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How do I convert raster to vector in Inkscape?

Published in Inkscape Tutorials 3 mins read

To convert a raster image (like a JPG or PNG) to a vector image in Inkscape, you'll use the "Trace Bitmap" function. Here's how:

Steps to Convert Raster to Vector in Inkscape:

  1. Import the Raster Image: Open Inkscape and create a new document. Go to File > Import and select your raster image.

  2. Select the Image: Click on the image to select it. A bounding box should appear around it.

  3. Trace Bitmap:

    • Go to Path > Trace Bitmap (or use the shortcut Shift + Alt + B). This opens the Trace Bitmap dialog box.

  4. Adjust Trace Bitmap Settings:

    • The Trace Bitmap dialog offers various options to control the conversion process. The optimal settings will depend on your image. Some common settings include:

      • Single Scan:
        • Brightness cutoff: Adjust the threshold to define what's considered part of the image and what's not. A higher value will make fainter areas disappear.
        • Edge detection: Traces the edges of the image based on contrast.
        • Color quantization: Creates a vector image by reducing the number of colors in the original raster image.
      • Multiple Scans: Useful for color images, tracing each color separately.
        • Colors: Traces each color in the image. Set the number of scans to the number of colors you want to trace.
        • Grays: Traces different levels of gray.

    • Live Preview: Check the "Live Preview" box to see how your settings affect the resulting vector image.

  5. Apply the Trace: Once you're satisfied with the preview, click "Apply". Inkscape will create a vector version of your image on top of the original raster image.

  6. Separate Vector and Raster Images: Click and drag the new vector image away from the original raster image. You can then delete the original raster image.

  7. Reduce Nodes (Optional): The traced vector image might have a large number of nodes (points that define the curves). Reducing the number of nodes can simplify the image and make it easier to edit.

    • Select the vector image.
    • Go to Path > Simplify (or use the shortcut Ctrl + L). Repeat if needed, but be careful not to distort the image too much.

  8. Edit and Refine: The vector image is now fully editable. You can use Inkscape's tools to adjust shapes, colors, and paths as needed.

  9. Check Size and Scale of Design: The tracing process can sometimes alter the size and scale. Ensure the new vector design is the correct dimensions you need for your project.

By following these steps, you can successfully convert raster images to vector graphics in Inkscape, opening up a world of editing possibilities and scalability.

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