A camera incorporating an image sensor which outputs a digital

digital still camera (DSC)

signal representing a still picture, or records a digital signal

representing a still picture on a removable medium, such as a

 

 

memory card or magnetic disk.

 

 

dynamic range

cf. ISO DSC dynamic range, colour gamut, luminance ratio.

 

 

 

A compressed file format for digital cameras in which the images

Exif/JPEG

are compressed using the baseline JPEG standard, described in

ISO 12234-2, and metadata and thumbnail images are stored

 

using TIFF tags within an application segment at the beginning

 

of the JPEG file.

 

 

 

A numerical value that is inversely proportional to the exposure

exposure index

provided to an image sensor to obtain an image. Images

obtained from a camera using a range of exposure index values

 

 

will normally provide a range of image quality levels.

 

 

 

A numerical value calculated from the exposure provided at the

 

focal plane of an electronic camera to produce specified camera

ISO speed

output signal characteristics using the methods described in the

referenced standard. The ISO speed should correlate with the

 

 

highest exposure index value that provides peak image quality

 

for normal scenes.

 

 

JPEG

Joint Photographic Experts Group. An image compression

method defined in ISO/IEC 10918-1.

 

 

 

protocol

Defined mechanisms for exchanging data between devices.

 

 

 

A device-specific four byte unsigned integer (UINT32) that

StorageID

represents a unique storage area that may contain data objects.

The most significant sixteen bits of a StorageID represents the

 

PhysicalStorageID, while the least significant sixteen bits of a

 

StorageID represents the LogicalStorageID.

 

 

USB

Universal serial bus, a digital interface for connecting up to 64

devices in a tiered-star topology. See http://www.usb.org.

 

 

 

 

The adjustment of electronic still picture color channel gains or

white balance

image processing so that radiation with relative spectral power

distribution equal to that of the scene illumination source is

 

 

rendered as a visual neutral.

 

 

Source: ISO/WE 12231 Photography-- Electronic still-picture cameras -- Terminology

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