第1章 はじめに

目次

1. GIMP へようこそ
1.1. GIMP をつくったひとびと
1.2. GIMP のヘルプシステム
1.3. 機能と性能
2. What's new in GIMP 2.10.18?

1. GIMP へようこそ

GIMP is a multi-platform tool to create and edit images of all kinds. GIMP is an acronym for GNU Image Manipulation Program.

GIMP has many capabilities. It can be used as a simple paint program, an expert quality photo retouching program, a tool to create digital art, an online batch processing system, a mass production image renderer, an image format converter, etc.

GIMP は拡張にも優れています。 どんな要望にも応えられるよう、 プラグインや機能拡張が添加できるデザインになっています。 ちょっとした加工からとても込み入った画像処理までカバーする高度なスクリプト対応があります。 このスクリプトの記述は簡単です。

One of GIMP's strengths is its free availability from many sources for many operating systems. Most GNU / Linux distributions include GIMP as a standard application. GIMP is also available for other operating systems such as Microsoft Windows™ or Apple's macOS™ (Darwin). GIMP is a Free Software application covered by the General Public License version 3 [GPL]. The GPL provides users with the freedom to access and alter the source code that makes up computer programs.

1.1. GIMP をつくったひとびと

The first version of GIMP was written by Peter Mattis and Spencer Kimball. Over the years many other people have contributed by helping with development, testing, providing support, translating and writing documentation. GIMP releases are currently being orchestrated by Mitch Natterer and Jehan Pagès and the other members of the GIMP-Team.

1.2. GIMP のヘルプシステム

The GIMP Documentation Team provides the information that tries to help you understand how to use GIMP. The User Manual is an important part of this help. The latest version is always available on the website of the Documentation Team [GIMP-DOCS] in HTML format. The HTML version is also available as context sensitive help (needs to be installed separately) while using GIMP by pressing the F1 key. Help on specific menu items can be accessed by pressing the F1 key while the mouse pointer is focused on the menu item. Read on to begin your GIMP journey.

1.3. 機能と性能

GIMP を使ってできることやその性能の概要をざっと挙げますとつぎのようになります。

  • 絵筆、 鉛筆、 エアブラシ、 スタンプなどすべての描画ツールを網羅。

  • Tile-based memory management, so image size is limited only by available disk space.

  • Sub-pixel sampling for all paint tools for high-quality anti-aliasing.

  • Full Alpha channel support for working with transparency.

  • Layers and channels.

  • A procedural database for calling internal GIMP functions from external programs, such as Script-Fu.

  • Advanced scripting capabilities.

  • Multiple undo/redo (limited only by disk space).

  • Transformation tools including rotate, scale, shear and flip.

  • Support for a wide range of file formats, including JPEG, PNG, GIF, PSD, DDS, XPM, TIFF, TGA, MPEG, PS, PDF, PCX, BMP and many others.

  • Selection tools, including rectangle, ellipse, free, fuzzy, bezier and intelligent scissors.

  • プラグイン機能により新しいファイル形式にも即対応でき、 エフェクトフィルターも追加可能。