Konica Minolta IV instruction manual Selective-color palette, About RGB and CMY

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Selective-color palette

Selective-color correction is an advanced technique to refine the colors in the image. A cyan, magenta, yellow, and black channel can be used to adjust the six separate color groups in the image: red, green, blue, cyan, magenta, and yellow. The black- level slider controls the brightness of the selected color group.This type of correction is effective in changing a specific color without influencing any of the other colors in the image. For example, if the sky looks purplish instead of blue, magenta can be reduced in the blue color group. See page 2 for a selective-color example.

Click the selective-color button to open the palette.

Select the color group to be corrected from the drop-down menu at the top of the window.

Drag a slider or enter a value in a text box to adjust the selected color group. More than one slider can be used to adjust the selected color. Changes will be reflected in the display image. Click the reset button to cancel any changes.

About RGB and CMY

The RGB color model is an additive process that uses the primary colors of light: red, green, and blue. An additive color system mixes the three colors to recreate the entire spectrum of light. If all three colors are mixed, white light is produced. Television sets and computer monitors use RGB to create images.

The CMY color model is a subtractive process that uses the secondary colors: cyan, magenta, and yellow. A subtractive color system recreates color with pigments and dyes to absorb unwanted color. If all three colors are mixed, black is produced. Film- based photography is a subtractive process. Printing technology is also a subtractive process, but, unlike photographic systems, it requires a black channel (K). Because of the imperfections of printing inks, cyan, magenta, and yellow cannot produce a true black when mixed, printers use what is called a four-color process (CMYK) to reproduce images.

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Contents Page Selective-color palette Tone-curve correctionsBefore YOU Begin For Proper and Safe USE DiMAGE Scan Dual Table of Contents Page Table of Contents Names of Parts InstallationBefore installing the DiMAGE Scan Utility DiMAGE Scan system requirements Adobe Photoshop Elements Additional memory requirementsWindows Page Macintosh Page Connecting the USB cable Scanner SetupBefore connecting the scanner to a computer Turning on the scanner Connecting the AC adapterDisconnecting the scanner Loading 35mm film strips Where is the emulsion?Loading the Film Holders Handling filmLoading a film holder into the scanner Loading mounted slidesUsing the APS Adapter AD-10 sold separately APS Ejecting a film holderDimage Scan Launcher Launching the Easy Scan Utility Easy Scan UtilityScanner Notes Macintosh Using the Easy Scan UtilityOn next Easy Scan Utility Page Scanning basics Basic ScanningLaunching the DiMAGE Scan Utility Main window and index scan tab Scanner setupSelecting index thumbnails Making an index scanFit-to-window button Flip and rotate imagesMaking a prescan Main window and prescan tabCHP button APS film Grab toolMagnifying tool Auto croppingMaking the final scan Tiff BMP Pict Main window and image-correction tab Basic Image ProcessingPixel Polish Auto Dust Brush retouching level Auto Dust BrushVariation palette Brightness, contrast, and color balance palette Green An introduction to colorUndoing and redoing image corrections Comparing pre and post-correction imagesQuitting the DiMAGE Scan Utility Advanced Scanning Setting scanner preferencesPage Exposure-control tab Loading exposure settings Saving exposure settingsReverse frame order More index scan functionsLoading an index file Saving the index thumbnailsSaving an index file Point AF Autofocus More prescan functionsManual focus Manual cropping AE area selection AutoexposureInputting scan settings manually About resolution and output size Scan setting examples Deleting a Job Saving scan settings as a JobMore image-processing tools Advanced Image ProcessingPrescan display Sample display area Digital Grain DissolverTone curve and histogram palette Using tone curvesDrawing tone curves by freehand About the tone curve Short guide to tone curve correctionsIncreasing image contrast Histogram corrections Tone curve / histogram auto setting Konica Minolta History Short guide to histogram correctionsPage White, gray, and black point corrections Tracking image corrections Snapshot button Setting the white and black-point valuesHue, saturation, and lightness palette About RGB and CMY With mask Original image Unsharp maskLoading image-correction Jobs Saving image correctionsCustom Wizard Page Batch Scan Utility Page Advanced Batch Scan setup Page Color Matching Setting the output color spaceNtsc CIE RGB Output color spacesScanner color profiles Setting the monitor ICC profileOutput Color Space Monitor RGB Color matching recommendationsAuto Dust Brush PLUG-IN Before installing the plug-inInstallation Windows Page Installation Macintosh Using the Auto Dust Brush plug-in Auto Dust Brush PLUG-IN Glossary of common terms AppendixUninstalling the DiMAGE Scan Software Windows Installed files and foldersJob file list 35mm Troubleshooting Checking software installation Windows Technical Specifications Record keeping Warranty and product registrationTechnical support Image processing Image Data SheetHue corrections