Glossary
Measurement of an image’s resolution. For example, 92 DPI means 92 dots horizontally and 92 dots vertically, which equals 8,
464 dots per square inch. More dots per inch result in higher resolution and image quality.
dynamic range
The dynamic range of an image is directly related to the dynamic range of your digital camera's sensor. If your digital camera's
sensor has a large dynamic range it can capture the darkest shadows and brightest highlights at the same time, without clipping
the shadows or highlights. (RAW images preserve the dynamic range of your digital camera's sensor.) Adjusting the tonal range
of the image changes how the dynamic range of the image is represented on a monitor or in a photo.
E
elevation
Height of an imaginary light source over an image. The elevation of the light source works in conjunction with azimuth to
generate a three-dimensional emboss effect.
encode
Writing (or saving) a file format.
encryption
Method of converting data into a secure format. You need a digital password or key to read an encrypted file.
EXIF (Exchangeable Image File)
Standard for storing information, primarily with images that use JPEG compression. Most digital cameras create EXIF information
and embed it in the image file. For example, EXIF information can include details about shutter speed and whether a flash was
used.
export
Moving data from one application to another. The exporting application places the data in a format that the other application
understands.
exposure
Exposure is the amount of time that your digital camera's sensor is exposed to light.
F
feather
Softening image edges to blend them into the background.
file listing
In ACDSee, a report of the files currently displayed in Manage mode.
file format
Medium for encoding information in a file. Each type of file has a different file format that specifies how it organizes the
information it contains.
filter
Program that can apply an effect to an image, such as an embossed appearance or a sepia tone.
fisheye distortion
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