Apply a Sobel Effect to an Image in the GIMP Application

Edited by Freya, VisiHow, Eng

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.

Apply a sobel effect to an image on GIMP.mp4-canvas64 578.jpg

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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.
    Apply a sobel effect to an image on GIMP.mp4-canvas14 578.jpg
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  2. 2
    First, click "Filters" at the top left-hand side of the window
    .
    Apply a sobel effect to an image on GIMP.mp4-canvas18 688.jpg
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  3. 3
    Then, move the cursor to "Edge-Detect"
    .
    Apply a sobel effect to an image on GIMP.mp4-canvas21 426.jpg
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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.
    Apply a sobel effect to an image on GIMP.mp4-canvas24 084.jpg
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  5. 5
    You can click and drag the preview or click the scrollbars and arrows to navigate your preview
    .
    Apply a sobel effect to an image on GIMP.mp4-canvas28 888147.jpg
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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.
    Apply a sobel effect to an image on GIMP.mp4-canvas33 582183.jpg
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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.
    Apply a sobel effect to an image on GIMP.mp4-canvas47 082.jpg
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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.
    Apply a sobel effect to an image on GIMP.mp4-canvas63 503.jpg
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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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APA (American Psychological Association)
Apply a Sobel Effect to an Image in the GIMP Application. (2016). In VisiHow. Retrieved Mar 27, 2017, from http://visihow.com/Apply_a_Sobel_Effect_to_an_Image_in_the_GIMP_Application

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MLA (Modern Language Association) "Apply a Sobel Effect to an Image in the GIMP Application." VisiHow, visihow.com/Apply_a_Sobel_Effect_to_an_Image_in_the_GIMP_Application Accessed 27 Mar 2017.

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Chicago / Turabian VisiHow.com. "Apply a Sobel Effect to an Image in the GIMP Application." Accessed Mar 27, 2017. http://visihow.com/Apply_a_Sobel_Effect_to_an_Image_in_the_GIMP_Application.

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Recent edits by: VisiHow, Freya

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