GIMP入门指南：从新手到专业

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"GIMP Introduction" 是一本针对开源图像处理软件GIMP的详尽指南，由Akkana Peck编著，适合从新手到专业人员的学习者。该书的第二版于2008年发布，版权归属明确，强调所有内容未经许可不得复制或传播。书籍的ISBN号码分别为纸质版的978-1-4302-1070-2和电子版的978-1-4302-1069-6。本书的核心内容深入浅出地讲解了GIMP的各种功能和操作，包括图像编辑、绘图、图层管理、滤镜应用、色彩校正等，使得读者能够逐步掌握这个强大工具。书中不仅包含了实际操作步骤，还穿插了相关的数学公式，确保理论与实践相结合，使学习者理解图像处理背后的原理。作者在编写过程中，特别注重教育性与实用性，通过实例演示和步骤解析，帮助新手快速上手，同时为有一定基础的专业人士提供进阶技巧。书中还可能包含C代码示例，让读者了解GIMP的底层实现机制，这对于对编程感兴趣的用户来说是一大亮点。此外，"GIMP Introduction" 由经验丰富的编辑团队共同完成，如Lead Editor Matt Wade和Technical Reviewer Guillermo S. Romero，他们确保了内容的专业性和准确性。项目管理由Beth负责，确保整个出版过程的顺利进行。这本书是GIMP爱好者的必备参考书籍，无论是希望通过GIMP提升图像处理技能的新手，还是希望深入理解软件内部机制的开发者，都能从中受益匪浅。它既是一个实用的教程，又是一本深入探讨图像处理技术的教材。

Installing on Macintosh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 523

The Quick Start Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 524

The (Slightly) Longer Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 524

Installing on Linux (and Other UNIXy Systems) . . . . . . . . . . . . . . . . . . . . . 524

The Quick Start Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 525

The (Slightly) Longer Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 525

■APPENDIX B Installing GIMP on Older Systems . . . . . . . . . . . . . . . . . . . . . . . . 527

Older Linux or UNIX Versions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 527

Older Windows Versions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 528

Older OS X Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 528

■APPENDIX C Building from Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 531

Getting the Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 531

■APPENDIX D A Preview of GIMP 2.6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 535

No More Toolbox Menus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 535

The Improved Free/Polygonal Select Tool . . . . . . . . . . . . . . . . . . . . . . . . . . 536

GEGL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 537

Color Tool Improvements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 538

Brush Dynamics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 538

Text Tool Wrapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 539

Other Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 539

■INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 541

■CONTENTS xvii

Acknowledgments

First of all, thanks to my husband, David North. Not only did he help enormously with for-

matting, proofreading, finding sample photos, and endless testing of GIMP quirks on multiple

platforms, but he also put up with the neuroses of a stressed-out first-time author. And then

he was willing to do it all again for a second edition!

Equally important is Guillermo Romero, the book’s technical reviewer, without whom this

book would not have been possible. He patiently waded through first drafts, flagged my silly

errors, asked probing questions, and took the time to teach me a lot about digital art. I’m not

an artist yet, but I’m learning.

Thanks to Pat Peck (hi, Mom!) and the members of Linuxchix who were willing to be

guinea pigs for the online GIMP course that indirectly led to this book. And to two other

Linuxchix: Carla Schroder, for all her encouragement, writing tips, and witty remarks; and

Dana Sibera, for laughs, explanations of techniques, and an appreciation of what a real artist

can do with (or to) a photo.

Thanks to all the GIMP developers for using their talents and spare time to create such a

wonderful program, and for spending even more time explaining details of the program to

folks who need help. Some of the most active: Sven Neumann, Michael Natterer, Bill Skaggs,

Martin Nordholts, Øyvind Kolås, Kevin Cozens, João S. O. Bueno, Alexia Death, Michael

Schumacher, Mukund Sivaraman, Ulf-D. Ehlert, Simon Budig, Tor Lillqvist, Manish Singh,

Karine Delvare, David Odin, and Maurits Rijk.

Thanks to Lisa and Evan Avery, for letting me use the photo of their son Ethan; to Cathleen

Wang Blythe and Polarbear; to Bill Condrashoff, Benita Asher, and Jackpot; and to Dave

Nakamoto and Dragan Stanojevic´- Nevidljivi for helping out with samples of image stacking

(which unfortunately didn’t make it into the final version due to space considerations).

Last but not least, many thanks to the folks at Apress for helping me through every step of

the process, and for putting up with all my tweaks and revisions. In particular, thanks to open

source editor Matt Wade, project manager Beth Christmas, awesome copy editor Liz Welch,

production editor Jill Ellis, and proofreader April Eddy.

xxiii

Introduction

So you want to learn image editing!

Maybe you’ve been shooting lots of pictures with your digital camera and want to learn

how to make them look great, or prepare them for the web.

Maybe you’re interested in creating drawings or cartoons. Or you’re already editing pho-

tos, but you want to do more… even learn some of the theory behind imaging.

In any case, you’ve been hearing about GIMP—the GNU Image Manipulation Program—

and you’re ready to learn how to use it and get the most out of it.

This book is ideal for anyone attempting image editing for the first time, but it goes deep

enough to satisfy the intermediate GIMPster who knows the basics but needs more. Plus, it

contains enough tricks and reference matter to gratify even power users. Anyone with an

interest in digital art and a willingness to explore should find lots of useful tips and fun proj-

ects throughout the book.

This second edition includes several new projects and tips not in the first edition, and

covers some of the new features that went into 2.4 at the last minute (as well as a preview of

GIMP 2.6).

Structure of the Book

The first few chapters assume no knowledge at all of GIMP or of any other image-editing pro-

gram. Later chapters will assume you’ve picked up these basics, and will build on them.

Chapter 1 introduces GIMP’s various windows, menus, and interface conventions. GIMP

has a somewhat different user interface from most other programs, so it helps to get an idea of

how its windows and dialog boxes work together and how the menus are structured.

Beginning with Chapter 2, you’ll dive into practical image-editing tasks. Chapters 2

through 6 each cover a different category of image operations—layers, drawing, selection,

touching up—and each one describes a series of different and related techniques.

Chapter 7 takes you on a whirlwind tour of the special effects available in GIMP. Then

you’ll dive into more advanced topics in Chapters 8 through 10, which cover subjects such as

color theory, layer mode effects, shading, perspective, image stacking, and panoramas.

Chapter 11 explores scripts and plug-ins: how they work, how to install existing ones, and

how to take one and tweak it to do something slightly different. I hope that even people with

no programming experience will at least take a look at the scripting sections—there’s a lot you

can do with GIMP scripts, even if you’ve never written a line of code before.

For the exercises throughout most of the book, you will want to have some digital photo-

graphs handy. If you don’t already have a digital camera or a collection of scanned photos,

the section “Additional Resources” in Chapter 12 offers a list of websites where you’ll find all

sorts of terrific photos you can use in your own projects. The rest of Chapter 12 covers a few

topics that don’t fit anywhere else in the book, plus web resources for finding more GIMP

information.

xxv

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