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Editorial Team
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Asked: 2026-06-06T16:33:39+00:00

Is there an image processing algorithm that can fill these gaps within an image?

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Is there an image processing algorithm that can fill these gaps within an image? The gaps are always lines and will run across the width of the image in all cases. The lines are mostly one-pixel thick.

Red lines indicate the gaps.

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  1. Editorial Team

    The ease of filling in these gaps depends on whether you’re willing to tolerate some artifacts in other parts of the image. The easiest solutions are generally to use morphological operations.

    If you want a quick and dirty approach, consider using cvMorphologyEx with an open operation using a rectangular structuring element that’s 1 pixel wide and tall enough to cross the gaps you want to cover.

    If this introduces unwanted artifacts, some additional background info would be helpful. For example, what’s the maximum vertical gap? Are the unwanted black lines always exactly horizontal, or can the be vertical? Are they ever close to each other? What types of artifacts can you afford in other parts of the image?

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