8/8/2023 0 Comments Gimp gradient effect text![]() Once you have a selection, there are many things that you can do with it. You can also drag the Lasso tool to draw the outline of a region freehand. The Free Select (or Lasso) tool, which is next to the Ellipse, can be used to select polygonal regions: Just click a sequence of points to select the vertices of the polygon, and click back on the initial point to close the polygon. The Ellipse Select tool can be used to select oval-shaped regions. One of the settings in the “Tool Options” dialog for the Rectangle Select tool allows you to round off the corners of the rectangle. For example, click the Rectangle tool, and drag the mouse on the image to select a rectangular region. The selection tools-at the top of the Toolbox-can be used to select regions in the image. However, it is possible to draw such shapes using selections. You’ll notice that Gimp does not have tools for drawing shapes such as rectangles and circles. The Brush is probably the most basic and useful tool: ![]() Here, for example, are the options for the Brush tool, which is used for painting on an image in the usual sense. The contents of the dialog change when you select a new tool. Here is an illustration of the Toolbox with a few annotations:īelow the Toolbox is the “Tool Options” dialog, which contains options for the drawing tool that is currently selected. The Toolbox also has buttons for controlling the foreground and background color. Click or drag the mouse on an image window to apply the selected tool. (My discussion here assumes that you are working in single-window mode, with the window in its original configuration.) You can hover your mouse over a tool button to find out what the tool is for. Gimp has a wide variety of tools, which you can find in the “Toolbox” in the upper left corner of the window. I strongly suggest that you get Gimp and experiment with it as you read about it here! As you experiment, remember that you can always use Control-Z to undo any action. In general, you should save your images in JPEG or PNG format. ![]() These commands let you save images in a wide variety of formats. If you opened an image file for editing, the “Export” command becomes an “Overwrite” command that is used to replace the original image with the edited version. To save an image file, you should use the “Export” or “Export As” command in the “File” menu. It saves the full Gimp editing environment, which you need for more complex projects if you want to be able to return to editing them later. An xcf file is not an image, and it can only be opened with Gimp. The “Save” command will save an “.xcf” file, which is Gimp’s own format. And there is an “Open” command that lets you open an existing image for editing. You will be able to set the size of the image and other properties, such as background color. Gimp’s “File” menu has a “New” command that lets you create a new image from scratch. And finally, switch back to single-window mode by selecting the option in the “Windows” menu. Click “Reset Saved Window Positions to Default Values.” Restart Gimp for the changes to take effect. Go to the “Window Management” section of the preferences. To do that: Select the “Preferences” command from the menu. If you ever mess up the original window layout, it can be difficult to figure out how to get it back. There are also tabs on the dialog window to the right that allow you to access several different dialogs. The central editing area uses tabs when multiple images are open. You will then see a window with a central area where you can work on images, with dialogs along the left and right edges. To use it, just enable the option “Single-Window Mode” in the “Windows” menu. Note that when you start Gimp 2.8 for the first time, it will be in “multi-window mode.” I find it much easier to use “single-window mode,” which organizes all of Gimp’s open images and dialogs into one window. This appendix is based on Gimp 2.8, which is the latest stable version as of January, 2018. It is available for Linux, Mac OS, and Windows. It’s easy to find documentation and tutorials on Gimp, starting with its “Help” menu. This book covers only a very limited subset of Gimp’s features. Gimp can be used both for creating images from scratch and for modifying existing images. Gimp, the Gnu Image Manipulation Program, is a free and open-source program that has many of the capabilities of the better-known commercial program, Adobe Photoshop.
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