What do you mean by color electronic photos?

Digital photos are photos in electronic format. As the name implies, photos stored in the form of electronic files have no previous photographic negatives.

A color photo is a photo of a person or thing that is exposed under a photographic negative with photosensitive paper and then developed and fixed. It can clearly reflect the clear color of the predecessor or thing, and is called a "color photo".

brief introduction

Color printing is a photo printed on colored paper, and the printing of transparent film is not called color photo. There are two ways to take photos: negative positive and positive. Negative and positive printing is very cheap. It is easy to compensate color when printing, and it is mostly used for public printing and large-scale amplification.

In 180 1 year, British physicist Thomas Young (1777–1829) published his research on "color", saying that human eyes can have three kinds of "color perception" of visual nerves: red light, green light and purple light. Furthermore, it is claimed that the three basic colors of red, green and purple are "mixed" in nature, so we can feel many different colors.