After the photographing is completed, the image information stored in the medium must be read again by the human eye through conversion. The specific method depends on the sensitization means and the characteristics of the medium. For film cameras, there are chemical processes such as fixing, developing, and enlarging. For digital cameras, the picture needs to be processed by a computer and output by other electronic devices.

Many viewers don't enter a website that needs to wait 5 minutes to download, and the 30-second wait time on the Internet is the same as our usual 10-minute wait time. Therefore, it is recommended to avoid using too many images and oversized images in web design. The capacity of the main page should ensure that the average viewer page waits no more than 10 seconds.