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Text and images Copyright (C) 2002 and may not be used without permission of the author. Intention This tutorial shows how you can do vignette effects using a feature of GIMP called QuickMask. QuickMask is a convenient way to modify selections using pixel-changing tools such as the paintbrush, eraser, or any plug-in filter. It lets you make very precise adjustments to your selections.
This tutorial doesn’t use QuickMask for complex masking; it’s intended to show how you can use it to create quick and easy vignette effects. Step 1 For your first step, load up an image. Any image will do. GIMP 1.1.7, a development version of GIMP, introduced QuickMask. The QuickMask control button is located at the lower-left side of the image.
Step 2 First, make a rectangular selection around the edge of the image. Then click on the red-bordered QuickMask icon in the lower-left corner of your image. Step 3 After you click the red QuickMask button, a translucent red mask appears around your selection. This red mask represents the outside of your selection. When you click the dashed QuickMask button to go back into normal selection mode, anything red will not be selected, and anything clear will be.
So, let’s start playing with this mask. First, right click on the image and select.
Filters → Distorts → Waves from the menu. Apply the filter, and watch what happens to the mask. Step 4 The mask gets all wavy. Let’s add one more effect: Filters → Blur → Gaussian Blur (RLE). Step 5 Now that there is a soft edge on the mask, click the dashed QuickMask button to convert the mask back into a selection. Step 6 See how the selection follows the mask?
This is a powerful feature of QuickMask. You can use it to modify any existing selection, and you can even use it to create new selections.
Our last step is to use Select → Invert and Edit → Fill with BG Color. The result, a soft white fade into the background, is shown in the final step.
Final And there you have it. Some more examples are listed below. Examples The above image used Filters → Noise → Spread, with horizontal and vertical settings at 11, to get the effect.
![Mac Mac](/uploads/1/2/5/6/125624155/902203287.jpg)
I used some blurring and the Filters → Distorts → Newsprint plugin to get this effect. As in the tutorial, this one used Waves, but instead of blurring, I used Filters → Blur → Pixelize instead. The original tutorial can be found.
Using the Selection Tool After opening the image you want to edit in GIMP, click the elliptical selection tool button labeled with the ellipses icon in the toolbox pane below the main navigation menu. To select a circular part of the image, drag the selection tool cursor diagonally from one corner of the image pane toward the center.
Keep the drag line as straight as possible to form a neat circular shape. Moving the cursor up or down changes the circle to an ellipses shape, so avoid up or down movements. If you make a mistake, click the screen to clear the selection, then try again. To achieve a perfect circle, select “Fixed Size” rather than “Free Select” from the Tool Options pane. Type the same pixel size value into the width and height input boxes to form the circular selection.
Pasting the Selection After selecting a circular part of the image, copy the selection by clicking “Edit” in the main menu, followed by “Copy” in the drop-down menu. Select “Edit” again, then point to “Paste As” in the drop-down menu. Select “New Image” in the content menu. GIMP pastes the circular selection as a new image, which you can now edit with other GIMP tools or save as a circular selection. To retain the transparent background behind the circular image, save the file in a GIF or PNG image file format.