C


B
background

The area in the rear of the image appearing behind the subject. See also depth of field, foreground.



backlighting

A light source that faces toward the lens of the camera emanating from behind the subject. Backlighting makes the outline of the subject stand out from the background, often resulting in a silhouette. See also frontlighting, sidelighting, silhouette.



Bayer Pattern color filter array

A specific arrangement of red, green, and blue lenses attached to the surface of a CMOS sensor. There are roughly twice as many green lenses as blue and red to accommodate how the human eye perceives color. See also complementary metal oxide semiconductor (CMOS), digital image sensor.



bit-depth

The number of tonal values or shades of a color that a pixel is capable of displaying. The number of bits is equivalent to the number of possible tonal values. See also channel, color depth.



bounce lighting

Natural and unnatural light sources (flash and tungsten) redirected toward the subject using a reflective surface to give the effect of natural light and to fill in shadows. See also color temperature, fill-in lighting, white balance.



bracketing

Taking three shots of the same image according to the aperture and shutter values recommended by the light meter: one shot underexposed, one shot dead-on, and one shot overexposed. The aim is to ensure the scene is captured with the correct exposure.



Browser

The central storage area in Aperture, which displays thumbnails for all the photos in a given project, folder of projects, or album. Images can be selected, moved, copied, and sorted in the Browser.



burning

Exposing a portion of the image longer than the rest of the imagethe opposite of dodging. Burning a portion of the image results in that area being darker than other areas.






Apple Pro Training Series(c) Aperture
Apple Pro Training Series: Aperture
ISBN: 0321422767
EAN: 2147483647
Year: 2004
Pages: 185

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