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Home  DPOF EXIF Formats |
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DPOF EXIF File Formats
DPOF (Digital Print Order format) is a format which allows the user of a digicam to define which captured images on the storage card are to be printed, together with information on the number of copies or other image information.
It usually consists of a set of text files in a special directory on the storage card. This option can be assessed through one of the menu modes on the camera. The storage card can then be taken to a print shop or output through compatible desktop printers at home.
The EXIF (Exchangeable Image File) format is used by nearly all digital cameras to store extended camera information. It contains information about the time and date that an image was taken, together with exposure information such as ISO-speed, shutter time and aperture used. When an image is compressed by EXIF it stores the information in the header of each JPEG file. This means that any program that supports JPEG files, which includes all web browsers and image editing applications can read the information. The EXIF format uses RGB as the default color space.
BMP RAW File Formats
Some digicams let you save the raw image data straight from the CCD in an uncompressed file format called CCD RAW.
This format contains all the information as captured by the CCD as no in-camera processing is performed.
It can be transferred to a computer where the data can be worked on to produce the final image.
Advantages are its smaller file size as written by the camera, shorter intervals between exposures,
plus of course optimum image quality since no data is lost through compression.
A disadvantage is that it can?t be opened by image manipulating programmes without using a plug-in such as TWAIN.
Canon was the first to introduce this format, but as yet there is no universally accepted RAW format,
each manufacturer maintains his own standard.
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