Konica Minolta IV instruction manual An introduction to color, Green

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An introduction to color

In photography, red, green, and blue are the primary colors. The secondary colors, cyan, magenta, and yellow, are made from combining the primary colors: cyan = blue + green, magenta = blue + red, and yellow = red + green. The primary and secondary colors are grouped in complementary pairs: red and cyan, green and magenta, and blue and yellow.

MAGENTA

BLUE

RED

YELLOW

GREEN

CYAN

Knowing the complementary colors is very important in color balancing. If the image has a specific color cast, either subtracting the color or adding its complementary color will create a natural looking image.

RED	Decrease the amount of red.
GREEN	Decrease the amount of green.
BLUE	Decrease the amount of blue.
If the image is too	Increase the amount of red.
CYAN	Increase the amount of red.
MAGENTA	Increase the amount of green.
YELLOW	Increase the amount of blue.

Adding or subtracting equal parts of red, green, and blue will have no affect on the color balance. However, it can change the overall image brightness and contrast. Usually, no more than two color channels are needed to color balance an image.

Color balancing is a skill that develops with practice. While the human eye is extremely sensitive in making comparative judgements, it is a poor tool when making absolute measurements of color. Initially, it can be very difficult to distinguish between blue and cyan, and red and magenta. However, adjusting the wrong color channel never improves an image; subtracting blue from an image that is too cyan will give a green cast to the image.

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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 the Film Holders Where is the emulsion?Handling film Loading 35mm film stripsLoading 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 tabMagnifying tool Grab toolAuto cropping CHP button APS filmMaking 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