An introduction to color, Green | Konica Minolta IV instruction

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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Konica Minolta IV instruction manual An introduction to color, Green

Contents

Page Selective-color palette Tone-curve corrections Before 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 requirements Windows 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 strips Loading a film holder into the scanner Loading mounted slides Using the APS Adapter AD-10 sold separately APS Ejecting a film holder Dimage Scan Launcher Launching the Easy Scan Utility Easy Scan Utility Scanner Notes Macintosh Using the Easy Scan Utility On next Easy Scan Utility Page Scanning basics Basic ScanningLaunching the DiMAGE Scan Utility Main window and index scan tab Scanner setup Selecting index thumbnails Making an index scan Fit-to-window button Flip and rotate images Making a prescan Main window and prescan tab Magnifying tool Grab toolAuto cropping CHP button APS film Making the final scan Tiff BMP Pict Main window and image-correction tab Basic Image Processing Pixel Polish Auto Dust Brush retouching level Auto Dust Brush Variation palette Brightness, contrast, and color balance palette Green An introduction to color Undoing and redoing image corrections Comparing pre and post-correction images Quitting the DiMAGE Scan Utility Advanced Scanning Setting scanner preferencesPage Exposure-control tab Loading exposure settings Saving exposure settings Reverse frame order More index scan functions Loading an index file Saving the index thumbnailsSaving an index file Point AF Autofocus More prescan functions Manual focus Manual cropping AE area selection Autoexposure Inputting scan settings manually About resolution and output size Scan setting examples Deleting a Job Saving scan settings as a Job More image-processing tools Advanced Image Processing Prescan display Sample display area Digital Grain Dissolver Tone curve and histogram palette Using tone curves Drawing tone curves by freehand About the tone curve Short guide to tone curve corrections Increasing 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 values Hue, saturation, and lightness palette About RGB and CMY With mask Original image Unsharp mask Loading image-correction Jobs Saving image corrections Custom Wizard Page Batch Scan Utility Page Advanced Batch Scan setup Page Color Matching Setting the output color space Ntsc CIE RGB Output color spaces Scanner color profiles Setting the monitor ICC profile Output Color Space Monitor RGB Color matching recommendations Auto 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 Appendix Uninstalling the DiMAGE Scan Software Windows Installed files and folders Job file list 35mm Troubleshooting Checking software installation Windows Technical Specifications Record keeping Warranty and product registrationTechnical support Image processing Image Data Sheet Hue corrections