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Manipulating
Gr
a
a
phics
with
The
GIMP
Use the ‘Layers’ dialog to view the available layers of an image. The text tool au-
tomatically creates special text layers when used. The active layer is highlighted.
The buttons at the bottom of the dialog offer a number of functions. More are
available in the menu opened when a layer is right-clicked in the dialog. The two
icon spaces before the image name are used for toggling image visibility (eye icon
when visible) and for linking layers. Linked layers are marked with the chain
icon and moved as a group.
tomatically creates special text layers when used. The active layer is highlighted.
The buttons at the bottom of the dialog offer a number of functions. More are
available in the menu opened when a layer is right-clicked in the dialog. The two
icon spaces before the image name are used for toggling image visibility (eye icon
when visible) and for linking layers. Linked layers are marked with the chain
icon and moved as a group.
Only layers with transparency (an alpha channel) can be placed above other lay-
ers in a stack. To add this to a layer, right-click and select it from the menu.
ers in a stack. To add this to a layer, right-click and select it from the menu.
20.6.2
Image Modes
GIMP has three image modes — RGB, Grayscale, and Indexed. RGB is a normal
color mode and is the best mode for editing most images. Grayscale is used for
black-and-white images. Indexed limits the colors in the image to a set number. It
is mainly used for GIF images. If you need an indexed image, it is normally best
to edit the image in RGB then convert to indexed right before saving. If you save
to a format that requires an indexed image, GIMP offers to index the image when
saving.
color mode and is the best mode for editing most images. Grayscale is used for
black-and-white images. Indexed limits the colors in the image to a set number. It
is mainly used for GIF images. If you need an indexed image, it is normally best
to edit the image in RGB then convert to indexed right before saving. If you save
to a format that requires an indexed image, GIMP offers to index the image when
saving.
20.6.3
Special Effects
The GIMP includes a wide range of filters and scripts for adding special effects
to an image or making artistic manipulations. They are available in ‘Filters’ and
‘Script-fu’. Experimenting is the best way to find out what is available. ‘Xtns’
in the toolbox includes a number of items for creating buttons, logos, and other
things.
to an image or making artistic manipulations. They are available in ‘Filters’ and
‘Script-fu’. Experimenting is the best way to find out what is available. ‘Xtns’
in the toolbox includes a number of items for creating buttons, logos, and other
things.
20.7
Printing Images
To print an image, select ‘File’ ➝ ‘Print’ from the image menu. If your printer is
configured in SUSE, it should appear in the list. In some cases, it may be nec-
essary to select an appropriate driver with ‘Setup Printer’. Select the appropri-
ate paper size with ‘Media Size’ and the type in ‘Media Type’. Other settings are
available in the ‘Image / Output Settings’ tab.
configured in SUSE, it should appear in the list. In some cases, it may be nec-
essary to select an appropriate driver with ‘Setup Printer’. Select the appropri-
ate paper size with ‘Media Size’ and the type in ‘Media Type’. Other settings are
available in the ‘Image / Output Settings’ tab.
In the bottom portion of the window, adjust the image size. Press ‘Use Original
Image Size’ to take these settings from the image itself. This is recommended if
Image Size’ to take these settings from the image itself. This is recommended if
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