HP SCP Software for s manual Lab Color Space

Page 73

Lab Color Space

The LAB color space displays the colors in a sphere with three axes:

the L-axis the a-axis the b-axis

The L-axis ranges from 0 to 100 and controls the luminance.

A and b-axes determine the color. They range from -127 to 127. The following diagram shows how the axes are positioned.

The LAB model is built on the insight that the human eye can see some colors distinctly, while it can perceive others only vaguely.

73

Image 73

Contents SCP reprocontrol for HP Manual Content Create USER-DEFINED Formats REPROCONTROL.CLIENT Main Applications Setting the Black and White Points with the Pickers Emove Done JOB Records After System Requirements Introduction / RequirementsHardware Requirements Operating SystemsPrinter installation InstallationInstallation of the Hardlock Installation of the Program Reprocontrol.server Page Login Keycode Entry Printer Configuration Hardware ConfigurationPrinters / Queues Delete Printer Single Configuration DialogsName / Connection Configuration WizardPrinter Name Windows SpoolingPlacement Alignment RotateRollwidth tolerance Technical Label Define Medialist Configuration / Loaded ConsumablesDefault Settings for Print Options Page Calibration for RIP CalibrationExport to Library Profile Library Get ProfilesOn-site Calibration Spectrophotometer Calibration Target Print TargetEdit media parameters Reset media parametersDelete Calibration Edit size correctionTarget Selection Tab General Create QueueQueue PrinterPicture Edit Settings Use Printer Default SettingsMedium Set Print SizeCopies Tab Output OptionsSet Output Size Queue description Tab QueuePriority De-/Activation of the QueueListen to LPR Set User Rights to change QueueListen to raw port Tab Hpgl Load Sharing Create Printer ClusterSimulation of a multiroll printer Cost optimizingPage Max. Print size Distribute jobs among similar printers of the cluster Wait for best fitting Printer when busyAllow monochrome prints on color printers Tab General PreferencesPaper Format Create user-defined formatsShow warning when configuration changes Simple filter editor by Default for RIPShow warning when unsaved changes will be deleted UnitUse compressed transfer File Menu Bar OptionsFiles to Print Selection ExitPrinters/Queues ConfigurationPreferences Save preset Load presetSet as default Apply Settings GloballyChange password Preview ViewShow button caption Show preflightEdit Switch activeDown Activate allInfo ActionsHelp Basics Reprocontrol.client main applicationsFeatures of the Toolbar Reload Job Start new jobPreview RIP Preview Reset AOI Setting Apply FilteringSelect an Area Edit AOISoftproof Show Gamut WarningFile Edit Images and OutputUse Color Management Print Size Original SizeFilter Print ModeBrightness Pen Settings Change Pen Color User Pen SettingsSave / Load Pen Parameters Functions and Structure of the Filter Editor Filter EditorPreview of the Filter Editor Histogram Black Point Adaptive Setting the Black and White Points with the PickersWhite Point Adaptive StaticContrast Text/BackgroundDespeckling Tab Postprocessing Black & White ModeTo use this filter Inverted Hole FillingGamma Gamma sliders Tab Gamma Correction Color Mode without Color ManagementGray Balance Sliders for the White Point Tab Enhancement Color Mode with Color ManagementNone Tab Special Filter All Modes except of Black & White ModeAdaptive Sharpness LevelLimit Hint Using the adaptive sharpness filterDisplay Transfer Function Sharp SmoothFilter Radius µm Tab Color Adjust Color Mode with Color Management Tab Color Exchange Color Mode with Color Management Lab Color Space Reprocontrol.WinDriver Tab Settings WinDriver SettingsUse last settings Tab LogUsing the WinDriver Tab Jobs Reprocontrol.monitorButton commands Tab Connection Tab Printers/QueuesMenu Options Keycode Tab ConfigurationJob Database Unit Summary CosttrackerDetails Page Export PreferencesCalibration of the costtracker Reprocontrol.backup