Study On The Classical Technology And Practice Of Digital Image

It has been more than 170 years since Daguerre invented photography in 1839.At first,the photography was born for an auxiliary means of painting.During the development of photography,due to the limited science and technology,technique,the development of photography has gone through the earliest Daguerreotype photography,wet-plate photography,and later dry-plate photography,until current portable film.At the beginning of 21^st century,digital photography began to spread.The advent of the Internet age has also accelerated the spread of photography among the public.There are hundreds of millions of new photos every day around the world.Although there is no technical barrier to photography from the technical level,every ordinary person can take a realistic photo by a digital device with shooting performance,such as a mobile phone.However,the warmth of the photography itself conveyed by the photographer previously is gradually lost.The development of digital image is irreversible.Although it can't replace traditional photography at the present stage,it has already become the mainstream of photography,no matter in the cognitive level,social communication,artistic means or even auction market.In the new century,images have become the most common means of expression for global artists,because photography can successfully peel off the surface to reveal the truth.