You can adjust the curve by dragging the control nodes, or by clicking to create new control nodes. To finish, click on the first point (the cursor changes to indicate when you are in the right spot). Holding down this key while clicking and dragging disables this feature, and the control node will be placed at the position of the mouse pointer.Įach time you left-click with the mouse, you create a new control point, which is connected to the last control point by a curve that tries to follow edges in the image. There is, however, one key modifier that has a special behavior if you use it while editing a selection, that is after you have added the first node:īy default, the auto-edge snap feature is enabled: whenever you click and drag the mouse pointer, the Scissors tool finds the point of the maximal gradient (where the color change is maximal) for placing a new control node or moving an existing node. The default behavior of the Shift, Ctrl, and Alt keys will be described in our next post. by clicking on the tool icon in the ToolBox,.From the image menu bar Tools → Selection Tools → Intelligent Scissors,.You can access the Intelligent Scissors Tool in different ways: On the whole, most people find the Path tool to be more useful than the Scissors, because, even though it does not have the intelligent edge-finding capability, the paths it produces persist until you delete them, and can be altered at any time. A good way to clean them up is to switch to QuickMask mode, and use paint tools to paint in the problematic parts. Unfortunately, there seem to be some problems with the edge-following logic for this tool, with the result that the selections it creates tend to be pretty crude in a lot of cases. If you are lucky, the path that the tool finds will correspond to the contour you are trying to select. The tool produces a continuous curve passing through these control nodes, following any high-contrast edges it can find. To use the Scissors, you click to create a set of “control nodes”, also referred to as anchors or control points, at the edges of the region you are trying to select. It is useful when you are trying to select a region defined by strong color-changes at the edges. The Intelligent Scissors tool is an interesting piece of equipment: it has some features in common with the Lasso, some features in common with the Path tool, and some features all its own.
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