Many digital cameras have a screen LCD, reason why you can see your photography at the moment. This is one of the great advantages of a digital camera - you have a sample at the time of the image that you have captured. By all means, to see the image in your camera would lose its enchantment if that outside unique one that you could do. You need to be able to load the film in your computer or to directly send it to a printer. There are several ways to do this.
Some earlier generations of digital cameras had a fixed storage in their interior. It was needed to connect the camera directly to a computer with cables to transfer the images. Although nowadays, the majority of the cameras is able to connect by means of ports series and parallels, SCSI, USB or Firewire, usually also uses some type of extraíble storage device.
The digital cameras use a number of storage systems. They are something similar to re-usable digital films, and use a species of card reader to transfer the data to the computer. Many are fixed or extraíbles flash memory. Some manufacturers of digital cameras usually develop to their own memories flash in property, including cards SmartMedia, CompactFlash, etc. Other extraíbles storage devices are:
- Hard disks
- CDs and DVDs of read/write
- The diskettes
In order to completely take advantage of the space storage, almost all the digital cameras use the same class of compression to diminish the size of the files. Two functions of the digital images make this compression possible. One is the repetition and the other is irrelevance.
Imagínate that in a photo, some schemes are developed in the colors. For example, if a blue sky takes a thirty percent of the photography, you can be certainly some bluish shades are time and time again going to be repeated. When the compression routines take advantage schemes that are repeated, there is no loss of information and the image can be reconstructed exactly as it were recorded. Unfortunately, this much more does not reduce the archives that the 50 percent, and some times nor it approaches that average.
The irrelevance has in its origin something more deceptive. A digital camera records more information of the one than the human eye can easily detect. Some routines of compression benefit from this factor to discard some of the portions of more irrelevant data.