How to Blur Part of a Picture Out in Paint.net
Blur effects be used to obscure the faces of people in pictures and preserve their anonymity. Lightly applied blur effects can be used to suggest motion. If you intend to use an image commercially, you can use blur to distort trademarked logos on objects in your pictures. And with the help of Paint.NET and its filters, you can apply blur to pictures on your computer.
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Instructions
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1
Launch Paint.NET. Download and install a free copy of Paint.NET if you haven't already. Load your project or image into Paint.NET -- select the "Open" option from Paint.NET's "File" heading.
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Select the "lasso" tool from Paint.NET's "Tools" window. Use the lasso to trace the perimeter of the object you'd like to blur -- hold down your mouse's left button while you trace.
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Click on Paint.NET's "Effects" heading. Highlight the "Blur" heading in the menu that appears below the "Effects" heading, and then click on the "Gaussian Blur" option.
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Use the "Radius" slider in the "Gaussian Blur" menu to adjust the amount of blur applied to your selection. Drag the slider to the right to increase the intensity of the blur, and drag it back to toward the left to lower the blur. Click "OK."
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Select the "Save" option from the "File" menu to store changes to your image or project.
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