Apply a Sobel Effect to an Image in the GIMP Application

Edited by Freya, VisiHow, Eng, Visihow Admin

You're watching VisiHow. In this tutorial, we're going to show you how to apply a "Sobel" effect to an image in GIMP in Windows 7.


Steps

  1. 1
    You should have GIMP open and an image ready to use. For more information, refer to our tutorials on how to open GIMP and how to open existing documents in GIMP.
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  2. 2
    First, click "Filters" at the top left-hand side of the window.
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  3. 3
    Then, move the cursor to "Edge-Detect".
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  4. 4
    Now, click "Sobel..." from the menu that appears. A dialogue box will appear with a preview of your image.
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  5. 5
    You can click and drag the preview or click the scrollbars and arrows to navigate your preview.
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  6. 6
    If you cannot see the preview image, ensure that the "Preview" box inside the dialogue window is checked. Now, you can begin experimenting with your settings.
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  7. 7
    You can check and uncheck "Sobel horizontally" and "Sobel vertically". The "Sobel" filter transforms the image into an outline by using white lines. The difference between the Sobel and Laplace filters is that the Sobel filter keeps the RGB colors as well.
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  8. 8
    If you are satisfied with your settings, then click "OK". This will apply the effect to the image. A green bar will appear to show that the changes are being applied.
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This is a VisiHow tutorial, and we've just shown you how to apply a "Sobel" effect to an image in GIMP in Windows 7. If you have any questions or comments regarding this tutorial or the program used, just add them to the section below. Thank you for choosing VisiHow!

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Video: Apply a Sobel Effect to an Image in the GIMP Application

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Categories : Software

Recent edits by: Eng, VisiHow, Freya

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