Graphics Programs Reference
In-Depth Information
About saving files in Camera Raw
Every camera model saves raw images in a unique format, but
Adobe Camera Raw can process many raw file formats. Camera
Raw processes the raw files with default image settings based on
built-in camera profiles for supported cameras and the EXIF data.
You can save the proprietary files in DNG format (the format
saved by Adobe Camera Raw), JPEG, TIFF, and PSD. All of
these formats can be used to save RGB and CMYK continuous-
tone, bitmapped images, and all of them except DNG are also
available in the Photoshop Save and Save As dialog boxes.
The DNG (Adobe Digital Negative) format contains raw image
data from a digital camera and metadata that defines what the im-
age data means. DNG is meant to be an industry-wide standard
format for raw image data, helping photographers manage the
variety of proprietary raw formats and providing a compatible
archival format. (You can save this format only from the Camera
Raw dialog box.)
The JPEG (Joint Photographic Experts Group ) file format is
commonly used to display photographs and other continuous-tone
RGB images on the web. Higher-resolution JPEG files may be
used for other purposes, including high-quality printing. JPEG
format retains all color information in an image, but compresses
file size by selectively discarding data. The greater the compres-
sion, the lower the image quality.
TIFF (Tagged Image File Format) is used to exchange files
between applications and computer platforms. TIFF is a flexible
format supported by virtually all paint, image-editing, and page
layout applications. Also, virtually all desktop scanners can pro-
duce TIFF images.
PSD format is the Photoshop native file format. Because of the
tight integration between Adobe products, other Adobe applica-
tions such as Adobe Illustrator and Adobe InDesign can directly
import PSD files and preserve many Photoshop features.
Once you open a file in Photoshop, you can save it in many dif-
ferent formats, including Large Document Format (PSB), Cineon,
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