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In GIMP, channels are very similar to layers; except, each layer corresponds to a different level in the image’s colour
model (RGB, HSV or CMYK). Channels dialogues can be chosen in any combination, and are indicated as a gray shading,
if currently active.
The function of ‘Channels’ is to manage selection masks and process colour channels (applied to images). Additionally,
the Path dialogue with layers and Channels is used to manipulate paths of images for creation, deletion, saving,
converting to or from selections, etc.
Recap Zone
Ð Ð Multimedia is a combination of the phrases multi (meaning many) and media (meaning information).
Ð Ð GIMP is an open-source multimedia design tool.
Ð Ð The image is stored in. xcf format by default in GIMP.
Ð Ð The Toolbox is a collection of icon buttons that are used to select tools.
Ð Ð The various tools in the toolbox are organized into selection tools, paint tools, transform tools, color tools and other tools.
Ð Ð With the use of selection tools, you may choose precisely the area of the image you wish to work with.
Ð Ð If a user presses and holds down the Ctrl, Shift, and/or Alt keys, the behaviour of selection tools may be changed. These
keys and/or key combinations are referred to as key modifiers.
Ð Ð The ink tool, paintbrush, airbrush, and pencil are the four fundamental paint tools in Gimp.
Ð Ð The primary purpose of transform tools is to change how an image or a specific component of an image appears.
Ð Ð The colour tools are used to control image colours in several ways.
Ð Ð The Path tool generates control points that you can shift about as needed, much like the Intelligent Scissors.
Ð Ð The other additional tools in GIMP are Color Picker, Zoom, Measure and Text.
Ð Ð GIMP’s Preferences tab in Edit menu offers capabilities for customization, like customising keyboard shortcuts and
enabling previews, keeping interfaces up to date, calibrating monitors, altering window appearances, and managing
colour.
Ð Ð A filter is a unique tool made to accept an input layer or image, apply a mathematical procedure to it, and then return the
input layer or image in a modified format.
Ð Ð Transparent sheets are piled on top of one another to create layers, which allow for the editing of one object without
impacting the other objects in the image.
Ð Ð We can modify layers, delete layers, move levels around, and create new layers.
Ð Ð The Background layer is the only layer that exists when we create a new image in GIMP.
Ð Ð Layer masks are a vital tool for modifying images. They enable us to choose manage transparency and other elements.
Ð Ð In GIMP, you may give your image transparency by adding an alpha channel.
Ð Ð The function of ‘Channels’ is to manage selection masks and process colour channels.
Multimedia Design Using GIMP 305

