of digital printing, inkjet printing and other output methods, which are formed by ink accumulation. Photosensitive imaging technology makes the color information of each pixel in the photo complete.