Selection tools are designed to select regions from the active layer so you can work on them without affecting the unselected areas. Each tool has its own individual properties, but the selection tools also share a number of options and features in common. These common features are described here; the variations are explained in the following sections for each tool specifically. If you need help with what a 'selection' is in GIMP, and how it works, see Selection.
There are seven selection tools:
the Rectangle Select;
the Ellipse Select;
the Free Select (the Lasso);
the Select Contiguous Regions (the Magic Wand) ;
the Select by Color;
the Select Shapes from Image (Intelligent Scissors) and
the Foreground Select.
- GIMP is a versatile graphics manipulation package. This page should help you get a taste of what GIMP is capable of. You can also have a look at our introduction page or browse through the tutorials. Customizable Interface¶ Each task requires a different environment and GIMP allows you to customize the view and behavior the way you like it.
- Most often, you start GIMPeither by clicking on an icon (if your system is set up to provide you with one), or by typing gimpon a command line. If you have multiple versions of GIMPinstalled, you may need to type gimp-2.6to get the latest version. You can, if you want, give a list of image files on the command line after the program name, and they will automatically be opened by GIMPas it starts.
Can You Remove the Fonts You Added to GIMP? Removing the fonts you've added to GIMP is as easy as adding them. All you need to do is remove the font folders you added to GIMP, and then refresh GIMP's fonts. However, you need to be careful when doing this to avoid removing relevant fonts from GIMP. Apr 09, 2020 4 GIMP 2.10.18 now offers a super cool 3D transform tool and streamlines the UI; Nov 03, 2019 3 GIMP introduces basic out-of-canvas editing! Apr 18, 2019 12 GIMP 2.
In some ways the Path tool can also be thought of as a selection tool: any closed path can be converted into a selection. It also can do a great deal more, though, and does not share the same set of options with the other selection tools.
The behavior of selection tools is modified if you hold down the Ctrl, Shift, and/or Alt keys while you use them.
| Note |
|---|
Advanced users find the modifier keys very valuable, but novice users often find them confusing. Fortunately, it is possible for most purposes to use the Mode buttons (described below) instead of modifier keys. |
When creating a selection, holding down the Ctrl key can have two different actions according to the way you use it:
Holding down the key while drawing the selection toggles the 'Expand from center' option.
If you hold down the Ctrl key before drawing a selection, this new selection switches to the Subtract mode. So, this new selection will be subtracted from an existing one as soon as you release the click, as far as they have common pixels.
Holding Alt will allow movement of the current selection (only its frame, not its content). If the whole image is moved instead of the selection only, try Shift+Alt. Note that the Alt key is sometimes intercepted by the windowing system (meaning that GIMP never knows that it was pressed), so this may not work for everybody.
When creating a selection, holding down the Shift key can have two different actions according to the way you use it:
If you hold down the key before clicking to start the selection, this selection will be in Addition mode as long as you press the key.
If you hold down the Shift key after clicking to start the selection, the effect will depend on the tool you are using: for example, the selection will be a square with the Rectangle Select tool.
Using Ctrl+Shift together can do a variety of things, depending on which tool is used. Common to all selection tools is that the selection mode will be switched to intersection, so that after the operation is finished, the selection will consist of the intersection of the region traced out with the pre-existing selection. It is an exercise for the reader to play with the various combinations available when performing selections while holding Ctrl+Shift and releasing either both or either prior to releasing the mouse .
Ctrl+Alt+ and Shift+Alt+ are used to move selections. See Section 2.1, 'Moving a Selection'.
Pressing the Space bar while using a selection tool transforms this tool into the Navigation cross as long as you press the bar, allowing you to pan around the image instead of using the scroll-bars when your image is bigger than the canvas. This is the default option: in Preferences/Image Windows, you can toggle the Space bar to the Move tool.
Here we describe the tool options that apply to all selection tools: options that apply only to some tools, or that affect each tool differently, are described in the sections devoted to the individual tools. The current settings for these options can be seen in the Tool Options dialog, which you should always have visible when you are using tools. To make the interface consistent, the same options are presented for all selection tools, even though some of them don't have any effect for some of the tools.
Figure 14.8. Common options of selection tools
This determines the way that the selection you create is combined with any pre-existing selection. Note that the functions performed by these buttons can be duplicated using modifier keys, as described above. For the most part, advanced users use the modifier keys; novice users find the mode buttons easier.
Replace mode will cause any existing selection to be destroyed or replaced when the new selection is created.
Add mode will cause the new selection to be added to any existing selection regions.
Subtract mode will remove the new selection area from any existing selection regions.
Intersection mode will make a new selection from the area where the existing selection region and the new selection region overlap.
This option only affects some selection tools: it causes the boundary of the selection to be drawn more smoothly.
This options allows the boundary of the selection to be blurred, so that points near the boundary are only partially selected. For further information regarding feathering, see the glossary entry Feathering.
When this option is checked, a Radius option appears. Default value is 10 pixels: higher image resolution, higher radius.
This tutorial will show you step by step how to replace one color in an image with another in GIMP in three different ways.
How to replace a color in an image using GIMP (first method)
How To Use Gimp 2.10
1. How to mix with logic pro x. Open GIMP.
2. Open the image you want to edit.
How To Use Gimp Software
Note: When a 'Convert to RGB Working Space' window appears, you click on the Keep button.
3. In the right window, you right-click on the small image thumbnail and then click on Duplicate Layer.
Or click on Layer (top menu) > Duplicate Layer.
4. Click on the 'Item Visibility' button (eye) of the bottom layer (thumbnail of image) to hide the item.
5. Click on the top layer (thumbnail of image) to select it.
6. Hold down the [ctrl] key on your keyboard and use the scroll button of your mouse to zoom in on the area of the image where you want to change the color.
7. Click on the 'Foreground Select' button located in the 'Toolbox' window.
Or click on Tools (top menu) > Selection Tools > Foreground Select.
8. Select around the edge of the area you want to replace the color and make sure to connect the end to the start. Easiest way to do this is to click, draw line, click, draw line, click, draw line, etc.
9. Press the [Enter] key on your keyboard.
10. With the paint brush tool, you draw inside the selected area and on the color you want to replace. Don't draw outside the selected area and don't worry about the color of the paint brush tool because the color doesn't matter.
You can adjust the stroke width of the paint brush tool in the 'Foreground Select' area located in the bottom left corner of GIMP.
11. Click on the Select button of the small 'Foreground Select' window that appears at the top right corner of the image.
Now you can see the selection around the edge of the area.
12. Click on Colors (top menu) > Hue-Saturation.
A 'Hue-Saturation' window will appear.
13. Use the Hue bar to change the color of the selected area.
14. Click on the OK button located in the bottom right corner of the 'Hue-Saturation' window.
15. Click on Select (top menu) > None.
16. You can now save the image (Click on File (top menu) > Export As).
How to replace a color in an image using GIMP (second method)
1. Open GIMP.
2. Open the image you want to edit.
Note: When a 'Convert to RGB Working Space' window appears, you click on the Keep button.
3. Click on Colors (top menu) > Map > Color Exchange.
Or right-click on the image > Colors > Map > Color Exchange.
A 'Color Exchange' window will appear.
4. At From Color, you click on the color picker button.
5. On the image, you click on the color that you want to replace.
6. At To Color, you select the desired replacement color.
7. Click on the OK button.
8. Click again on the OK button.
9. You can now save the image (Click on File (top menu) > Export As).
How to replace a color in an image using GIMP (third method)
1. Open GIMP.
2. Open the image you want to edit.
Note: When a 'Convert to RGB Working Space' window appears, you click on the Keep button.
3. Click on the 'Select by Color' button in the top right corner of the 'Toolbox' window.
Or click on Tools (top menu) > Selection Tools > By Color Select.
4. Click on the color in the image you want to replace.
GIMP will automatically select the same color throughout the image.
5. Click on the 'Foreground Select' button located in the 'Toolbox' window.
Or click on Tools (top menu) > Selection Tools > Foreground Select.
6. Select the desired replacement color.
7. Click on the OK button.
8. Click on the 'Bucket Fill' button located in the 'Toolbox' window.
Or click on Tools (top menu) > Paint Tools > Bucket Fill.
9. Make sure that the Fill whole selection option is checked (selected). You can find this option at the bottom of the 'Toolbox' window (bottom left corner).
10. On the image, you click on the color that you want to replace.
11. You can now save the image (Click on File (top menu) > Export As).
☕ Buy me a coffeeMaybe you're also interested in:
What Can Gimp Do
References:
