Choose a video-editing program such Final Cut Pro, Vegas Pro or Adobe Premiere Pro or video-enhancing program such as Topaz Enhance, Video Enhancer or Enhance Movie to sharpen your blurred video footage.
Import your blurred video in your selected program. Although the location of this function may slightly vary per program, this is typically under the "File" menu. Wait for the imported video to appear in your program's "Import Window."
Drag your video clip from the "Import Window" to the "Editing Timeline."
Highlight the video clip in preparation for the sharpening process.
Click on the "Sharpen" button in your program. This is usually found in the program's "Video Filters," "Video Effects" or "Tools" menu. This function is usually on the same location as similar functions like "Blur," "Brightness," "Contrast" and "Saturation." Others have a dedicated "Video Toolbox" where a small icon refers to the "Sharpen" tool. For video-editing programs, you can get plugins that are meant for sharpening a video. If you want to use this, select the "Plugins" button or tab in your program's menu or toolbox.
Wait until the "Sharpen" controls appear in a separate window, then use the available slider to increase or decrease the sharpening effect in your video. Some programs also provide a space where you can type the sharpening value you want to use. Use the "Preview Window" to determine how much sharpening effect you need to improve your video's quality. Note that too much sharpening can lead to unlikely digital artifacts that will actually not help improve your video. The poorer the quality of your original video, the less visual improvement you can employ in its enhanced look.
Save your file, then render it. The render function is typically located under a dedicated "Render" menu, which shows drop-down options like "Render All," "Render Audio" and "Render Video." This allows you to use the more specific rendering function that best suits your needs. Rendering refers to generating a final image from your original footage by incorporating all the edits and effects your placed on it.
Export the video in your desired file format, if necessary. This is the final step in producing a final edited video when using a video-editing program. Some video-enhancing programs may simply require saving and rendering to get your final sharpened video.