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By Color Select   Enables you to pick areas of an image that have a similar spectrum of colours. This
                                 Tool           tool and the Fuzzy Select tool are different in that the latter only selects continuous
                                                pixels, or those that are close to one another. On the other hand, the By Color Select
                                                tool selects every pixel that falls within the colour range, regardless of where it is on
                                                the image.
                                 Intelligent    When attempting to select an area with prominent colour changes at the boundaries,
                                 Scissors       this tool can be helpful. To utilise the Intelligent Scissors, click the edges of the zone
                                                you want to pick in order to generate 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.
                                                Note that a good, smooth path is not always produced by this tool. Instead, the Path
                                                tool is more frequently used by knowledgeable GIMP users.
                 To use selection tools on images, follow the steps given below:

                 Step 1:  Open the image on which you want to apply selection tool.
                 Step 2:  In the GIMP toolbox, click on the selection tool icon. The selection tool can also be chosen by clicking the
                         desired Selection tools after choosing Tools from the program’s menu. To pick the desired area, the tool of
                         choice is dragged over the visible portion of the image.
                 Step 3:  After the region has been chosen, a boundary (such as a rectangle, ellipse, marquee, etc.) is visible all the way
                         around it.
                 Step 4:  The chosen area is used for additional image processing and other processes.





                                                                                       Boundary
                                                                                      around the
                                                                                        image
















                 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


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