What is the principle and process of photo developing?

The principle of photo developing is simply the silver salt photo paper in a closed dark room, by laser exposure, the paper on the silver (silver halide) sensitized, and then one of the coloring agents appear, and finally by the chemicals rinsed off the excess material and the formation of color images, this is a chemical reaction, is a dynamic between the molecules, a kind of image painted by the light.

Photo developing and belonging to the digital printing, digital printing technology belongs to the photographic industry's cutting-edge technology, digital printing is digital input, image processing, image output of the entire process. Digital printing using the method of color expansion, digital printing digital image exposure on color photo paper, the output of color photographs, digital printing is a high-speed, low-cost, high-quality production of digital photographs.

Expanded Information:

Developing a photo is different from any other kind of image imaging, it's a chemical reaction, which allows the color to be generated slowly from the inside out, so its The color has a strong stability. In addition, developed photographs have a long history of preserving images for a long time, so since its birth, it has always assumed the responsibility of recording important historical moments, major historical events and other images of precious significance in human civilization.

Printing photos with light as a brush, its color is natural, delicate, realistic, with excellent clarity and reproduction, image stability does not fade, has a long history.

It is widely used in residents' daily life, travel, party retained in a variety of images; schools, institutions, units retained in the group photo; couples get married to take wedding photos; for a variety of documents for the document photo; professional photographers and journalists to shoot the precious images; high-end luxury car brochures, high-end restaurant menus, and other professional use of commercial advertising.

Baidu Encyclopedia - Photo Printing