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Copyright Notice and Open
Grokking the GIMP
by
Carey Bunks
Buy the Printed Version of this Book
Download an HTML Tarball of this Book
Copyright Notice and Open Publication License
About the Author
Contents
List of Figures
List of Tables
Preface
Acknowledgements
README
Book Overview
Mouse Clicks
Function Names, Menus, and Keyboard Shortcuts
Setting up Your Computer to Get the Most from the GIMP
Notes on RAM
Notes on Video RAM
Notes on Swap and GIMP Memory Management
Loading Fonts
Setting the X Window System to Run More Than 8 bpp
Sources of Raw Image Materials
The History of the GIMP
1. GIMP Basics
1.1 Introducing the GIMP Windows and Dialogs
1.1.1 The Toolbox
1.1.2 The Image Window
1.1.3 The Layers, Channels, and Paths Dialogs
1.1.4 The Dialogs for Color, Brushes, Patterns, Gradients, and Palettes
1.2 Loading and Saving Images
1.3 Creating New Images
1.4 RGB, Grayscale, and Indexed Images
1.5 Undoing and Redoing
1.6 Recalling the Last Filter Dialog
1.7 Copy, Cut, and Paste Buffers
1.8 Zoom and New View
1.8.1 Zoom
1.8.2 New View
1.9 The Help System
1.10 Common Problems and
Frequently Asked Questions
2. Review of Layers
2.1 Layers and the Role They Play in Images
2.1.1 The Layers Dialog
2.1.2 The Layers Menu
2.2 Channels and Their Relationship
to Layers
2.2.1 The Channels Dialog
2.3 Layer Creation, Deletion, Duplication, and Organization
2.3.1 Creating New Layers
2.3.2 Raising Layers
2.3.3 Lowering Layers
2.3.4 Duplicating Layers
2.3.5 Deleting Layers
2.4 Layer Export and Import
2.5 Floats
2.5.1 Automatic Creation of Floats
2.5.2 Explicit Creation of Floats
2.5.3 Anchoring Floats
2.6 Manipulating Layers
2.6.1 Positioning Layers
2.6.1.1 Moving Layers
2.6.1.2 Aligning Layers with Guides
2.6.1.3 Toggling the Layer Boundary
2.6.2 Resizing and Scaling
2.6.2.1 Image Scaling
2.6.2.2 Image Resizing
2.6.2.3 Layer Scaling
2.6.2.4 Layer Resizing
2.6.3 Flipping
2.6.4 Rotating in 90
o
Increments
2.6.5 The Transform Tool
2.6.5.1 Rotation
2.6.5.2 Scaling
2.6.5.3 Shearing
2.6.5.4 Perspective
2.7 Combining Layers
2.7.1 Merging
2.7.2 Flattening
2.8 Common Problems and
Frequently Asked Questions
3. Selections
3.1 The Basic Selection Tools
3.1.1 The Six Selection Tools from the Toolbox
3.1.1.1 The
Rectangle Select
and
Ellipse Select
Tools
3.1.1.2 The
Lasso
(the
Free-Hand Selection
Tool)
3.1.1.3 The
Magic Wand
(the
Fuzzy Select
Tool)
3.1.1.4 Bezier Paths
3.1.1.5 The
Intelligent Scissors
3.1.2 Selection Tool Options
3.1.2.1 Antialiasing
3.1.2.2 Feathering
3.1.2.3 Sample Merged
3.1.2.4 Threshold
3.2 Combining Selections
3.2.1 Adding
3.2.2 Subtracting
3.2.3 Intersecting
3.2.4 Using Add, Subtract, and Intersect with the Rectangle and Ellipse Selection Tool Features
3.2.5 Moving a Selection Boundary
3.3 The Select Menu and Friends
3.3.1 The
Invert
Function
3.3.2 The
All
Function
3.3.3 The
None
Function
3.3.4 The
Float
Function
3.3.5 The
Feather
Function
3.3.6 The
Sharpen
Function
3.3.7 The
Shrink
Function
3.3.8 The
Grow
Function
3.3.9 The
Border
Function
3.3.10 The
Save to Channel
Function
3.3.11 The
By Color
Function
3.3.12 The
To Path
Function
3.3.13 The
Toggle Selection
Function
3.3.14
Copy
,
Cut
, and
Paste
3.3.15
Stroke
3.4 The Paths Dialog
3.4.1 The Paths Palette
3.4.2 The Control Point Mode Buttons
3.4.3 The Paths Menu
3.4.4 The Paths Button Bar
3.5 Using Selections Effectively
3.5.1 General Selection Tool Guidelines
3.5.2 Tool Conjugation
3.5.3 Using
Zoom
3.5.4 Selections and Guides
3.6 Common Problems and
Frequently Asked Questions
4. Masks
4.1 Channel Masks
4.1.1 The Channels Dialog
4.1.2 Saving Selections to Channel Masks
4.1.3 Making Channel Masks Visible
4.1.4 Setting a Channel Mask's Color, Transparency, and Title
4.1.5 The Channels Menu
4.1.6 Combining Channels
4.1.7 Partially Selected Pixels
4.2 Layer Masks
4.2.1 Creating a Layer Mask
4.2.2 Manipulating the Layer Mask
4.3 Basic Tools for Working with Channel and Layer Masks
4.3.1 Painting Tools
4.3.2 Selection Tools
4.3.3 Gradients
4.3.4 Transparency as a Tool for Editing Masks
4.3.5 Blurring of Masks and Other Effects
4.4 Conversions of Selections, Channel Masks,
Layer Masks, and Alpha Channels
4.5 Masks and Selections
4.5.1 Using Masks to Refine Selections
4.5.2 The Quick Mask
4.5.3 Finding the Natural Mask
4.5.3.1 Working with the
Threshold
Tool
4.5.3.2 The
Threshold
Tool Versus the
Magic Wand
4.5.3.3 Threshold and Decompose
4.6 Common Problems and
Frequently Asked Questions
5. Colorspaces and Blending Modes
5.1 The RGB Colorspace
5.2 The HSV Colorspace
5.3 Relating HSV to RGB
5.4 The Subtractive Color Systems CMY
and CMYK
5.5 Conversion to Grayscale
5.6 The Blending Modes
5.6.1 The
Normal
,
Dissolve
, and
Behind
Blending Modes
5.6.2 The
Addition
,
Subtract
, and
Difference
Blending Modes
5.6.3 The
Multiply (Burn)
,
Divide (Dodge)
,
Screen
, and
Overlay
Blending Modes
5.6.4 The
Darken Only
and
Lighten Only
Blending Modes
5.6.5 The
Hue
,
Saturation
,
Value
, and
Color
Blending Modes
5.7 Opacity and Transparency
5.8 Practical Uses of Blending Modes
5.8.1 Colorization
5.8.2 Realistic Shadows and Highlights
5.9 Common Problems and
Frequently Asked Questions
6. Touchup and Enhancement
6.1 Improving Tonal Range
6.1.1 Highlights and Shadows
6.1.2 Using the
Levels
Tool
6.2 Removing Color Casts
6.2.1 The
Curves
Tool
6.2.2 Color Correcting by Balancing the Neutrals
6.2.3 Finding the Shadow, Midtone, and Highlight
6.2.4 Other Colors We Know
6.2.5 The Perturbation Technique
6.2.6 Getting More Detail into the Subject
6.2.7 Other Color Correcting Tools
6.2.7.1 The
Color Balance
Tool
6.2.7.2 The
Brightness-Contrast
Tool
6.2.7.3 The
Hue-Saturation
Tool
6.3 Repairing Blemishes with the Clone Tool
6.4 Sharpening
6.4.1 The
Unsharp Mask
Concept
6.4.2 A Simplified but Illustrative Example
6.4.3 A Representative Example of Applying
the
Unsharp Mask
6.4.4
Unsharp Mask
Pitfalls
6.5 A Case Study
7. Compositing
7.1 Project 1: Fish on Holiday!
7.2 Project 2: Through the Looking Glass
7.3 Project 3: Destination Saturn
7.4 Project 4: The Call of the Mermaid
7.5 Project 5: Panoramas
7.5.1 Correcting Geometric Distortions
7.5.2 Color and Brightness Matching
7.5.3 Blending
7.5.4 Final Touches
8. Rendering Techniques
8.1 The
Bucket Fill
Tool
8.2 Gradient Rendering Techniques
8.3 The
Emboss
and
Bump map
Filters
8.4 Shadows
8.5 Rendering Project I: Drop Shadow and Punchout
8.6 Rendering Project II: A Carved Stencil
8.7 Rendering Project III: Chiseled Text
9. Web-Centric GIMP
9.1 Web Animations
9.1.1 Using GIF Files for Animation
9.1.2 GIMP Layers Can Behave Like Animation Frames
9.1.3 Saving Animations to GIF
9.1.4 A Second Example of Creating a GIF Animation
9.1.5 Animation Optimization
9.1.6 IWarp
9.2 Clickable Image Maps
9.3 Type Effects
9.4 Tileable Backgrounds
9.5 Web-Safe Color
9.5.1 Types of Color Distortion
9.5.2 Low-Color Systems and Web Browser
Color Palettes
9.5.3 Converting to Indexed Color
9.5.4 What Is the Best Choice?
9.6 Semi-Transparency and Indexed Images
9.7 Which Format GIF or JPEG?
Bibliography
10. GIMP Resources
11. Keyboard Shortcuts
Index
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