Adobe Photoshop CS Design Professional COLORS ADJUSTING.
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Adobe Photoshop CS Design Professional
COLORSADJUSTING
2Adjusting Colors Chapter J
Correct and adjust color
Enhance colors by altering saturation
Modify color channels using levels
Create color samplers with the Info palette
Chapter Lessons
3Adjusting Colors Chapter J
Use color-enhancing tools to change the mood or personality of a color by changing its tonal values
Tonal values (also called color levels):– Numeric values of an individual color– Used to duplicate a color
Enhancing Color
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Use color adjustment tools to specify exactly how colors should appear when printed
Colors levels are modified by making adjustments to the input and output levels
Reproducing Colors
5Adjusting Colors Chapter J
Correct and Adjust Color Making Color Corrections
Balancing color:– Add and subtract colors from those
already existing in a layer– Correct oversaturated or
undersaturated color– Remove color casts from an image
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Color Balance Dialog BoxContains three sliders:– Cyan-Red– Magenta-Green– Yellow-Blue
Adjust colors by dragging sliders or typing values in the Color Levels text boxes
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Modifying CurvesUse the Curves dialog box to alter the output tonal value of any pixel input
Change as many as 16 points along the 0-255 scale in the Curves dialog box:– Horizontal axis: original intensity
values (Input levels)– Vertical axis: modified color values
(Output levels)
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Curves dialog box
Active Setting
Values for Active Setting
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Analyzing ColorsCreate an adjustment layer
Experiment with color corrections:– Adjust the color sliders and view
changes to the image– Modify the curves
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Variations Dialog Box
In the Variations dialog box, view thumbnails of color variations while making color adjustments
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Enhance Colors by Altering Saturation Understanding Saturation
Purity of a particular color
The higher the saturation level, the more intense the color
Modify color saturation using:– The Hue/Saturation dialog box– Sponge tool
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Using the Sponge Tool
Use to increase or decrease the color saturation of a specific area within a layer
Sponge Tool settings include:– Brush size– Saturation or de-saturation levels– Speed with which the color flows into
or from the Sponge Tool
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Saturation ExampleReds
Saturated
Before After
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Understanding Hue
Hue is the amount of color that is reflected from an object– Assigned a measurement from 0 to
360 degrees– Described in terms of tints or shades
(red, yellow-green, blue, gold, etc.)
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Adjusting Hue/Saturation
In the Hue/Saturation dialog box use the following sliders:– Hue– Saturation– Lightness
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Converting to Grayscale
Use the Hue/Saturation dialog box to apply grayscale tones to an object in an image
Object in Grayscale
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Modify Color Channels Using Levels Using Levels
Use the Levels dialog box to make adjustments across a tonal range:– Uses the composite color channel or
individual channel
The Levels feature uses a histogram and displays light and dark color values on a linear scale
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HistogramsA graph that represents the frequency distribution of colors in an image
Adjustments are made to the input and output levels
Plotted data indicates the total number of pixels for a given tonal value
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Levels Dialog Box
Histogram showing
plotted data
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SlidersLevels dialog box contains six sliders that are used to make color adjustments:– Shadows slider– Midtones slider– Highlights slider– Output shadows slider– Output highlights slider
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Create Color Samples with the Info Palette Sampling Colors
Use the Color Sampler Tool to sample and store up to four distinct color samplers– Apply each of the four color samples to
an image– Use the samplers to make color
adjustments
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Color SamplersEach sample represented by a number
Sample 1
Sample 2
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Info PaletteDisplays the following information:– Actual color values for current color mode
– CMYK values
– X & Y coordinates of the pointer location
– Width and height of a selection
Info palette expands to show color measurement information when a color sample is created
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Info Palette with Color Samplers
RGB Color Values
Pointer Coordinates
CMYK Color Values
Width & Height
Color Samplers
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Manipulating Color Samplers
Move a color sampler by dragging the sampler icon to a new location:– Color value information is updated
in the Info palette
Delete any of the samplers
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Chapter J TasksUse tools to make color corrections
Balance colors
Modify curves to alter output tonal value
Understand and modify hue and saturation
Use the Levels dialog box to correct shadows and highlights
Sample colors and use the Info palette
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