Things You'll Need
Instructions
Run your preferred image editing software and open the blurred image. Most software, including the programs bundled with your operating system, offer a sharpening or blur reduction tool.
Locate and click the "Filter" tab on the software's top toolbar. Depending on which software you're using, the location of the "Filter" menu may vary.
Highlight the "Sharpen" option in the drop-down window that appears. A second window will appear, listing several different blur reduction filters.
Apply the filter that best suits the type of blurring in your image. For example, if your image contains soft edges as a result of focusing error, select "Sharpen Edges".
View the results once the filter has been applied. To further reduce blur, select "Sharpen More" from the filter menu.
Save the image once you achieve the desired effect. To preserve the original photo, use a different name for the corrected image.