Adobe Photoshop 7'0 Design Professional

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Chapter Lessons
OVERVIEW

• Use a layer mask with a selection
• Work with layer masks and layer content
• Control pixels to blend colors
• Eliminate a layer mask
• Use an adjustment layer
• Create a clipping mask

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Using Special Layer Features
INTRODUCTION

• Use special layer features to modify an entire
  image or an entire layer
• Define the precise area to manipulate in each
  layer
• Adjust the appearance of each layer without
  altering the original image

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Layer Functions
INTRODUCTION

• Turn changes on or off
• Align images
• Blend and adjust color
• Combine elements to enhance an image

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Use a Layer Mask with a Selection Understanding
Layer Masks
LESSON 1

• Layer masks can cover an entire layer or specific
  areas within a layer
• Masks are flexible
• Hide their effect when viewing the image or
  change the masks
• Add an unlimited number of masks to an image
• One mask per layer

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Creating a Layer Mask
LESSON 1

• Use tools on the Tools palette to create the area
  to mask
• Apply the mask to the selection or to everything
  except the selection
• Feather the edges of the selection, if required

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Traditional Definition of Mask
LESSON 1

• The term Mask comes from printing
• A mask was opaque material or tape used to block
  off an area of the artwork that would not be
  printed

MASK
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Painting a Layer Mask
LESSON 1

• Add a layer mask to a layer
• Reshape the layer mask with the Brush Tool and a
  specific brush size or tip

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Painting with Black Foreground
LESSON 1

• If the image is painted with a black foreground,
  the size of the mask increases
• Each brush stroke hides pixels on the image layer
• Paint with black to hide pixels

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Layer Mask Example
LESSON 1
School Bus layer
Layer mask thumbnail
Layer mask is black to hide pixels
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Painting with White Foreground
LESSON 1

• If the image is painted with white as the
  foreground, the size of the mask decreases
• Each brush stroke restores pixels of the layer
  object
• Paint with white to reveal pixels

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Correcting a Mask
LESSON 1

• Switch the foreground and background colors and
  paint over the mistake
• The Layer mask thumbnail on the Layer palette
  updates itself to reflect changes made to the mask

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Work with Layer Masks Layer Content
Understanding Layers and Masks
LESSON 2

• The layer mask is a powerful editing tool
• Allows repeated editing of an image without ever
  disturbing the original pixels that make up the
  image
• By default, the mask is linked to the layer
• When the layer is moved, the mask moves as well

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Understanding the Link Icon
LESSON 2

• The Link icon appears when a layer mask is
  created
• When creating a layer mask, the link icon appears
  between the layer thumbnail and the layer mask
  thumbnail

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Selecting Multiple Layers
LESSON 2

• Group or link layers to make multiple layers into
  one layer
• To link layers, the layer (not the layer mask)
  must be active
• Link the active layer to other layers, even those
  in different layer groups
• Link entire layer groups to a single layer or to
  other layer groups

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Selecting Multiple Layers
LESSON 2

• Select multiple layers
• Note that Link layers button is not dimmed

Link layers button
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Using Multiple Selection Layers
LESSON 2

• After selecting multiple layers, perform actions
  that affect the group for example
• Moving the content of selected layers as a single
  unit
• Unlink layers by deselecting some/all of the
  selected layers

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Aligning Multiple Layers
LESSON 2

• To align multiple layers
• Select the layers on the Layers palette
• Select one of the six options from the Align
  Linked command on the Layer menu

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Aligned Layers
LESSON 2
Centers of the Bananas, Floating strawberries,
and Blueberries layers are aligned
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Distributing Selected Layers
LESSON 2

• To distribute means to evenly space content
• Distributing procedure
• Select three or more layers
• Verify opacity settings are 50 or greater
• Select one of the six options from the Distribute
  command on the Layer menu

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Transforming Objects
LESSON 2

• Use 1 of 10 transform commands on the Edit menu
  to transform an object
• Choose a transforming command
• A transform box appears around the object to be
  transformed
• A transform box (or bounding box) is a rectangle
  that surrounds an image and contains handles used
  to change dimensions

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Transform Box
LESSON 2
Bounding Box with selection handles surrounds
object to be transformed
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Transforming Sequence
LESSON 2

• Select the object
• Choose a transform command or a sequence of
  transform commands
• Apply changes by clicking the Commit transform
  button on the options bar

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Transforming Examples
LESSON 2
After
Before
Strawberries flipped
Strawberries scaled
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Control Pixels to Blend Colors Blending Pixels
LESSON 3

• Control the colors and form of an image by
  blending pixels on one layer with pixels on
  another layer
• Blending options are located in the Layer Style
  dialog box

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Layer Style Dialog Box
LESSON 3
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Controlling Blending
LESSON 3

• Control how pixels are blended by choosing a
  color as the Blend If color
• The Blend If color determines the color range for
  the pixels to blend
• Use the This Layer and Underlying Layer sliders

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Blending Example
LESSON 3
After Pixels Blended
Before Pixels Blended
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Sliders
LESSON 3

• This Layer sliders
• Specify the range of pixels that will be blended
  on the active layer
• Underlying Layer sliders
• Specify the range of pixels that will be blended
  on all the lowerbut still visiblelayers

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Using Duplicate Layers
LESSON 3

• Create interesting effects by duplicating layers
• Click the layer to duplicate
• Click the Layers palette list arrow
• Click Duplicate Layer, then click OK

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Eliminate a Layer Mask Disabling Layer Masks
LESSON 4

• Disable a layer mask to
• Create duplicate layers and layer masks
• Apply different styles and affects to layer masks
• Show and hide layer masks individually to find
  the mask that gives the desired look

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Removing Layer Masks
LESSON 4

• Options for removing layer masks
• Apply the mask to the layer so that it becomes a
  permanent part of the layer
• Discard the mask and its effect completely

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Use an Adjustment Layer Understanding Adjustment
Layers
LESSON 5

• A special layer that acts as a color filter for a
  single layer or all the layers beneath
• Create an adjustment layer to adjust color and
  tone
• Color changes made to the adjustment layer exist
  only in the adjustment layer, leaving the
  original layer unchanged

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Creating an Adjustment Layer
LESSON 5

• Select the layer to adjust
• Use the Layer menu to click a new adjustments
  layer command or by clicking the Create new fill
  or adjustment layer button on the Layers palette
• Specify which of the color adjustments is required

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Sample Adjustment Layer
LESSON 5
New Adjustment Layer added to the Layers palette
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Color Adjustments
LESSON 5

• Selective Color
• Channel Mixer
• Gradient Map
• Invert
• Threshold
• Posterize

• Levels
• Curves
• Color Balance
• Brightness/Contrast
• Hue/Saturation

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Working with Adjustment Layers
LESSON 5

• Modify an adjustment layer by double-clicking the
  layer thumbnail on the adjustment layer
• Use as many adjustment layers as required, but
  create each one individually
• Merge adjustment layers with any visible layers
  in the image, including multiple-selection layers

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Create a Clipping Mask Understanding Clipping
Masks
LESSON 6

• Group of two or more contiguous layers
• Used when one layer is to act as the mask for
  other layers or if the adjustment layer is to
  affect only the layer directly beneath it
• Bottom layer of a clipping mask is called the
  base layer and serves as the mask

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Creating a Clipping Mask
LESSON 6

• Two layers are required
• One to create the shape of the mask
• One to supply the content for the mask
• Either a type or an image layer can be used to
  create the clipping mask shape

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Clipping Mask Sample
LESSON 6
Clipped texture appeared in the layer
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Removing a Clipping Mask
LESSON 6

• Layers in a clipping mask are grouped together
• Ungroup the layers to remove the clipping mask

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Chapter 7 Tasks
SUMMARY

• Understand layer masks
• Create a layer mask
• Link layers
• Align and distribute linked layers
• Transform objects

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Chapter 7 Tasks
SUMMARY

• Blend pixels
• Eliminate a layer mask
• Create and use an adjustment layer
• Create a clipping mask