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NOTE: CentOS Enterprise Linux is built from the Red Hat Enterprise Linux source code. Other than logo and name changes CentOS Enterprise Linux is compatible with the equivalent Red Hat version. This document applies equally to both Red Hat and CentOS Enterprise Linux.
12.3. Editing and
Creating Images with the GIMP
The GNU Image Manipulation Program (GIMP) is a powerful application that can alter,
manipulate, enhance, and create digital image files. FIXME
discusses how to start the application. The following sections
discuss the main features of the application.
12.3.1. Saving an
Image
To save an image file, right-click on the image, choose
, and select either or . The
Save Image window opens. Navigate to the
directory where you would like to save your file. Enter a name for
your file in the field at the bottom of the window.
You must choose a file type for your image. By default, the
GIMP will save your file according to
the extension you type at the end of your file name. You may also
select the file type from the Determine File
Type drop-down menu above the file name field. When you are
ready to save, click the OK button.
Depending on the file type you selected, another window with
options may open. Ingeneral, it is a good idea to accept the
settings that the GIMP suggests. Click
the OK button again to complete the save
process.
12.3.2. Editing an
Image
To crop an image:
-
Open the image.
-
Right click on the image and select
=> => .
-
Left-click and drag the mouse pointer to create a frame that
fits the part of the image to keep.
-
Click the Crop button in the window
that opens as you drag the frame across the image.
-
If you are unhappy with the cropped image, press [Ctrl] -[Z] .
To Rotate an Image:
-
Open the image.
-
Right-click on the image and select
=> , then select any of the
Flip or Rotate
options.
-
If you are unhappy with the changes, press [Ctrl] -[Z] .
To Add Text to an Image:
-
Open the image.
-
Right-click on the image and select
=> => .
-
Left-click where the text should begin.
-
Type the text into the GIMP Text Editor
window.
-
Click the OK button.
-
Your text appears on the image.
-
If you are unhappy with the changes, press [Ctrl] -[Z] .
To apply a filter:
-
Open the file.
-
Right-click on the image and select .
-
Choose any of the filters available.
-
Choose options for the filter.
-
Click the OK button.
-
If you are unhappy with the changes, press [Ctrl] -[Z] .
To create a new image:
-
Choose => .
-
Ener the image size, image type, and fill type of the file.
-
Click the OK button.
-
Edit and manipulate the image with the GIMP's various tools.
-
Save your file.
While this chapter covers image applications briefly, there is
much more detailed information available. Refer to the following
resources if you are interested in learning more about the
applications in this chapter.
The GIMP has a help browser
accessible by choosing => from the GIMP
toolbar menu. This is an excellent place to begin searching for
answers. However, if the menu does not
provide enough information, try the following resources:
12.3.2.1. Useful
Websites
The Web has several sites of interest if you are looking for
more detailed information about an application covered in this
chapter:
12.3.2.2. Related
Books
If you need in-depth information about the many capabilities of
the GIMP, try your favorite bookstore.
The following books were available at the time of this writing:
-
The Artists' Guide to the GIMP by
Michael J. Hammel; Frank Kasper and Associates, Inc.
-
GIMP Essential Reference by Alex
Harford; New Riders Publishing
-
GIMP for Linux Bible by Stephanie
Cottrell Bryant, et al; Hungry Minds, Inc.
-
GIMP: The Official Handbook by Karin
Kylander and Olof S. Kylander; Coriolis Group
-
Grokking the GIMP by Carey Bunks; New
Riders Publishing
-
Sams Teach Yourself GIMP in 24 Hours by
Joshua and Ramona Pruitt; Sams
-
GIMP Pocket Reference by Sven Neumann;
O'Reilly and Associates
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