IBM Ricoh FB750 manual Glossary of Imaging Terms

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Glossary of Imaging Terms

Some of the terms here are not used in the scanner or camera driver or application software included with your scanner or camera. The information here is for your information only and does not imply support for any imaging task or application.

3rd-Party Software

Application software of many kinds is generally available from your computer store or other vendor. Any application that was not supplied with your scanner is considered 3rd party. Info does not directly support 3rd party software. There are many general guidelines to using all scanning applications (see Scanner Operation).

16-bit & 32-bit

This refers to the operating system or an application written for a specific operating system. Windows 3.x is 16-bit and Windows 95 is 32-bit (to be precise a 32-bit emulation over 16-bit). Programs that work in both Windows 3.x and Windows 95 are 16-bit (also called Legacy programs). Programs written only for Windows 95 are 32-bit and will not work in Windows 3.x. When you are choosing a source, if you are using a 16-bit application, you should choose (16). If you are using a 32-bit application, you should choose (32). 3rd party software can be either 16-bit or 32-bit and an appropriate source should be chosen.

36-bit color, RGB

Color images composed of three 12-bit channels: red, green, and blue (RGB). Trillions of color combinations are possible, providing for more vivid color reproductions with subtle gradations of hue. Even though a picture is scanned with 36-bit hardware, the image output will be 24-bit due to limitations of digital imagery once it is on your computer. 36-bit color has nothing to do with the operating system.

36-bit color, CMYK

Color images composed of four 9-bit channels: cyan, magenta, yellow, black (CMYK). Trillions of color combinations are possible, providing for more vivid color reproductions with subtle gradations of hue. 36-bit color has nothing to do with the operating system. At this time (May 98), none of the ImageReader scanners or other imaging devices are CMYK enabled. There are many graphics programs that will convert RGB color to CMYK.

32-bit color

Color images composed of four 8-bit channels: cyan, magenta, yellow, black (CMYK). Over 50 billion color combinations are possible, providing for more vivid color reproductions with subtle gradations of hue. 32-bit color has nothing to do with the operating system. At this time (May 98), none of the ImageReader scanners or other imaging devices are CMYK enabled. There are many graphics programs that will convert RGB color to CMYK.

30-bit color

Color images composed of three 10-bit channels: red, green, and blue (RGB). Over 50 billion color combinations are possible, providing for more vivid color reproductions with subtle gradations of hue. Even though a picture is scanned with 30-bit hardware, the image output will be 24-bit due to limitations of digital imagery once it is on your computer.

24-bit color

Color images composed of three 8-bit channels: red, green, and blue (RGB). With 24-bit color, it is possible to have over 16 million possible color combinations providing for a more photo-realistic image. Also called True Color.

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Contents Model FB750 ImageReader PowerScan User’s GuideCopyright Document WarrantyProduct Warranty TrademarksTable of Contents Limited Warranty MaintenanceTroubleshooting SpecificationsIntroduction WelcomeUser’s Guide Bold/Italics Assistance What is TWAIN?Page System Requirements Scanner SetupPackage Contents Connecting the Scanner to the ComputerUnlocking the Scanner Connecting a Printer to the Scanner Connecting the Power Adapter to a Power SupplyType D\Setup.exe or D\Autorun.exe Scanner Driver and Application Software InstallationInstallation Program Starting the Installation ProgramDestination Directory Setup TypeScanner Driver Scanner ModelUser Information Installing filesPC Compatibility Information Restart WindowsInfoCenter 32 Complete, installing Headliner PictureMall PictureFun! Windows 95, 98 or NT only InfoCenter Lite File AssociationsRegistration User Information Installation Options Adobe Acrobat Reader Installation PathsUninstalling Selecting a Source in Scanning Applications Scanner OperationDocument Placement Starting the ScanTwain User Interface, scanning controls Image Type Image Types and Scanning ModesOriginal Scan ModeResolution Image ControlFunction Recommended Scanning Resolution and Mode by TaskDescreen Special ControlsScale Custom ScaleTool Bar File SettingsMenu Bar Histogram/Tone MapZoom Scanning ButtonsHelp PreviewScan Preview WindowInfoCenter 32 and InfoCenter Lite Included Applications and Reading the Software ManualsPictureFun! Windows 95, 98, or NT PictureMall InfoCenter Lite Applications Windows 3.1 or When to Use Which ApplicationPage Maintenance PrecautionsCleaning the Glass Troubleshooting Frequently Asked Questions FAQSetup & Installation Get a scanner test fail error when I attempt to scan Windows Scanner OperationWhen I go to scan, I get a cannot access Twain driver error Color Grayscale Black and white Why do my scanning results seem dark?What is the function of the pass-through port? Printer Setup and OperationFax on demand 408 Click Spooler Settings Select Print Directly to the PrinterBulletin Board Service BBS 408 Technical SupportName Phone Number Specifications FCC Radio Frequency Interference StatementModel FB750 According to EN45014 EC Declaration of ConformityAppendix Tips & Hints for Using Your ScannerClick Save As or Save Image As Saving to Floppy Diskettes or for Email Glossary of Imaging Terms BBS BiosBPP CISCmos CRT CPUECP DMAEPP HSV IRQ IsisISP MPEG-3 MimeMPEG-1 MPEG-2PMT PALRAM POP3Secam ROMVGA SmtpSPP TwainFile Formats JPG, Jpeg Info Service Center Division Street Campbell, CA Info Limited Warranty
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