index‎ > ‎

P041 DYNAMIC RANGE & CLIPPING

REVIEW ACTIVITIES:

VOCABULARY:  click links for detailed glossary page:

  • EXPOSURE:  the amount of light in "stops" a camera captures to determine how light or how dark the image will appear, based on aperture, shutter speed and ISO settings

  • STOP: the unit of exposure, a doubling or halving of the amount of light entering the camera when changing aperture, shutter speed and ISO

  • OVEREXPOSED: a photograph which appears too white or washed-out to see details or textures in all or parts of the image

  • UNDEREXPOSED: a photograph which appears too dark to see details and textures in all or parts of the image

  • DYNAMIC RANGE: the measurement (in stops) between the whitest whites and the blackest blacks in an image

  • CLIPPING: loss of detail and texture in dark or bright areas of an image when the exposure exceeds the dynamic range of a device

  • BLOWN OUT HIGHLIGHTS: loss of detail and texture in important bright areas of an image where the pixels are pure white because they were overexposed

  • CRUSHED BLACKS: loss of detail and texture in important dark areas where the pixels are pure black because they were underexposed

  • BRACKET: a technique of taking several shots of a scene using different camera settings to ensure getting a good image

  • HDR: a software process that combines bracketed images of a scene to expand and enhance shadow and highlight detail

  • HISTOGRAM: A bar graph to evaluate brightness and contrast, showing pixels exposed in an image with 256 shades from black (L) to white (R)

UNIT RESOURCES:

P041 DYNAMIC RANGE & CLIPPING




Comments