Book description
From first installation to advanced image manipulation techniques, Beginning GIMP: From Novice to Professional, Second Edition explains how anyone can utilize The GIMP: a free, open source image manipulation program. You will learn how to install The GIMP on Windows, Linux, and MacOS X platforms. Once you've installed the application, you'll learn about the interface and configuration options, and then jump into a quick and simple project to familiarize yourself.
With four-color graphics and screenshots throughout, you'll learn how to prepare camera images for display on web pages-including processes like rescaling, cropping, and balancing color. Utilizing layers, paths, and masks are also covered in extensive detail. Of course, you will also learn how to draw lines and shapes; utilize patterns and gradients; and even create your own brushes, patterns, and gradients.
GIMP expert and author Akkana Peck teaches you how to touch up digital photographs, smudging away blemishes, fixing red-eye, and stitching panoramic images. You'll learn how to tap into the powerful filters, effects, and plug-ins that are available for The GIMP and automate tasks using scripts. The entire book is approached in a project-based manner, and as you progress, numerous projects will help strengthen your newly acquired abilities.
Table of contents
- Copyright
- About the Author
- About the Technical Reviewer
- Acknowledgments
- Introduction
- 1. Getting to Know GIMP
- 2. Improving Digital Photos
-
3. Introduction to Layers
- 3.1. What Is a Layer?
- 3.2. Using Layers to Add Text
- 3.3. Using the Move Tool
- 3.4. Changing Colors
- 3.5. Simple Effects Using Layers
- 3.6. Linking Layers Together
- 3.7. Performing Operations on Layers
- 3.8. Using Layers for Copy and Paste
- 3.9. Aligning Layers
- 3.10. A Tour of the Layers Dialog
- 3.11. Bonus Project: Making Simple GIF Animations
- 3.12. Summary
- 4. Drawing
-
5. Selection
- 5.1. Working with Selections
- 5.2. Select by Color and Fuzzy Select
- 5.3. Bezier Paths
- 5.4. The Intelligent Scissors
- 5.5. Modifying Selections with Selection Modes
- 5.6. The QuickMask
- 5.7. Highlighting Foreground Objects
- 5.8. Using Channels to Save a Selection
- 5.9. Layer Masks
- 5.10. Extracting Foreground Objects with SIOX
- 5.11. Summary
- 6. Erasing and Touching Up
-
7. Filters and Effects
- 7.1. Image Window Filters vs. Toolbox Xtns
-
7.2. Filters for Images
- 7.2.1. Tools vs. Plug-ins
- 7.2.2. The Filters Menu
- 7.2.3. Blur
- 7.2.4. Enhance
- 7.2.5. Distorts
- 7.2.6. Light and Shadow
- 7.2.7. Noise Filters
- 7.2.8. Edge-detection Filters
- 7.2.9. "Generic" Filters
- 7.2.10. Combine
- 7.2.11. The Artistic Filters
- 7.2.12. The Map Filters
- 7.2.13. Adding Patterns to a Layer
- 7.2.14. Filters to Help Make Web Pages
- 7.2.15. Animation Helpers
- 7.2.16. Alpha to Logo
- 7.2.17. Decor
- 7.3. Scripts to Make New Images: The Xtns Menu
- 7.4. Summary
-
8. Color
- 8.1. RGB and CMY Color
- 8.2. Working in HSV
- 8.3. Working for Print: CMYK
- 8.4. GIMP's Other Color Choosers
- 8.5. Correcting Color Balance
- 8.6. Working with Grayscale or Black and White
- 8.7. Coloring Monochrome Images and Making Sepia Photos
- 8.8. Using Threshold to Clean Up Scanned Images
- 8.9. Indexed Color
- 8.10. Picking Colors from the Image
- 8.11. The Color Channels
- 8.12. Selection Using Color Decomposition
- 8.13. Some Color-mapping Toys
- 8.14. Color Profiles
- 8.15. Summary
-
9. Advanced Drawing
- 9.1. Useful Mask Tricks
-
9.2. Layer Modes
- 9.2.1. A Quick Tour Through All of GIMP's Layer Modes
- 9.2.2. Addition, Subtract, and Difference
- 9.2.3. Multiply and Divide
- 9.2.4. Dodge and Burn, Screen and Overlay
- 9.2.5. Hard and Soft Lights
- 9.2.6. Darken or Lighten Only
- 9.2.7. Grain Extract and Grain Merge
- 9.2.8. Hue, Color, Saturation, and Value
- 9.3. Creating Depth: Drawing with Layer Modes
- 9.4. Drawing Realistic Shadows
- 9.5. Realism and Multipoint Perspective
- 9.6. Adding Reflections and Shading
- 9.7. Making Brushes, Patterns, and Gradients
- 9.8. Summary
-
10. Advanced Compositing
- 10.1. Colorizing Images
- 10.2. Combining Patterns with Textures or Grain
- 10.3. Using Layer Modes to Improve Photos
- 10.4. Making Photos into Art Using Layer Modes
-
10.5. Compositing Unrelated Images
- 10.5.1. Using Soft Light for Combining Images
- 10.5.2. Using Overlay for Dark Images
- 10.5.3. Using Screen to Get a Lighter Effect
- 10.5.4. Using Addition to Complement Light and Dark
- 10.5.5. Using Subtract to Make a Cutout Mask
- 10.5.6. Making Eerie Colors with Burn
- 10.5.7. Using Grain Merge to Add Texture
- 10.6. Stacking Images
-
10.7. Stitching Panoramas
- 10.7.1. Shooting the Images
- 10.7.2. Decide on a Resolution
- 10.7.3. Calculate Your Expected New Image Size
- 10.7.4. Load the First Two Images
- 10.7.5. Make a Gradient Layer Mask
- 10.7.6. Fine-tune the Position of the Second Image
- 10.7.7. Adjust the Layer Mask
- 10.7.8. Adjust with Other Tools If Necessary
- 10.7.9. Add the Rest of the Images
- 10.7.10. Final Adjustments
- 10.8. Summary
-
11. Plug-ins and Scripting
- 11.1. Plug-ins
-
11.2. Writing GIMP Scripts
- 11.2.1. Script-Fu (= Scheme (= Lisp))
- 11.2.2. Python
- 11.2.3. Perl
-
11.2.4. Reading and Modifying a Script-Fu Script
- 11.2.4.1. Find the Original Script
- 11.2.4.2. Edit a Copy of the Script
- 11.2.4.3. Make the Script Your Own
- 11.2.4.4. Try Making a Change
- 11.2.4.5. Try Your Fix
- 11.2.4.6. What Went Wrong? Some GIMP Peculiarities
- 11.2.4.7. Bringing the Shadow Back
- 11.2.4.8. Anatomy of Script-Fu: A Stroll Through the Sphere Script
-
11.3. User Interface Options for Scripts
-
11.3.1.
- 11.3.1.1. TOGGLE
- 11.3.1.2. STRING
- 11.3.1.3. ADJUSTMENT
- 11.3.1.4. TEXT
- 11.3.1.5. OPTION
- 11.3.1.6. RADIO
- 11.3.1.7. COLOR
- 11.3.1.8. FONT
- 11.3.1.9. FILENAME
- 11.3.1.10. DIRNAME
- 11.3.1.11. ENUM
- 11.3.1.12. BRUSH
- 11.3.1.13. PATTERN
- 11.3.1.14. GRADIENT
- 11.3.1.15. PALETTE
- 11.3.1.16. VECTORS
- 11.3.1.17. IMAGE, LAYER, CHANNEL, DRAWABLE
-
11.3.1.
- 11.4. A Python Script
- 11.5. Finding Out How to Do Things: The Procedure Browser
- 11.6. A Perl Script
-
11.7. Writing a C Plug-in
- 11.7.1. A Tour Through Zealous Crop
- 11.7.2. The run Procedure
- 11.7.3. The Routine That Does the Work
- 11.7.4. Getting Pixels: Tiles and Pixel Regions
- 11.7.5. Searching the Image for Blank Rows and Columns
- 11.7.6. Writing to Pixel Regions
- 11.7.7. Making a New Plug-in
- 11.7.8. Layer Coordinates vs. Image Coordinates
- 11.7.9. Setting Boundaries
- 11.7.10. Handling the Edges One at a Time
- 11.8. Summary
-
12. Additional Topics
- 12.1. Printing
- 12.2. Screen Shots and Scanners: The Acquire Menu
-
12.3. GIMP Preferences
- 12.3.1. Environment
- 12.3.2. User Interface and Keyboard Shortcuts
- 12.3.3. Theme
- 12.3.4. Help System
- 12.3.5. Tool Options
- 12.3.6. Toolbox
- 12.3.7. Default Image
- 12.3.8. Default Grid
- 12.3.9. Image Windows
- 12.3.10. Image Windows: Appearance
- 12.3.11. Display
- 12.3.12. Color Management
- 12.3.13. Input Devices
- 12.3.14. Window Management
- 12.3.15. Folders
-
12.4. GIMP Configuration Files
-
12.4.1. gimprc
- 12.4.1.1. Stingy Memory Use
- 12.4.1.2. Default Brush, Pattern, Palette, Gradient, and Font
- 12.4.1.3. Share Palette
- 12.4.1.4. "Perfect Mouse"
- 12.4.1.5. Default Threshold
- 12.4.1.6. Saving Modified Images
- 12.4.1.7. Help Browser on F1
- 12.4.1.8. Help Locales
- 12.4.1.9. Restoring Keyboard Shortcuts
- 12.4.1.10. Tear-off Menus
- 12.4.1.11. Plug-in Paths
- 12.4.2. Changing Preview Sizes with gtkrc
- 12.4.3. GIMP's Window Positions and Configuration: sessionrc
- 12.4.4. Key Bindings for Menu Entries: menurc
- 12.4.5. Other Files
- 12.4.6. Folders Inside the GIMP Profile
-
12.4.1. gimprc
- 12.5. Additional Resources
- 12.6. Summary and Conclusion
- A. Getting and Installing GIMP
- B. Installing GIMP on Older Systems
- C. Building from Source
- D. A Preview of GIMP 2.6
Product information
- Title: Beginning GIMP: From Novice to Professional, Second Edition
- Author(s):
- Release date: January 2009
- Publisher(s): Apress
- ISBN: 9781430210702
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