adobe photoshop cs4 – illustrated unit f: working with brushes and color effect

Adobe Photoshop CS4 – IllustratedAdobe Photoshop CS4 – Illustrated

Unit F: Working with Brushes Unit F: Working with Brushes and Color Effectand Color Effect

ObjectivesObjectives

Create custom brushes

Paint with automatic brush strokes

Paint a complex mask

Understand the color picker

Adobe Photoshop CS4 - Illustrated

ObjectivesObjectives

Modify color with the Hue/Saturation adjustment

Use the Replace Color dialog box

User the Black & White adjustment

“Colorize” a Black & White adjustment


Working with Brushes Working with Brushes and Color Effectsand Color Effects

Manipulating color in Photoshop tends to take on two different roles: improving realistic color to make a better image Creating special effects with color

There are a variety of techniques used to create color effects these include: adjustment layers, layer masks

and color adjustment utilities

Working effectively with the brush tool and the Brushes panel is important when working with layer masks and adjustments


Creating Custom BrushesCreating Custom Brushes

Photoshop comes with hundreds of brushes on the Brushes panel

Custom brushes can be created that have special characteristics

The two most basic characteristics of a brush are: Diameter-the size of the brush Hardness-how hard or soft the edge of the brush

is



The paintbrush icon for the Brush tool does not change when the size of the brush being used is changed

Preference setting can be changed for painting cursors in the Cursors section of the Preferences dialog box



The Shape Dynamics option, when activated offers greater control for painting, such as using a brush that fades or a brush that respond to pressure

Shape Dynamics are essentially programmed for users using a pressure-sensitive stylus pen instead of a mouse




Brushes panelBrushes panel

Painting with Automatic Brush Painting with Automatic Brush StrokesStrokes

One of the fastest and most effective ways of working with the Brush tool is to use the automatic brush technique

Click the Brush tool, press and hold [Shift], then click in a different location the Brush tool automatically paints a connecting

brush stroke between the two points

Brush settings allow the user to specify the edge of a brush in terms of hardness-100% is the hardest-edged brush and 0% is the softest edged brush


Painting with Automatic Brush Painting with Automatic Brush StrokesStrokes


Connecting point #1 with point #2

Connecting point #1 with point #2

Painting a soft-edge stroke

Painting a soft-edge stroke

Painting a Complex MaskPainting a Complex Mask

Painting masks are done over and over in Photoshop when making color adjustments the user may

want to mask some of the adjustment to manipulate how it affects the artwork

Masking is essential and it is important to develop skills for using the Brush tool effectively

The decisions made, especially for the brush edge hardness have a direct effect on the success of the mask



When painting a mask, the hardness of the brush has a big impact and becomes subjective

When choosing a Hardness setting for the brush to mask an item, the choice is based on the item itself




Masking the edges of the sandals

Masking the edges of the sandals

Making a selection in the mask

Making a selection in the mask

Finished artworkFinished artwork

Understanding the Color PickerUnderstanding the Color Picker

The Color Picker is one of the essential dialog boxes in Photoshop as it allows the user to choose any color available as a foreground or background color

An understanding of HSB is helpful when using Photoshop as the Color Picker is designed in terms of HSB; hue, saturation, and brightness

• like RGB, HSB is a color model and every pixel in Photoshop artwork can be identified by its HSB values



Hue represents the name of the color: red, orange, and blue are hues In the Color Picker, Photoshop offers 360

hues to work with

Saturation refers to the intensity of the color: how close it is to a pure hue

Brightness affects a hue in terms of how light or dark the color is if the Brightness setting is set to 0%, it’s as

though the color is being looked at in a completely dark room—all that is seen is black



In the Color Picker a color can be specified as RGB and HSBRGB and HSB are both color models that Photoshop uses to describe the color of a pixel; but they are independent of each other if looking at an image in terms of color balance,

the image is being looked at in terms of RGB other image evaluations may be in terms of

brightness and contrast in the image and that is HSB




Changing the hue in the Color Picker

Changing the hue in the Color Picker

Changing the saturation and brightness in the

Color Picker

Changing the saturation and brightness in the

Color Picker

Modifying Color with the Modifying Color with the Hue/Saturation AdjustmentHue/Saturation Adjustment

Hue/Saturation is one of the most powerful adjustments in Photoshop; and one that is used often for both practical color improvements and in creating special effects

The adjustment is composed of three values: Hue slider changes only the Hue value of all

selected pixels Saturation slider changes only the saturation,

intensifying or muting the color of selected pixels Lightness slider increases or decreases the

brightness of selected pixelsAdobe Photoshop CS4 - Illustrated


In the Color Picker and on the Info panel, Hue/Saturation is specified in HSB

In the Hue/Saturation adjustment, the sliders are HSL Lightness in the Hue/Saturation adjustment Brightness in the Brightness/Contrast adjustment

is used to brighten or darken an image




Changing the hueChanging the hue

After the Hue/Saturation adjustment

After the Hue/Saturation adjustment

Using the Replace Color Dialog BoxUsing the Replace Color Dialog Box

The Replace Color dialog box is very useful when modifying colors in areas that are difficult to select with the selection tools or layer mask

The tools in the Replace dialog box allow various areas of an image to be targeted based strictly on similarity in color when an area is targeted the dialog box shows a

black-and-white mask, with the white areas representing the pixels that will be affected by any changes that are made



Drag the Fuzziness slider to increase the targeted area or use the Add to sample tool to click a specific area to add

Once the area is targeted, changing the Hue and Saturation values modify the color only in those areas

If wanting to modify Hue/Saturation in non-specific areas of an image, think about using the Replace Color feature the Replace Color feature is not an adjustment

layer; alterations are applied directly to the layerAdobe Photoshop CS4 - Illustrated



Adding a dark green to the sample

Adding a dark green to the sample

Sampling a light area of the door

Sampling a light area of the door

Using the Black & White Using the Black & White AdjustmentAdjustment

The most common way to make a color image appear as black-and-white is to desaturate it completely using a Hue/Saturation adjustment the adjustment reduces the saturation value of

every pixel to zero

The Black & White Adjustment can be used and offers brightness controls for converting the color original to black-and-white using these controls, an eye-catching, black-and-

white version of the color original can be created



Another way to create black and white from color is to convert the file from RGB Color mode to Grayscale mode Photoshop will discard all color data from the file,

reducing the file from three color channels to a single grayscale channel




Comparing desaturation (top) to a Black and White

adjustment (bottom)

Comparing desaturation (top) to a Black and White

adjustment (bottom)

““Colorizing” a Black & White Colorizing” a Black & White AdjustmentAdjustment

There are many techniques for adding color to a black-and-white image, creating a “colorized” effect use a layer mask on a Black & White adjustment

layer to gradually introduce color to a specific area of an image

create a radial gradient with a color center that gradates out to a very light shade of the color; or create one by hand which is not nearly as smooth and perfect


““Colorizing” a Black & White Colorizing” a Black & White AdjustmentAdjustment


Fill dialog boxFill dialog box

Colorize effectColorize effect

SummarySummary

In Photoshop there are a variety of techniques used to create color effects

Photoshop comes with hundreds of brushes on the Brushes panel

Masking is essential and it is why it is important to develop skills for using the Brush tool effectively

The Color Picker is one of the essential dialog boxes in Photoshop as it allows the user to choose any color available as a foreground or background color


SummarySummary

An understanding of HSB is helpful when using Photoshop as the Color Picker is designed in terms of HSB; hue, saturation, and brightness (lightness)

The most common way to make a color image appear as black-and-white is to desaturate it completely using a Hue/Saturation adjustment (there are other methods)

There are many techniques for adding color to a black-and-white image, creating a “colorized” effect


adobe photoshop cs4 – illustrated unit f: working with brushes and color effect

Documents

brush edge hardness

automatic brush strokespaint

automatic brush strokesone

automatic brush techniqueclick

connecting brush stroke

hardestedged brush

brushes panel custom

realistic color