The Simple English Wikipedia defines a digital image as a "structuredcollection of information that captures the appearance of shape, color,and other aspects of the scene as captured by a camera, scanner, orother recording device." (6) Digital images refer to the contentof a digital image, the record of the image and its and the objectassociated with the image. Digital images are also called digitalrecreants, representation or rendered images, or record.
That same source has this to say about the relationship betweenDigital Image and Digital Document: "the digital document mayor may not be considered a derivative work of the digital image.The digital document is considered a derivative work where thedigital image is the subject matter and the digital document is theexpression of the subject matter. Similarly, the digital image isconsidered a derivative work of the document or archive file,which is in turn the expression of the subject matter." (6)
Corbis receives its digital images from a number of sources. Themost common are scanned microfiche and EPIC films from graphicarchives and libraries. Images are also purchased from libraries,archives, corporations and individuals. Most of these images comein the form of scanned images, but some are in un-compressed SONYDCRW format.
In addition to the files that appear in the Corbis archive, thereare files that are used for processing purposes. These files inform thearchivists of the when and how the image was scanned. ScanbowFile contains information regarding the scanbow and the LUT that isused during scanning. ScansionCameraFile contains the information about when the scan was performedand about the camera settings used. This information is used to calculate thescanbow. ScannerFile contains information about the scanner,scanner model, location of the scanner location and the adjustmentsused to convert the image into the JPEG encoding. ScannerSettingsFile is used to adjust the location of the image within the scan bowand the differences in the pixel color and luminance values. d2c66b5586