©1999 IEEE VESIT Student Branch Hits :
Webauthor : Saumitra M Das
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PC'S THAT TAKE PICTURES One of the most recent and significant developments in the field of photography has been the arrival of digital photography. Convenient and flexible, computer compatible digital photography is not a replacement for traditional photography, rather it is an alternative fueled by the growing usage of computers in the home and workplace.How does it work ? Digital cameras "paint with light" in a similar way, using a lens, aperture and shutter. In our regular cameras the light is captured on photosensitive films and then later developed into photo prints. But, digital cameras use their electronic image sensors (known as CCDs, or charge-coupled devices) and signal processing technology to convert the light into electronic or digital information. This information (the image) is then compressed so many images can be saved onto the camera's storage device, such as a removable hard drive or memory card. In the latest development these can be saved on our regular 3 1/2" floppies, too. Once saved, it can then be transferred to a computer for manipulation, printing, transmission to another computer via modem or archival storage. Why Go Digital ? Affordability: With digital photography, there are no film costs or processing expenses (paper, chemicals or development costs). Communication: Digital photography makes communication a simple process. A photo can easily be saved to a digital format, put into an Internet Web site, sent as e-mail, or even included as part of an electronic postcard sent to friends from far away. Control: Digital cameras, combined with image manipulation software, let users resize, rotate, cut and paste, recolor, and otherwise manipulate their photos. Deletion:The PCMCIA cards, or digital film, standard with digital cameras allow users to immediately determine if a picture is appropriate and simply delete it to make room for another picture. Duplication: The image can be duplicated over and over without any degradation of picture quality. Ease of use:With digital photography, there's no fuss, no muss!! If a photographer doesn't have time or space or interest in mixing chemicals, the same effects can be achieved using a computer as a digital darkroom. Image storage: PCMCIA cards, or digital film, allow users to store anywhere from 18 to 3,000 images at one time depending on the resolution of the image and the compression used. Immediacy:A user can snap a photo, immediately see it on the digital camera's LCD screen, then instantly transfer it into a computer using a serial or parallel cable or removable PCMCIA cards. Digital images can be produced immediately, either printed or electronically distributed over the Internet. So, where can it be used ? Digital cameras have applications in both the consumer and business market. There are several key uses driving the growth of the digital photography market. There are two very distinct patterns of usage which we observe in the market. The first occurs in the professional publishing markets, where digital image capture is rapidly replacing traditional film in businesses like catalog production, news gathering and advertising, because of its advantages in speed and cost of ownership. Digital cameras are emerging as primarily a new product category, rather than a replacement for film cameras. Digital cameras are the best solution for soft-output activities like e-mailing images or placing them on Web pages. They're also ideal for images included in documents, as the new generation of ink jet printers makes it possible to produce photo quality at very low cost. - POOJA JAYARAMAN |
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©1999 IEEE VESIT Student Branch Hits :
Webauthor : Saumitra M Das |