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How to sharpen blurry footage and remove motion blur with AI in DaVinci Resolve 21

DaVinci Resolve 21 introduces AI UltraSharpen for advanced sharpening and AI Motion Deblur for removing motion artifacts. This guide covers setup, best use cases, and how to apply them selectively.

How do you sharpen blurry footage with AI UltraSharpen in DaVinci Resolve 21?

DaVinci Resolve 21 introduces AI UltraSharpen, the most advanced sharpening tool in the application to date. It produces significantly clearer, high-quality moving images by analyzing source media at a pixel level and applying intelligent sharpening that enhances detail without introducing the halos and artifacts common to traditional sharpening filters.

AI UltraSharpen is available as a Resolve FX plugin in the Color page. Open the Color page on the clip you want to sharpen, locate "Resolve FX AI UltraSharpen" in the Open FX list, and drag it onto the clip's node. The controls include a single Strength slider that adjusts the intensity of the sharpening effect.

The tool is particularly effective with upscaled video. When you use Resolve's Super Resolution or Super Scale to increase a clip's resolution, AI UltraSharpen can make the upscaled footage significantly sharper by recovering detail that the upscaling process softens. Previously unusable footage — low-resolution archival material, heavily compressed web video, or soft focus shots — can become usable at higher resolutions after processing.

For more DaVinci Resolve tips, read our guide on DaVinci Resolve AI Tools for Colorists and Editors.

Master Fusion effects with How to use node-based compositing in DaVinci Resolve Fusion.

How does AI Motion Deblur work in DaVinci Resolve 21?

AI Motion Deblur removes common motion blur artifacts such as streaks and softness from video content. It analyzes the source media file and generates a new render with significantly reduced blurring, producing more dynamic images that appear sharper during motion.

The tool is ideal for:

• Slow-motion effects: Footage shot at normal frame rates and slowed down often reveals motion blur between frames. AI Motion Deblur cleans up the blurred frames for cleaner slow-motion playback.
• Freeze frames: Freezing a frame captured during camera movement usually results in a blurry still. Apply Motion Deblur before freezing to get a usable still image.
• Action footage: Sports, wildlife, and action camera footage often have motion blur from fast movement. The tool reduces the blur while preserving the sense of motion.
• Handheld footage: Imperfect stabilization can leave motion blur artifacts. Motion Deblur cleans these up after stabilization.

AI Motion Deblur is also available as a Resolve FX plugin in the Color page. The controls include a Strength slider and a Motion Type selector that lets you specify whether the blur is horizontal, vertical, or unknown. For most footage, the "Auto" setting detects the motion direction automatically.

Where should you place UltraSharpen and Motion Deblur in the node tree?

Both tools should be applied early in the node chain, before primary color correction. Applying them to the least-processed image data produces the best results because the AI has the most information to work with.

The recommended node order is:

1. Source clip
2. AI Motion Deblur (if needed) — removes motion artifacts
3. AI UltraSharpen (if needed) — restores detail
4. Primary color correction — exposure, contrast, white balance
5. Secondary grading — qualifiers, power windows
6. Output

Applying sharpening before color correction ensures that the grade works with the cleanest possible image. If you sharpen after grading, the sharpening can amplify noise introduced by color adjustments, particularly in shadow areas.

When should you use UltraSharpen vs traditional sharpening in Resolve?

| Scenario | Recommended tool | Reason |

|---|---|---|

| Upscaled low-res footage | AI UltraSharpen | Recovers detail Super Scale softens |

| Slightly soft lens focus | AI UltraSharpen | Intelligent sharpening without artifacts |

| Broadcast/web delivery sharpening | Traditional Sharpen | Faster processing, adequate for HD delivery |

| Heavy film grain presence | Traditional Sharpen | AI tools may amplify grain |

| Motion blur cleanup | AI Motion Deblur | Purpose-built for motion artifacts |

| Slow-motion frame cleanup | AI Motion Deblur + UltraSharpen | Deblur first, then sharpen |

Traditional sharpening filters like the standard Sharpen Resolve FX or Unsharp Mask are faster to process and adequate for final delivery sharpening on clean footage. AI UltraSharpen is best reserved for footage that needs significant detail restoration — upscaled clips, archival material, or shots where the original focus was slightly off.

Why should you apply UltraSharpen and Motion Deblur selectively?

Both tools are computationally intensive. AI UltraSharpen must analyze every pixel in every frame to determine the optimal sharpening. AI Motion Deblur must track motion vectors across frames to identify and remove blur patterns. Applying them to entire timelines filled with unedited footage wastes significant processing time.

The efficient workflow is to pre-edit your footage first. Use Cutsio to upload raw footage, auto-transcribe it, and find the specific clips that need sharpening or deblurring. Highlight those sections, remove retakes and dead air using the Silent Slicer, and export an EDL or XML. Import the timeline into DaVinci Resolve 21 and apply UltraSharpen or Motion Deblur only to the specific clips that need correction.

For example, in a 2-hour documentary interview, only 3 minutes of B-roll footage might need motion deblurring. Without pre-editing, you would apply the effect to the entire project timeline. With pre-editing, you apply it only to those 3 minutes of clips.

FAQ

Is AI UltraSharpen available in the free version of DaVinci Resolve 21?

No. AI UltraSharpen requires DaVinci Resolve 21 Studio.

Can I use AI Motion Deblur and UltraSharpen together on the same clip?

Yes. Apply Motion Deblur first to clean up motion artifacts, then UltraSharpen to restore detail. This produces the best results for footage with both motion blur and softness.

What resolution does AI UltraSharpen support?

AI UltraSharpen supports any resolution that DaVinci Resolve handles, from SD to 8K and beyond. Processing time scales with resolution.

Does AI Motion Deblur work on 360-degree footage?

AI Motion Deblur is designed for standard 2D footage. Results on 360-degree equirectangular footage may vary.

Can I keyframe UltraSharpen or Motion Deblur?

Yes. Both tools allow keyframing on their primary parameters, so you can increase or decrease the effect within a single clip.