You can smooth rough edges of scanned line art images using the retouching techniques described in this tutorial.

Click here to open a sample image.

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Use the Paint tool to remove imperfections in a scanned line art image caused by dust, scratches, or missing pixels.

  1. Click the black color swatch from the on-screen Color Palette.
  2. Click the Paint tool from the Toolbox.
  3. Paint in any obviously missing lines or spots of the black areas of the image.
  4. Click the white color swatch from the on-screen Color Palette.
  5. Paint over any dark blemishes in the white areas of the image.

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Convert the image to grayscale color mode and apply the Gaussian Blur filter to soften the jagged edges of the image.

  1. Click Image menu, Convert To, Grayscale (8-bit).
  2. Click Effects menu, Blur, Gaussian Blur.
  3. In the Gaussian Blur dialog box, type 1 in the Radius box, and click OK.

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Sharpen the edges of the image with the Threshold filter so that the edges don't appear too blurry.

  1. Click Image menu, Transform, Threshold.
  2. In the Threshold dialog box, click the To Black button.
  3. Type 165 in the Threshold box.
  4. Click the Preview button to preview the effect.
  5. Continue adjusting the Threshold value until you achieve the desired amount of edge sharpening, and then click OK.

You have now learned how to smooth scanned line art images. Here's an example of what your image might look like.


Click here for more cool effects.

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