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Step 3: After the region has been chosen, a boundary (such as a rectangle, ellipse, marquee, etc.) is visible all the way
around it.
2
Boundary
around the
image
3 1
If a user presses and holds down the Ctrl, Shift, and/or Alt keys, the behaviour of selection tools changes. These keys
and/or key combinations are referred to as key modifiers since they could be connected to a mode.
Key Modifiers Purpose
Ctrl Prior to drawing a selection: Removes from selection (Subtract Mode)
While making the selection: expand from the centre
Alt Moves frame of the current selection
Shift Add a selection (Addition Mode)
Ctrl + Shift Intersection Mode is chosen
Ctrl+Alt+Drag Move the selections
Space Bar Helps in navigation across the image
Ctrl + I The selection is reversed
Intelligent Scissors
The Intelligent Scissors tool shares certain characteristics with the Lasso, some with the Path tool, and some
characteristics exclusively with it. When attempting to identify a zone with prominent colour changes near the
boundaries, it can be helpful. To utilise the Scissors, click the boundaries of the zone you want to pick in order to
establish a collection of “control nodes,” also known as anchors or control points. Following any high-contrast edges it
can locate, the tool creates a continuous curve that passes through these control nodes.
Perform the following steps to use the Intelligent Scissors Tool:
Step 1: Open an image in GIMP.
Step 2: Click on the Intelligent Scissors tool in the Toolbox.
OR
Click on Tools Selection Tools Intelligent Scissors option.
OR
Press I on your keyboard.
Step 3: Press Enter key outside the boundary.
Multimedia Design Using GIMP 235

